Материал: part03

DICOM PS3.3 2020a - Information Object Definitions​

Page 51​

C.34.12. Performed CT Reconstruction Module ...............................................................................................

1579​

C.34.12.1. Content Qualification ...............................................................................................................

1583​

C.34.13. Defined Storage Module .................................................................................................................

1583​

C.34.13.1. Storage Protocol Elements .......................................................................................................

1584​

C.34.14. Performed Storage Module .............................................................................................................

1584​

C.34.15. Protocol Approval .........................................................................................................................

1586​

C.35. Manufacturing 3D Model Modules ............................................................................................................

1587​

C.35.1. Manufacturing 3D Model Module .......................................................................................................

1587​

C.36. RT Second Generation Modules ..............................................................................................................

1589​

C.36.1. RT Second Generation Concepts .......................................................................................................

1589​

C.36.1.1. RT Second Generation Radiation Concepts ...................................................................................

1589​

C.36.1.1.1. Control Points ...................................................................................................................

1589​

C.36.1.1.2. Nominal Energy ................................................................................................................

1589​

C.36.1.1.3. Meterset ..........................................................................................................................

1589​

C.36.1.1.4. Radiation Dose Point ..........................................................................................................

1589​

C.36.1.1.5. Continuous Rotation Angle ..................................................................................................

1590​

C.36.1.1.6. External Contour ...............................................................................................................

1590​

C.36.1.1.7. C-Arm LINAC ...................................................................................................................

1590​

C.36.1.1.8. Virtual Simulation ..............................................................................................................

1590​

C.36.1.1.9. Beam Modifier Coordinate System ........................................................................................

1590​

C.36.1.1.10. Radiation Source .............................................................................................................

1591​

C.36.2. RT Second Generation Macros .........................................................................................................

1591​

C.36.2.1. RT Second Generation General Purpose Macros ...........................................................................

1591​

C.36.2.1.1. Radiation Fraction Pattern Macro ..........................................................................................

1591​

C.36.2.1.1.1. Radiation Fraction Pattern Macro Attribute Descriptions ......................................................

1592​

C.36.2.1.1.1.1. Fraction Pattern ...................................................................................................

1592​

C.36.2.1.1.1.2. Intended Start Day of Week ....................................................................................

1592​

C.36.2.1.2. RT Treatment Phase Macro .................................................................................................

1593​

C.36.2.1.2.1. RT Treatment Phase Macro Attribute Descriptions .............................................................

1593​

C.36.2.1.2.1.1. Intended Phase Start Date, Intended Phase End Date .................................................

1593​

C.36.2.1.3. RT Treatment Phase Interval Macro ......................................................................................

1594​

C.36.2.1.3.1. Referenced RT Treatment Phases ..................................................................................

1594​

C.36.2.1.3.2. RT Treatment Phase Interval Conflicts ............................................................................

1595​

C.36.2.1.4. Dosimetric Objective Macro .................................................................................................

1595​

C.36.2.1.4.1. Dosimetric Objective Macro Attribute Descriptions .............................................................

1596​

C.36.2.1.4.1.1. Dosimetric Objective UID .......................................................................................

1596​

C.36.2.1.4.1.2. Dosimetric Objective Parameter Sequence ................................................................

1596​

C.36.2.1.4.1.2.1. Dosimetric Objective Parameter Sequence Examples ............................................

1597​

C.36.2.1.4.1.3. Radiobiological Dose Effect Sequence ......................................................................

1598​

C.36.2.1.5. Radiobiological Dose Effect Description Macro ........................................................................

1598​

C.36.2.1.5.1. Radiobiological Dose Effect Description Macro Attribute Descriptions ....................................

1598​

C.36.2.1.5.1.1. Effective Dose Method Modifier Code Sequence .........................................................

1598​

C.36.2.2. RT Second Generation Device Macros .........................................................................................

1599​

C.36.2.2.1. Treatment Device Identification Macro ...................................................................................

1599​

C.36.2.2.2. RT Patient Support Devices Macro ........................................................................................

1599​

C.36.2.2.3. RT Accessory Device Identification Macro ..............................................................................

1600​

C.36.2.2.4. RT Treatment Position Macro ...............................................................................................

1601​

C.36.2.2.5. RT Control Point General Macro ...........................................................................................

1601​

C.36.2.2.5.1. RT Control Point Attribute Concept .................................................................................

1602​

C.36.2.2.5.1.1. Requirements for Changing Values within RT Control Point Sequence Attributes ...............

1602​

C.36.2.2.5.1.2. Control Point Attribute Example ...............................................................................

1603​

C.36.2.2.5.1.3. Cumulative Meterset .............................................................................................

1604​

C.36.2.2.6. External Beam Control Point General Macro ...........................................................................

1604​

C.36.2.2.7. Radiation Generation Mode Macro ........................................................................................

1605​

C.36.2.2.7.1. Radiation Generation Mode Macro Attribute Description ......................................................

1607​

C.36.2.2.7.1.1. Energy Attributes ..................................................................................................

1607​

C.36.2.2.7.1.2. Radiation Generation Mode Machine Code ................................................................

1607​

C.36.2.2.7.1.3. Radiation Generation Mode Label ............................................................................

1607​

C.36.2.2.8. RT Beam Limiting Devices Definition Macro ............................................................................

1607​

C.36.2.2.8.1. RT Beam Limiting Device Definition Macro Attribute Description ...........................................

1609​

Page 52​

DICOM PS3.3 2020a - Information Object Definitions​

C.36.2.2.8.1.1. Parallel RT Beam Delimiter Device Orientation Label Code ...........................................

1609​

C.36.2.2.8.1.2. Parallel RT Beam Delimiter Boundaries .....................................................................

1610​

C.36.2.2.8.1.3. Number of Parallel RT Beam Delimiters ....................................................................

1610​

C.36.2.2.8.1.4. RT Beam Limiting Device Proximal Distance and RT Beam Limiting Device Distal Distance ..

1610​

C.36.2.2.9. RT Beam Limiting Device Opening Macro ...............................................................................

1611​

C.36.2.2.9.1. RT Beam Limiting Device Opening Attribute Descriptions ....................................................

1612​

C.36.2.2.9.1.1. Geometric Value Attributes .....................................................................................

1612​

C.36.2.2.9.1.2. RT Beam Delimiter Element Positions .......................................................................

1612​

C.36.2.2.9.1.3. RT Beam Delimiter Geometry .................................................................................

1612​

C.36.2.2.10. Wedges Definition Macro ...................................................................................................

1613​

C.36.2.2.10.1. Wedges Definition Macro Attribute Description ................................................................

1613​

C.36.2.2.10.1.1. Radiation Beam Wedge Orientation and Radiation Beam Wedge Angle .........................

1613​

C.36.2.2.11. Wedge Positions Macro ....................................................................................................

1614​

C.36.2.2.11.1. Wedge Positions Macro Attribute Descriptions .................................................................

1616​

C.36.2.2.11.1.1. Radiation Beam Wedge Thin Edge Distance ............................................................

1616​

C.36.2.2.12. Compensators Definition Macro ..........................................................................................

1616​

C.36.2.2.12.1. Compensators Definition Macro Attribute Descriptions ......................................................

1618​

C.36.2.2.12.1.1. Compensators Thickness Map and Tray Distance .....................................................

1618​

C.36.2.2.12.1.2. Compensator Base Plane Offset ............................................................................

1618​

C.36.2.2.12.1.3. Compensator Thickness Data Direction ...................................................................

1619​

C.36.2.2.13. Blocks Definition Macro .....................................................................................................

1619​

C.36.2.2.14. RT Accessory Holders Definition Macro ................................................................................

1621​

C.36.2.2.14.1. RT Accessory Holders Description ................................................................................

1623​

C.36.2.2.15. General Accessories Definition Macro ..................................................................................

1624​

C.36.2.2.16. Boluses Definition Macro ...................................................................................................

1624​

C.36.2.2.16.1. Boluses Definition Macro Attribute Description .................................................................

1625​

C.36.2.2.16.1.1. Conceptual Volume Sequence ...............................................................................

1625​

C.36.2.2.17. RT Tolerance Set Macro ...................................................................................................

1625​

C.36.2.2.17.1. RT Tolerance Set Attribute Description ..........................................................................

1627​

C.36.2.2.17.1.1. Attribute Tolerance Values Sequence .....................................................................

1627​

C.36.2.2.17.1.2. Patient Support Position Tolerance Sequence ..........................................................

1627​

C.36.3. Enhanced RT Series Module ............................................................................................................

1627​

C.36.3.1. Enhanced RT Series Attribute Descriptions ...................................................................................

1628​

C.36.3.1.1. Modality ...........................................................................................................................

1628​

C.36.4. Radiotherapy Common Instance Module .............................................................................................

1628​

C.36.5. RT Physician Intent Module ..............................................................................................................

1629​

C.36.5.1. RT Physician Intent Attribute Descriptions .....................................................................................

1630​

C.36.5.1.1. RT Physician Intent Sequence .............................................................................................

1630​

C.36.5.1.2. RT Protocol Code Sequence ................................................................................................

1630​

C.36.5.1.3. RT Physician Intent Input Instance Sequence ..........................................................................

1630​

C.36.5.1.4. RT Treatment Approach Label .............................................................................................

1630​

C.36.6. RT Enhanced Prescription Module .....................................................................................................

1630​

C.36.6.1. RT Enhanced Prescription Attribute Descriptions ............................................................................

1636​

C.36.6.1.1. Therapeutic Role Type Code Sequence .................................................................................

1636​

C.36.6.1.2. Conceptual Volume Type Code Sequence ..............................................................................

1637​

C.36.6.1.3. Conceptual Volume Sequence .............................................................................................

1637​

C.36.6.1.4. Fraction-based Relationship Sequence ..................................................................................

1637​

C.36.6.1.5. Parent RT Prescription .......................................................................................................

1638​

C.36.6.1.6. Dosimetric Objective Sequence ............................................................................................

1638​

C.36.6.1.7. Dosimetric Objective Evaluation Scope ..................................................................................

1638​

C.36.6.1.8. Patient Equipment Relationship Code Sequence ......................................................................

1639​

C.36.7. RT Treatment Phase Intent Module ....................................................................................................

1639​

C.36.8. RT Segment Annotation Module ........................................................................................................

1639​

C.36.8.1. RT Segment Annotation Attribute Descriptions ...............................................................................

1641​

C.36.8.1.1. RT Segment Annotation Type Code Sequence ........................................................................

1641​

C.36.8.1.2. Segmented RT Accessory Device Sequence ...........................................................................

1641​

C.36.9. Segment Reference Module .............................................................................................................

1642​

C.36.9.1. Segment Reference Attribute Descriptions ....................................................................................

1643​

C.36.9.1.1. Segmentation SOP Instance Reference Sequence ...................................................................

1643​

C.36.9.1.2. Combination Segment Reference Sequence ...........................................................................

1644​

DICOM PS3.3 2020a - Information Object Definitions​

Page 53​

C.36.9.1.3. Conceptual Volumes ..........................................................................................................

1644​

C.36.10. RT Radiation Set Module ................................................................................................................

1644​

C.36.10.1. RT Radiation Set Attribute Descriptions ......................................................................................

1646​

C.36.10.1.1. RT Radiation Set Intent .....................................................................................................

1646​

C.36.10.1.2. RT Radiation Sequence ....................................................................................................

1646​

C.36.10.1.3. Treatment Position Groups ................................................................................................

1646​

C.36.10.1.4. Intended Number of Fractions and Radiation Fraction Pattern Macro ..........................................

1646​

C.36.11. RT Dose Contribution Module ..........................................................................................................

1647​

C.36.11.1. RT Dose Contribution Attribute Description ..................................................................................

1649​

C.36.11.1.1. Meterset to Dose Mapping Sequence ...................................................................................

1649​

C.36.11.1.2. Conceptual Volume Sequence ............................................................................................

1650​

C.36.11.1.3. Primary Dose Value Indicator .............................................................................................

1650​

C.36.11.1.4. Radiation Dose Source to External Contour Distance ..............................................................

1650​

C.36.11.1.5. Radiation Dose Value .......................................................................................................

1650​

C.36.12. RT Delivery Device Common Module ................................................................................................

1650​

C.36.12.1. RT Delivery Device Common Module Attribute Descriptions ............................................................

1651​

C.36.12.1.1. Equipment Frame of Reference UID ....................................................................................

1651​

C.36.12.1.2. Equipment Frame of Reference Description ..........................................................................

1651​

C.36.12.2. Well-known Frame of Reference For Equipment ...........................................................................

1651​

C.36.12.2.1. IEC 61217 Fixed Reference System Frame of Reference .........................................................

1651​

C.36.12.2.2. Standard Robotic-Arm Coordinate System Frame of Reference .................................................

1652​

C.36.13. RT Radiation Common Module ........................................................................................................

1653​

C.36.13.1. RT Radiation Common Attribute Descriptions ...............................................................................

1654​

C.36.13.1.1. Radiotherapy Procedure Technique Sequence ......................................................................

1654​

C.36.13.1.2. RT Treatment Position Macro .............................................................................................

1654​

C.36.13.1.3. Treatment Time Limit ........................................................................................................

1654​

C.36.13.1.4. Treatment Machine Special Mode Sequence .........................................................................

1654​

C.36.14. C-Arm Photon-Electron Delivery Device Module ..................................................................................

1654​

C.36.15. C-Arm Photon-Electron Beam Module ...............................................................................................

1655​

C.36.15.1. C-Arm Photon-Electron Beam Attribute Description .......................................................................

1656​

C.36.15.1.1. Source Roll Angle ............................................................................................................

1656​

C.36.15.1.2. RT Beam Limiting Device Angle ..........................................................................................

1656​

C.36.16. Tomotherapeutic Delivery Device Module ..........................................................................................

1656​

C.36.17. Tomotherapeutic Beam Module .......................................................................................................

1657​

C.36.17.1. Tomotherapeutic Leaf Closed and Open Durations ........................................................................

1658​

C.36.18. Robotic-Arm Delivery Device Module ................................................................................................

1659​

C.36.19. Robotic-Arm Path Module ...............................................................................................................

1660​

D. Codes and Controlled Terminology (Informative) .................................................................................................

1663​

E. Explanation of Patient Orientation (Normative) ....................................................................................................

1665​

F. Basic Directory Information Object Definition (Normative) ......................................................................................

1667​

F.1. Scope of the Basic Directory Information IOD ...............................................................................................

1667​

F.2. Basic Directory IOD Overview ....................................................................................................................

1668​

F.2.1. Basic Directory IOD Organization .........................................................................................................

1668​

F.2.2. Example of A Directory ......................................................................................................................

1670​

F.2.2.1. Illustration of the Overall Directory Organization ...............................................................................

1670​

F.2.2.2. Example of a DICOMDIR File Structure ..........................................................................................

1671​

F.3. Basic Directory IOD .................................................................................................................................

1672​

F.3.1. Module Table ...................................................................................................................................

1672​

F.3.2. Modules of the Basic Directory Information Object ...................................................................................

1673​

F.3.2.1. File-set Identification Module ........................................................................................................

1673​

F.3.2.2. Directory Information Module ........................................................................................................

1673​

F.4. Basic Directory IOD Information Model ........................................................................................................

1677​

F.5. Definition of Specific Directory Records .......................................................................................................

1679​

F.5.1. Patient Directory Record Definition .......................................................................................................

1680​

F.5.2. Study Directory Record Definition ........................................................................................................

1681​

F.5.3. Series Directory Record Definition ........................................................................................................

1681​

F.5.4. Image Directory Record Definition ........................................................................................................

1682​

F.5.5. Standalone Overlay Directory Record Definition ......................................................................................

1682​

F.5.6. Standalone Modality LUT Directory Record Definition ..............................................................................

1682​

F.5.7. Standalone VOI LUT Directory Record Definition ....................................................................................

1682​

Page 54​

DICOM PS3.3 2020a - Information Object Definitions​

F.5.8. Standalone Curve Directory Record Definition ........................................................................................

1682​

F.5.9. Topic Directory Record Definition .........................................................................................................

1682​

F.5.10. Visit Directory Record Definition .........................................................................................................

1683​

F.5.11. Results Directory Record Definition ....................................................................................................

1683​

F.5.12. Interpretation Directory Record Definition .............................................................................................

1683​

F.5.13. Study Component Directory Record Definition ......................................................................................

1683​

F.5.14. Print Queue Directory Record Definition ..............................................................................................

1683​

F.5.15. Film Session Directory Record Definition .............................................................................................

1683​

F.5.16. Film Box Directory Record Definition ...................................................................................................

1683​

F.5.17. Basic Image Box Directory Record Definition ........................................................................................

1683​

F.5.18. Stored Print Directory Record Definition ...............................................................................................

1683​

F.5.19. RT Dose Directory Record Definition ...................................................................................................

1683​

F.5.20. RT Structure Set Directory Record Definition ........................................................................................

1684​

F.5.21. RT Plan Directory Record Definition ....................................................................................................

1684​

F.5.22. RT Treatment Record Directory Record Definition .................................................................................

1685​

F.5.23. Presentation State Directory Record Definition ......................................................................................

1685​

F.5.24. Waveform Directory Record Definition .................................................................................................

1686​

F.5.25. SR Document Directory Record Definition ............................................................................................

1687​

F.5.26. Key Object Document Directory Record Definition .................................................................................

1688​

F.5.27. Spectroscopy Directory Record Definition ............................................................................................

1689​

F.5.28. Raw Data Directory Record Definition .................................................................................................

1690​

F.5.29. Registration Directory Record Definition ..............................................................................................

1690​

F.5.30. Fiducial Directory Record Definition ....................................................................................................

1691​

F.5.31. Hanging Protocol Directory Record Definition .......................................................................................

1691​

F.5.32. Encapsulated Document Directory Record Definition ..............................................................................

1692​

F.5.33. HL7 Structured Document Directory Record Definition ............................................................................

1693​

F.5.34. Real World Value Mapping Directory Record Definition ...........................................................................

1693​

F.5.35. Stereometric Relationship Directory Record Definition ............................................................................

1694​

F.5.36. Palette Directory Record Definition .....................................................................................................

1694​

F.5.37. Implant Directory Record Definition .....................................................................................................

1694​

F.5.38. Implant Assembly Directory Record Definition .......................................................................................

1695​

F.5.39. Implant Group Directory Record Definition ...........................................................................................

1695​

F.5.40. Plan Directory Record Definition ........................................................................................................

1696​

F.5.41. Measurement Directory Record Definition ............................................................................................

1696​

F.5.42. Surface Directory Record Definition ....................................................................................................

1696​

F.5.43. Surface Scan Mesh Directory Record Definition ....................................................................................

1697​

F.5.44. Tractography Results Directory Record Definition ..................................................................................

1697​

F.5.45. Content Assessment Results Directory Record Definition ........................................................................

1698​

F.5.46. Radiotherapy Directory Record Definition .............................................................................................

1698​

F.6. Special Directory Records .........................................................................................................................

1699​

F.6.1. Private Directory Record Definition .......................................................................................................

1699​

F.6.2. Multi-referenced File Directory Record Definition .....................................................................................

1699​

F.7. Icon Image Key Definition .........................................................................................................................

1699​

G. Integration of Modality Worklist and Modality Performed Procedure Step in the Original DICOM Standard (Informative) .....

1701​

H. Retired Composite Information Object Definitions (Normative) (Retired) ...................................................................

1703​

I. Retired Modules (Normative) (Retired) ................................................................................................................

1705​

J. Waveforms (Informative) .................................................................................................................................

1707​

K. SR Encoding Example (Informative)

..................................................................................................................

1709​

L. Mammography CAD (Informative) .....................................................................................................................

1711​

M. Chest CAD (Informative) ................................................................................................................................

1713​

N. Explanation of Grouping Criteria for Multi-frame Functional Group IODs (Informative) .................................................

1715​

O. Clinical Trial Identification Workflow Examples (Informative) ..................................................................................

1717​

DICOM PS3.3 2020a - Information Object Definitions​

Page 55​

List of Figures​

5.1-1. Entity Convention .......................................................................................................................................

103​

5.1-2. Relationship Convention ..............................................................................................................................

103​

6-1. Major Structures of DICOM Information Model ....................................................................................................

107​

7-1a. DICOM Model of the Real World ....................................................................................................................

111​

7-1b. DICOM Model of the Real World - PRINT .........................................................................................................

112​

7-2b. DICOM Information Model - PRINT .................................................................................................................

112​

7-2c. DICOM Information Model - RADIOTHERAPY ..................................................................................................

113​

7-2d. DICOM Information Model - IMPLANT TEMPLATES ..........................................................................................

113​

7-3. Model of the Real World for the Purpose of Modality-IS Interface ............................................................................

114​

7.5-1. Extension of the Real World Model with Concatenations and Dimensions ..............................................................

120​

7.6-1. DICOM Model of the Real World - Clinical Trials and Research ...........................................................................

121​

7.9-1. DICOM Model of the Real World - Specimens ..................................................................................................

123​

7.11-1. DICOM Model of the Real World - Unified Procedure Step ................................................................................

124​

7.12-1. DICOM Model of the Real World - Display System ..........................................................................................

125​

7.12-2. Display Subsystem Composition in the Display System IOD ..............................................................................

126​

7.13-1. DICOM Model of the Real World - Hanging Protocol ........................................................................................

126​

7.13-2. DICOM Model of the Real World - Color Palette ..............................................................................................

127​

7.13-3. DICOM Model of the Real World - Implant Templates ......................................................................................

127​

7.13.4-1. DICOM Model of the Real World - Protocol Storage ......................................................................................

128​

7.13.5-1. DICOM Model of the Real World - Approval .................................................................................................

128​

7.14-1. DICOM Model of the Real World - Radiotherapy .............................................................................................

129​

7.14-2. RT Treatment Phase, RT Treatment Session, RT Treatment Fraction .................................................................

132​

7.14-3. Partial RT Treatment Fraction and Resumption ...............................................................................................

132​

10.7.1.3-1. Example of Pixel Spacing Value Order .....................................................................................................

156​

10.34-1. Conceptual Volume References .................................................................................................................

186​

10.34-2. Conceptual Volume Combination References ...............................................................................................

187​

10.34.1.1-1. Conceptual Volume Example of Union of Disjoint Volumes .........................................................................

190​

10.34.1.1-2. Conceptual Volume Example of Union of Non-disjoint Volumes ...................................................................

190​

10.34.1.1-3. Conceptual Volume Example of Intersection and Negation .........................................................................

191​

10.34.1.1-4. Conceptual Volume Example of Intersection and Union .............................................................................

191​

10.34.1.1-5. Conceptual Volume Example of Intersection of Non-disjunct Volumes ..........................................................

192​

10.34.1.1-6. Conceptual Volume Example of Intersection of Non-disjunct Volumes ..........................................................

192​

A.1-1. DICOM Composite Instance IOD Information Model ..........................................................................................

202​

A.34.3-1. 12-Lead ECG Example (Informative) .........................................................................................................

288​

A.36-1. Relationships between Enhanced MR IODs ...................................................................................................

334​

A.44.2-1. Hanging Protocol IOD E-R Model ..............................................................................................................

351​

A.58.2-1. Color Palette IOD E-R Model ...................................................................................................................

377​

A.59-1. Types of 3D Ultrasound Source and Derived Images (Informative) .....................................................................

378​

A.61-1. Generic Implant Template IOD Information Model ...........................................................................................

386​

A.62-1. Implant Assembly Template IOD Information Model ........................................................................................

387​

A.63-1. Implant Template Group IOD Information Model .............................................................................................

388​

A.82.2.2-1. CT Defined Procedure Protocol IOD E-R Model .........................................................................................

420​

A.82.3.3.2-1. Protocol Approval IOD E-R Model ........................................................................................................

421​

A.86.1.1.1-1. RT Second Generation IOD Information Model .......................................................................................

428​

all feet first prone ................................................................................................................................................

485​

C.7.1.4-2. Example of Subject Relative Position in Image and differing Patient Position for group of 2 mice head-to-head ........

486​

C.7.1.4-3. Example of Subject Relative Position in Image and overlapping narrow field of view group of 2 mice head-to-head ....

487​

C.7.2-1. Functions of Physicians ............................................................................................................................

490​

C.7.3.1.1.2-1. Representation of the Eight Different Patient Positions on the X-Ray Table ..................................................

502​

C.7.3.1.1.2-2. Example of Right First-Prone (RFP) Patient Position Relative to the Gantry and Table for a Small Animal ..........

503​

C.7.6.3.1.7-1. Example of Pixel Size and Aspect Ratio ...............................................................................................

531​

C.7.6.4b-1. X-Ray beam intensity vs. Contrast/Bolus Ingredient Opaque ........................................................................

535​

C.7.6.10-1. Example of TID Offset ..........................................................................................................................

541​

C.7-1.

Rectangular Display Shutter (1:1 aspect ratio image) ........................................................................................

544​

C.7-2.

Rectangular Display Shutter (2:1 aspect ratio images as they would appear before interpolation for display) ................

544​

C.7-3.

Circular Display Shutter (1:1 aspect ratio image) ..............................................................................................

545​