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DICOM PS3.3 2020a - Information Object Definitions​

Page 1551​

Attribute Name​

Tag​

Description​

 

>>Luminance Value​

(0028,701F)​ Luminance in candelas per square meter (cd/m2) corresponding to the DDL​

 

 

Value.​

 

 

>Luminance Response​

(0028,7020)​ User defined text to describe the user defined target luminance curve.​

Description​

 

 

 

 

>CIExy White Point​

(0028,7018)​ A single measured White Point recorded for the Display Subsystem.​

 

 

The white point is recorded as a CIE xy chromaticity with two dimensionless​

 

 

floating point values where the first is the x value and the second is the y​

 

 

value.​

 

 

>Reflected Ambient Light​

(2010,0160)​ Reflected ambient light in candelas per square meter (cd/m2) when the​

 

 

measurements were taken.​

 

>Ambient Light Value Source​

(0028,7025)​ Source of the reflected ambient light value.​

 

 

 

Enumerated Values:​

 

 

 

DEFAULT​ a configured default value was used.​

 

 

 

MEASURED​thevaluewasmeasuredatthetimeoftheothermeasurements.​

 

 

PROVIDED​the value was provided by an external source.​

 

 

 

Required if Reflected Ambient Light (2010,0160) is present.​

 

C.32.2.1 Display Function Type​

 

 

Enumerated Values for Display Function Type (0028,7019):​

 

 

GSDF​

Grayscale Display Function; see PS3.14.​

 

 

CIELAB​

See CIE 1976 (L*,a*,b*) and CIELab Color Space by Gernot Huffman 1948.​

 

GAMMA​

Luminance has a power law response curve.​

 

 

LINEAR​

Luminance has a linear response curve.​

 

 

LOG10​

Luminance has a logarithmic response curve​

 

 

SRGB​

See "A Standard Default Color Space for the Internet - sRGB" - http://www.w3.org/Graphics/Color/sRGB.​

USER_DEFINED​Points of the luminance curve are defined by the user.​

 

C.32.3 QA Results Module​

 

 

This Module records the latest results of QA activities, such as calibration, performed on the Display Subsystems.​

 

 

 

Table C.32.3-1. QA Results Module Attributes​

 

Attribute Name​

Tag​

Description​

 

QA Results Sequence​

(0028,700F)​

Results of QA activities.​

 

 

 

 

Exactly one Item shall be included for each Display​

 

 

 

Subsystem present in the Display System.​

 

>Display Subsystem ID​

(0028,7003)​

The Display Subsystem ID of the Item in the Display​

 

 

 

SubsystemSequence(0028,7023)towhichtheseresults​

 

 

 

apply.​

 

>Display Subsystem QA Results​

(0028,7010)​

Results of QA activities for the identified Display​

Sequence​

 

 

Subsystem.​

 

Zero or more Items shall be included in this Sequence.​

- Standard -​

Page 1552​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

 

Tag​

Description​

>>Configuration ID​

 

(0028,700B)​

TheConfigurationIDoftheItemintheDisplaySubsystem​

 

 

 

Configuration Sequence (0028,700A) under which the​

 

 

 

QA was performed.​

 

 

 

A given Configuration ID value shall not appear more​

 

 

 

than once in this Sequence.​

>>Configuration QA Results Sequence​

(0028,7011)​

Results of QA activities for the identified Display​

 

 

 

Subsystem in the identified configuration​

>>>DisplayCalibrationResultSequence​

(0028,7016)​

The most recent calibration result.​

 

 

 

Zero or one Item shall be included in this Sequence.​

>>>>IncludeTableC.32.3.1-1“DisplayQAResultContextMacroAttributes”​

>>>>Luminance Characteristics ID​

 

(0028,7009)​

The Luminance Characteristics ID of the Item in the​

 

 

 

TargetLuminanceCharacteristicsSequence(0028,7008)​

 

 

 

that represents the target values used during this​

 

 

 

calibration.​

>>>Visual Evaluation Result Sequence​

(0028,7015)​

The most recent visual evaluation result.​

 

 

 

Zero or one Item shall be included in this Sequence.​

>>>>IncludeTableC.32.3.1-1“DisplayQAResultContextMacroAttributes”​

>>>>Include Table C.32.3.2-1 “Visual Evaluation Result Macro Attributes”​

>>>Luminance Uniformity Result​

 

(0028,7027)​

The most recent luminance uniformity result.​

Sequence​

 

 

Zero or one Item shall be included in this Sequence.​

 

 

 

>>>>IncludeTableC.32.3.1-1“DisplayQAResultContextMacroAttributes”​

>>>>Include Table C.32.3.3-1 “Luminance Uniformity Result Macro​

 

Attributes”​

 

 

 

>>>Luminance Result Sequence​

 

(0028,7024)​

The most recent luminance result.​

 

 

 

Zero or one Item shall be included in this Sequence.​

>>>>IncludeTableC.32.3.1-1“DisplayQAResultContextMacroAttributes”​

>>>>Include Table C.32.3.4-1 “Luminance Result Macro Attributes”​

Note​

Several Result Sequences in the above table are permitted to contain zero Items. This means that no valid "most recent​ result" exists. This may be because such results have never been generated, or because the system considers that the most​ recent result is no longer valid (perhaps due to age or intervening equipment changes). Specifying such policy is outside​ the scope of DICOM.​

C.32.3.1 Display QA Result Context Macro​

This Macro records the context for a set of collected display QA results: when they were produced, the person/device that produced​ them.​

Table C.32.3.1-1. Display QA Result Context Macro Attributes​

Attribute Name​

Tag​

Description​

Performed Procedure Step Start​

(0040,4050)​

Date and Time at which the QA job that generated the results started.​

DateTime​

 

 

Performed Procedure Step End​

(0040,4051)​

Date and Time at which the QA job that generated the results ended.​

DateTime​

 

 

- Standard -​

 

DICOM PS3.3 2020a - Information Object Definitions​

Page 1553​

Attribute Name​

Tag​

 

Description​

 

ActualHumanPerformerSequence​

(0040,4035)​

Human performer(s) responsible for the results.​

 

 

 

Zero or more Items shall be included in this Sequence.​

 

>HumanPerformerCodeSequence​

(0040,4009)​

Coded identification of the human performer.​

 

 

 

Only a single Item shall be included in this Sequence.​

 

>>Include Table 8.8-1 “Code Sequence Macro Attributes”​ No Baseline Context ID is defined.​

 

>Human Performer's Name​

(0040,4037)​

Name of the human performer.​

 

>Human Performer's Organization​

(0040,4036)​

Organizationtowhichthehumanperformerisaccountablefortheresults.​

MeasurementEquipmentSequence​

(0028,7012)​

Describes the measurement equipment (if any) used in deriving the​

 

 

results. This may describe standalone equipment or may re-iterate​

 

 

details of equipment built into the Display System.​

 

 

 

Zero or more Items shall be included in this Sequence.​

 

>Measurement Functions​

(0028,7013)​

Measurement functions of the measurement equipment.​

 

 

 

Enumerated Values:​

 

 

 

PHOTOMETER​ measurement of light intensity​

 

 

 

COLORIMETER​ measurement of energy along the visible spectrum​

 

 

ILLUMINOMETER​measurement of illumination (ambient luminance)​

 

 

Thismulti-valuedAttributeshallcontainatmostoneofeachenumerated​

 

 

value. When multiple values are present, the equipment is capable of​

 

 

performing multiple functions.​

 

>Measured Characteristics​

(0028,7026)​

Characteristic(s) which are measured by the measurement equipment.​

 

 

Enumerated Values:​

 

 

 

UNIFORMITY​

Luminance uniformity​

 

 

 

LUMINANCE​

Luminance​

 

 

 

CHROMATICITY​Chromaticity​

 

 

 

ILLUMINANCE​ Illuminance​

 

 

 

Thismulti-valuedAttributeshallcontainatmostoneofeachenumerated​

 

 

value. When multiple values are present, the equipment is capable of​

 

 

measuring multiple characteristics.​

 

>Measurement Equipment Type​

(0028,7014)​

Type of measurement equipment.​

 

 

 

See Section C.32.1.2 for Enumerated Values.​

 

>Manufacturer​

(0008,0070)​

Manufacturer of the measurement equipment.​

 

>Manufacturer's Model Name​

(0008,1090)​

Manufacturer's model name of the measurement equipment.​

>Device Serial Number​

(0018,1000)​

The measurement equipment serial number.​

 

>DateTime of Last Calibration​

(0018,1202)​

Date and time of the last calibration of the measurement equipment.​

 

 

Note​

 

 

This is likely different than the date of the calibration of the​

Display System itself.​

C.32.3.2 Visual Evaluation Result Macro​

This Macro records the result of a Visual Evaluation QA task by a human for a Display System.​

- Standard -​

Page 1554​ DICOM PS3.3 2020a - Information Object Definitions​

Table C.32.3.2-1. Visual Evaluation Result Macro Attributes​

Attribute Name​

Tag​

Description​

VisualEvaluationTestSequence​

(0028,7028)​

Test Results of a visual evaluation of the display subsystem output.​

 

 

Mayincludeevaluationofmultipletestpatternimages,aslongasallItems​

 

 

in this Sequence are generated in a single QA test session.​

 

 

One or more Items shall be included in this Sequence.​

>Test Result​

(0028,7029)​

Result of a test.​

 

 

Enumerated Values:​

 

 

PASS​Evaluated as acceptable​

 

 

FAIL​ Evaluated as not acceptable​

 

 

SKIP​Not evaluated​

>Test Result Comment​

(0028,702A)​

User comment on the result or performance of the test.​

 

 

Mightincludescoringvaluesthatarenotintendedtobemachinereadable.​

>Test Pattern Code Sequence​

(0028,702C)​

Coded identification of the test pattern presented for visual evaluation.​

 

 

Only a single Item shall be included in this Sequence.​

>>Include Table 8.8-1 “Code Sequence Macro Attributes”​BCID 8301 “Test Pattern Codes”.​

>Referenced Image Sequence​

(0008,1140)​

Reference to the image instance containing the test pattern presented for​

 

 

visual evaluation.​

 

 

Only a single Item shall be included in this Sequence.​

 

 

Required if Test Pattern Code Sequence (0028,702C) is absent in this​

 

 

Item. May be present otherwise.​

>>Test Image Validation​

(0028,702B)​

Indication of whether the test image was validated as matching the​

 

 

characteristics of the display system (e.g., resolution and bit depth).​

 

 

Enumerated Values:​

 

 

MATCHED​ the test image was determined to match​

 

 

UNMATCHED​the test image was not determined to match​

Visual Evaluation Method Code​

(0028,702E)​

Coded description of the methodology used during this visual evaluation.​

Sequence​

 

Only a single Item shall be included in this Sequence.​

 

 

>Include Table 8.8-1 “Code Sequence Macro Attributes”​BCID 8300 “Visual Evaluation Methods”.​

C.32.3.3 Luminance Uniformity Result Macro​

This Macro records the result of a Luminance Uniformity QA task for a Display Subsystem.​

- Standard -​

 

DICOM PS3.3 2020a - Information Object Definitions​

Page 1555​

Table C.32.3.3-1. Luminance Uniformity Result Macro Attributes​

 

Attribute Name​

Tag​

Description​

 

Number of Luminance Points​

(0028,701B)​

The number of luminance measurements recorded.​

 

 

 

ThenumberdependsonthetestpatternspecifiedintheMeasurementPattern​

 

 

Code Sequence (0028,702D).​

 

 

 

Note​

 

 

 

Most commonly the value is 5, which is a total of the locations on the​

 

 

faceplate of the Display Device (center and four corners) as defined​

 

 

by the TG18-UNL80 or TG18-UNL10 test pattern.​

 

Measurement Pattern Code​

(0028,702D)​

Definition of the locations on the display device at which luminance​

Sequence​

 

measurements were taken. One measurement is recorded for each location.​

>Include Table 8.8-1 “Code Sequence Macro​

BCID 8302 “Measurement Pattern Codes”.​

 

Attributes”​

 

 

 

DDL Value​

(0028,7017)​

The integer Digital Driving Level (DDL) at which the luminance values were​

 

 

measured.​

 

 

 

Note​

 

 

 

Luminance Uniformity measurement uses the same DDL value for​

 

 

all measurements.​

 

White Point Flag​

(0028,7021)​

Whether white point values were also recorded at each location.​

 

 

Enumerated Values:​

 

 

 

YES​

 

 

 

NO​

 

Luminance Response​

(0028,701C)​

Recorded Luminance Response Values​

 

Sequence​

 

The number of Items shall match the value of Number of Luminance Points​

 

 

 

 

(0028, 701B).​

 

 

 

The Items shall be stored in major row order (from left to right then from top​

 

 

to bottom).​

 

>Luminance Value​

(0028,701F)​

Luminanceincandelaspersquaremeter(cd/m2)atthemeasurementlocation.​

 

 

Note​

 

 

 

Eachmeasuredluminanceincludesbothambientlightandlightfrom​

 

 

the display device.​

 

>CIExy White Point​

(0028,7018)​

White Point at the measurement location,​

 

 

 

The white point is recorded as a CIE xy chromaticity with two dimensionless​

 

 

floatingpointvalueswherethefirstisthexvalueandthesecondistheyvalue.​

Reflected Ambient Light​

(2010,0160)​

Reflected ambient light in candelas per square meter (cd/m2) when the​

 

 

measurements were taken.​

 

Ambient Light Value Source​

(0028,7025)​

Source of the ambient light value.​

 

 

 

Enumerated Values:​

 

DEFAULT​ a configured default value was used.​

MEASURED​the value was measured at the time of the other measurements.​

PROVIDED​the value was provided by an external source.​

- Standard -​

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