cie activities related to image technology jános schanda cie vp techn. virtual environments and...
TRANSCRIPT
CIE Activities related to Image Technology
János Schanda
CIE VP Techn.
Virtual Environments and Imaging Technologies Laboratory
University of Pannonia
CIE Division 1CIE Division 1Vision and ColourVision and Colour
TC 1-27: TC 1-27: Specification of Colour Appearance for Specification of Colour Appearance for Reflective Media and Self-Luminous Display Reflective Media and Self-Luminous Display ComparisonsComparisons
TC 1-44: TC 1-44: Practical Daylight Sources for Practical Daylight Sources for ColorimetryColorimetry
TC 1-57: TC 1-57: Standards on ColorimetryStandards on Colorimetry TC 1-66: TC 1-66: Indoor Daylight IlluminantIndoor Daylight Illuminant TC 1-69: TC 1-69: Colour rendition by white light sourcesColour rendition by white light sources TC 1-70: TC 1-70: Metameric Samples for Indoor Daylight Metameric Samples for Indoor Daylight
EvaluationEvaluation TC 1-72: TC 1-72: Measurement of Appearance NetworkMeasurement of Appearance Network
TC 1-27: TC 1-27: Specification of Colour Specification of Colour Appearance for Reflective Media and Appearance for Reflective Media and Self-Luminous Display ComparisonsSelf-Luminous Display Comparisons
ToR: ToR: To study and make To study and make recommendations for the specification of recommendations for the specification of a colour appearance match between a a colour appearance match between a reflective image and a self-luminous reflective image and a self-luminous display image.display image.
TC 1-44: TC 1-44: Practical Daylight Sources Practical Daylight Sources for Colorimetryfor Colorimetry
1. To intercompare existing daylight 1. To intercompare existing daylight sources for colour measuring instruments sources for colour measuring instruments and colour matching booths. and colour matching booths.
2. On the basis of this intercomparison, to 2. On the basis of this intercomparison, to recommend practical methods for recommend practical methods for simulating daylight illuminants.simulating daylight illuminants.
TC 1-57: TC 1-57: Standards on ColorimetryStandards on Colorimetry
ToR: ToR: To prepare and ISO/CIE Standard(s) To prepare and ISO/CIE Standard(s) that describes that describes 1) the method of calculating CIE tristimulus 1) the method of calculating CIE tristimulus
values and chromaticity coordinates values and chromaticity coordinates 2) a uniform colour space and its associated 2) a uniform colour space and its associated
metrics and metrics and 3) a formula for industrial colour difference 3) a formula for industrial colour difference
evaluationevaluation
TC 1-66: TC 1-66: Indoor Daylight IlluminantIndoor Daylight Illuminant
ToR: ToR: To prepare a CIE recommendation To prepare a CIE recommendation on an Indoor Daylight Illuminant and a on an Indoor Daylight Illuminant and a corresponding Indoor Daylight Source, corresponding Indoor Daylight Source, considering the needs of the partner considering the needs of the partner international organisationsinternational organisations
TC 1-66: TC 1-66: Indoor Daylight IlluminantIndoor Daylight Illuminant
Average Average external external transmission transmission of clear of clear window glass window glass samples for a samples for a nominal 10 nominal 10 mm thickness.mm thickness.
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
300 350 400 450 500 550 600 650 700 750 800
wavelength, nm
tran
sm./
10 m
m
aveTransm.
TC 1-66: TC 1-66: Indoor Daylight IlluminantIndoor Daylight Illuminant Relative Relative
spectral spectral power power distribution distribution of CIE of CIE standard standard illuminant illuminant D65, CIE D65, CIE daylight daylight illuminant illuminant D50 and of D50 and of the the recommendrecommended indoor ed indoor D50 and D50 and D65 D65 illuminants.illuminants.
0
20
40
60
80
100
120
140
300 400 500 600 700 800
wavelength, nm
rel.
sp
. p
ow
er d
istr
ibu
tio
n
D65
D50
ID65
ID50
TC 1-69: TC 1-69: Colour rendition by white Colour rendition by white light sourceslight sources
1.)1.)To agree on some basic criteria for a new To agree on some basic criteria for a new metric (or system of metrics) such that it (or metric (or system of metrics) such that it (or they) could be developed to be scientifically they) could be developed to be scientifically sound, acceptable to lighting industry, and sound, acceptable to lighting industry, and useful. useful. Colour fidelityColour fidelity Colour preferemceColour preferemce Colour discriminationColour discrimination
2.) To solicit, share, and discuss proposals for 2.) To solicit, share, and discuss proposals for new assessment procedures for colour rendition new assessment procedures for colour rendition properties of white light sources. properties of white light sources.
TC 1-69: TC 1-69: Colour rendition by white Colour rendition by white light sourceslight sources
3.) To evaluate proposed assessment 3.) To evaluate proposed assessment procedures with visual experiments and procedures with visual experiments and compatibility with basic criteria (in #1). compatibility with basic criteria (in #1).
4.) To recommend a new metric (or system of 4.) To recommend a new metric (or system of metrics) based on evaluation (in #3).metrics) based on evaluation (in #3).
5.) To prepare a CIE Technical Report on 5.) To prepare a CIE Technical Report on recommended new metric (or system of recommended new metric (or system of metrics), including calculation procedures and metrics), including calculation procedures and justification for recommendation.justification for recommendation.
TC 1-70: TC 1-70: Metameric Samples for Metameric Samples for Indoor Daylight EvaluationIndoor Daylight Evaluation
To investigate the derivation of a set of To investigate the derivation of a set of metameric samples to enable the metameric samples to enable the evaluation of indoor daylight simulatorsevaluation of indoor daylight simulators
A continuation of the activities of TC 1-66: A continuation of the activities of TC 1-66: Indoor Daylight IlluminantIndoor Daylight Illuminant
TC 1-72: TC 1-72: Measurement of Measurement of Appearance Network: MApNetAppearance Network: MApNet
1.) To establish a network of those interested in 1.) To establish a network of those interested in the measurement of visual appearance. the measurement of visual appearance.
2.) The network shall be under the direction and 2.) The network shall be under the direction and guidance of a group of at least four Technical guidance of a group of at least four Technical Leaders each responsible for a particular aspect Leaders each responsible for a particular aspect of the subject. of the subject.
3.) Each Technical Leader shall provide 3.) Each Technical Leader shall provide substantial periodic reports in a form that might substantial periodic reports in a form that might be published. be published.
TC 1-72: TC 1-72: Measurement of Measurement of Appearance Network: MApNetAppearance Network: MApNet
4.) A second Expert Symposium on 4.) A second Expert Symposium on Appearance shall be organised at an Appearance shall be organised at an appropriate time within the next 4 years. appropriate time within the next 4 years.
5.) A database of relevant published work 5.) A database of relevant published work shall be maintained.shall be maintained.
6.) Consideration shall be given to the 6.) Consideration shall be given to the establishment of separate Technical establishment of separate Technical Committees when appropriate.Committees when appropriate.
CIE Division 2CIE Division 2PHYSICAL MEASUREMENT OF PHYSICAL MEASUREMENT OF
LIGHT AND RADIATIONLIGHT AND RADIATION TC 2-28: TC 2-28: Methods of Characterizing Methods of Characterizing
SpectrophotometersSpectrophotometers TC 2-51: TC 2-51: The Calibration of Diode Array The Calibration of Diode Array
SpectrometersSpectrometers TC 2-59: TC 2-59: Characterisation of Imaging Characterisation of Imaging
Luminance Measurement DevicesLuminance Measurement Devices TC 2-60: TC 2-60: Effect of Instrumental Bandpass Effect of Instrumental Bandpass
Function and Measurement Interval on Function and Measurement Interval on Spectral QuantitiesSpectral Quantities
TC 2-28: TC 2-28: Methods of Methods of Characterizing SpectrophotometersCharacterizing Spectrophotometers
Write a CIE report on the characterization Write a CIE report on the characterization of spectrophotometers by means of of spectrophotometers by means of reference materials and other methods, reference materials and other methods, with particular reference to linearity, with particular reference to linearity, wavelength error, stray light, and wavelength error, stray light, and integrating sphere errors.integrating sphere errors.
TC 2-51: TC 2-51: The Calibration of Diode The Calibration of Diode Array SpectrometersArray Spectrometers
To produce a technical report for the To produce a technical report for the calibration of detector array calibration of detector array spectroradiometers spectroradiometers
Diode array and CCD spectrometers suffer Diode array and CCD spectrometers suffer from:from: Stray lightStray light Temperature dependenceTemperature dependence External fibre cable problemsExternal fibre cable problems
TC 2-59: TC 2-59: Characterisation of Characterisation of Imaging Luminance Measurement Imaging Luminance Measurement
DevicesDevices
To prepare a Technical Report on To prepare a Technical Report on methods for the characterisation of methods for the characterisation of imaging luminance measurement devicesimaging luminance measurement devices
TC 2-60: TC 2-60: Effect of Instrumental Effect of Instrumental Bandpass Function and Bandpass Function and
Measurement Interval on Spectral Measurement Interval on Spectral QuantitiesQuantities
To prepare a Technical Report that describes To prepare a Technical Report that describes the effect of instrumental bandpass functions the effect of instrumental bandpass functions and measurement wavelength interval on and measurement wavelength interval on spectrally resolved quantities and to provide spectrally resolved quantities and to provide recommendations on suitable methods to recommendations on suitable methods to minimise the error introduced by instrumental minimise the error introduced by instrumental bandpass functions on spectrally integrated or bandpass functions on spectrally integrated or weighted quantitiesweighted quantities
CIE Divisions 3 to 6CIE Divisions 3 to 6
Division 3: Interior environment and Division 3: Interior environment and lighting designlighting design
Division 4: Lighting and signalling for Division 4: Lighting and signalling for transporttransport
Division 5: Exterior and other lighting Division 5: Exterior and other lighting applicationsapplications
Divsion 6: Photobiology and Divsion 6: Photobiology and photochemistryphotochemistry
Division 8: Image technologyDivision 8: Image technology
CIE D8 publicationsCIE D8 publications TC 8-02: TC 8-02: Colour difference evaluation in imagesColour difference evaluation in images TC 8-07: TC 8-07: Multispectral ImagingMultispectral Imaging TC 8-08: TC 8-08: Testing of Spatial Colour Appearance Testing of Spatial Colour Appearance
ModelsModels TC 8-09: TC 8-09: Archival Colour Imaging Archival Colour Imaging TC 8-10: TC 8-10: Office Lighting for ImagingOffice Lighting for Imaging TC 8-11: TC 8-11: CIECAM02 MathematicsCIECAM02 Mathematics TC 8-12: TC 8-12: Video Compression AssessmentVideo Compression Assessment
CIE D8 publicationsCIE D8 publications
A Colour Appearance Model for Colour Management A Colour Appearance Model for Colour Management Systems: CIECAM02 by TC8-01 CIE 159:2004Systems: CIECAM02 by TC8-01 CIE 159:2004
Chromatic Adaptation Under Mixed Illumination Chromatic Adaptation Under Mixed Illumination Condition When Comparing Softcopy and Hardcopy Condition When Comparing Softcopy and Hardcopy Images by TC8-04 CIE 162:2004Images by TC8-04 CIE 162:2004
Criteria for the Evaluation of Extended-Gamut Colour Criteria for the Evaluation of Extended-Gamut Colour Encodings by TC8-05 CIE 168:2005Encodings by TC8-05 CIE 168:2005
Guidelines for the Evaluation of Gamut Mapping Guidelines for the Evaluation of Gamut Mapping Algorithms by TC8-03 CIE 156:2004Algorithms by TC8-03 CIE 156:2004
The Effects of Fluorescence in the Characterization of The Effects of Fluorescence in the Characterization of Imaging Media by R8-05 CIE 163:2004Imaging Media by R8-05 CIE 163:2004
CIE 159:2004CIE 159:2004 A Colour Appearance Model for A Colour Appearance Model for Colour Management Systems: CIECAM02 by Colour Management Systems: CIECAM02 by
TC8-01TC8-01 A colour appearance model provides a viewing A colour appearance model provides a viewing
condition specific method for transforming tristimulus condition specific method for transforming tristimulus values to and/or from perceptual attribute correlates. values to and/or from perceptual attribute correlates. This document outlines a specific colour appearance This document outlines a specific colour appearance model, CIECAM02, which may be useful for colour model, CIECAM02, which may be useful for colour management applications. This model is based on management applications. This model is based on CIECAM97s colour appearance model and consists of CIECAM97s colour appearance model and consists of a chromatic adaptation transform and equations for a chromatic adaptation transform and equations for computing a set of perceptual attribute correlates. The computing a set of perceptual attribute correlates. The evolution and application of this colour appearance evolution and application of this colour appearance model are presented.model are presented.
CIE 162:2004CIE 162:2004 Chromatic Adaptation Under Mixed Chromatic Adaptation Under Mixed Illumination Condition When Comparing Softcopy Illumination Condition When Comparing Softcopy
and Hardcopy Images by TC8-04 and Hardcopy Images by TC8-04
UUsers often desire to compare hardcopy and softcopy sers often desire to compare hardcopy and softcopy images using rapid successive binocular observations. images using rapid successive binocular observations. The focus of this report is to determine how colour The focus of this report is to determine how colour imaging experts can best accommodate the desires and imaging experts can best accommodate the desires and practices of these more casual observers. It shows that practices of these more casual observers. It shows that accounting for mixed and incomplete chromatic accounting for mixed and incomplete chromatic adaptation produces more accurate results in colour adaptation produces more accurate results in colour appearance than not accounting for them. It includes a appearance than not accounting for them. It includes a mathematical model for chromatic adaptation and mathematical model for chromatic adaptation and provides appropriate parameters for the chromatic provides appropriate parameters for the chromatic adaptation model under such viewing conditions. adaptation model under such viewing conditions.
CIE 168:2005CIE 168:2005Criteria for the Evaluation of Extended-Criteria for the Evaluation of Extended-Gamut Colour Encodings by TC8-05Gamut Colour Encodings by TC8-05
One set of applications that was identified One set of applications that was identified by the committee required the use of by the committee required the use of extended-gamut colour encodings. This extended-gamut colour encodings. This document defines a set of objective document defines a set of objective metrics for evaluating the characteristics of metrics for evaluating the characteristics of output-referred extended-gamut colour output-referred extended-gamut colour encodings. Detailed metrics have been encodings. Detailed metrics have been developed to evaluate a number of developed to evaluate a number of important attributes of extended-gamut important attributes of extended-gamut colour encodings. colour encodings.
CIE 168:2005CIE 168:2005Criteria for the Evaluation of Extended-Criteria for the Evaluation of Extended-Gamut Colour Encodings by TC8-05Gamut Colour Encodings by TC8-05
These criteria include: These criteria include: gamut volume characteristics, gamut volume characteristics, colour quantization characteristics, colour quantization characteristics, hue constancy when applying non-linear tone hue constancy when applying non-linear tone
scale modifications to RGB colour values, scale modifications to RGB colour values, complexity of transformation required to and complexity of transformation required to and
from typical standard spaces (sRGB, ICC from typical standard spaces (sRGB, ICC PCS, etc.). PCS, etc.).
CIE 168:2005CIE 168:2005Criteria for the Evaluation of Extended-Criteria for the Evaluation of Extended-Gamut Colour Encodings by TC8-05Gamut Colour Encodings by TC8-05
The relative importance of the individual metrics The relative importance of the individual metrics will vary on an application-by-application basis. will vary on an application-by-application basis. As a result, the committee concluded that the As a result, the committee concluded that the actual evaluation of candidate colour encodings actual evaluation of candidate colour encodings for use in particular applications should be left to for use in particular applications should be left to other standards bodies that are more closely other standards bodies that are more closely aligned with the relevant industry segments, and aligned with the relevant industry segments, and therefore would be better able to define the therefore would be better able to define the appropriate application-dependent requirements. appropriate application-dependent requirements.
CIE 163:2004CIE 163:2004 The Effects of Fluorescence in the The Effects of Fluorescence in the
Characterization of Imaging Media by R8-05 Characterization of Imaging Media by R8-05 TThe addition of fluorescence to either the inks or he addition of fluorescence to either the inks or
the substrate greatly increases the level of the substrate greatly increases the level of uncertainty in instrumental readings of the uncertainty in instrumental readings of the optical properties of printed images. CIE 76-optical properties of printed images. CIE 76-1988 "Intercomparison on measurement of 1988 "Intercomparison on measurement of (total) spectral radiance factor of luminescent (total) spectral radiance factor of luminescent specimens" shows that even research and specimens" shows that even research and standards laboratories experience a degradation standards laboratories experience a degradation in their reproducibility of up to one order of in their reproducibility of up to one order of magnitude (10x), in the readings of total spectral magnitude (10x), in the readings of total spectral radiance factor of strongly coloured, fluorescent radiance factor of strongly coloured, fluorescent materials. materials.
CIE 163:2004CIE 163:2004 The Effects of Fluorescence in the The Effects of Fluorescence in the
Characterization of Imaging Media by R8-05Characterization of Imaging Media by R8-05 This report contains results from a study of the This report contains results from a study of the
measurement of total spectral radiance factor of digital measurement of total spectral radiance factor of digital halftone printing over a range of substrates exhibiting halftone printing over a range of substrates exhibiting various levels of fluorescence. Colorimetric properties various levels of fluorescence. Colorimetric properties were computed for CIE Illuminant D50 when the UV were computed for CIE Illuminant D50 when the UV component was included and when the UV component component was included and when the UV component was excluded from the measurement source. was excluded from the measurement source.
The results indicate and quantify that the fluorescence of The results indicate and quantify that the fluorescence of the substrate can be measured in both solid ink areas the substrate can be measured in both solid ink areas and halftone ink area with the effect being far larger in and halftone ink area with the effect being far larger in the latter. the latter.
CIE 163:2004CIE 163:2004 The Effects of Fluorescence in the The Effects of Fluorescence in the
Characterization of Imaging Media by R8-05Characterization of Imaging Media by R8-05
The magnitude of the CIELAB colour differences The magnitude of the CIELAB colour differences indicate that a significant lack of reproducibility indicate that a significant lack of reproducibility may be experienced between two imaging may be experienced between two imaging centers who attempt to apply colour centers who attempt to apply colour management principles to their individual management principles to their individual measurements of the same image printed on measurements of the same image printed on fluorescent substrates or between two fluorescent substrates or between two laboratories who attempt to quantify the colour laboratories who attempt to quantify the colour differences between images printed on differences between images printed on fluorescent stock and measured using fluorescent stock and measured using instruments with different sources.instruments with different sources.
CIE 163:2004CIE 163:2004 The Effects of Fluorescence in the The Effects of Fluorescence in the
Characterization of Imaging Media by R8-05Characterization of Imaging Media by R8-05
The preliminary reports of CIE TC 1-44 The preliminary reports of CIE TC 1-44 "Practical daylight simulators for "Practical daylight simulators for colorimetry" have shown that significant colorimetry" have shown that significant variability exists among instruments variability exists among instruments claiming daylight simulations and an even claiming daylight simulations and an even greater difference between instruments greater difference between instruments with UV-rich pulsed xenon lamps and with UV-rich pulsed xenon lamps and those with UV-poor incandescent lamps. those with UV-poor incandescent lamps.
Availability of CIE Publications:Availability of CIE Publications:
CIE Technical Reports and Standards are CIE Technical Reports and Standards are available electronically or printed atavailable electronically or printed at
http://www.techstreet.com/ciegate.tmplhttp://www.techstreet.com/ciegate.tmpl
TC 8-02: TC 8-02: Colour difference Colour difference evaluation in imagesevaluation in images
To study, develop and standardize To study, develop and standardize methods to derive colour differences for methods to derive colour differences for images.images.
TC 8-07: TC 8-07: Multispectral ImagingMultispectral Imaging
To study, develop and recommend To study, develop and recommend encoding techniques and data formats for encoding techniques and data formats for the exchange of multispectral images, and the exchange of multispectral images, and to provide test procedures for the to provide test procedures for the evaluation of multispectral imaging evaluation of multispectral imaging systemssystems
Recent demonstrations at a meeting in Recent demonstrations at a meeting in DarmstadtDarmstadt
TC 8-08: TC 8-08: Testing of Spatial Colour Testing of Spatial Colour Appearance ModelsAppearance Models
To design, implement and report the To design, implement and report the results of a psychophysical test comparing results of a psychophysical test comparing the output of spatial colour appearance the output of spatial colour appearance models (including Retinex, MOM and models (including Retinex, MOM and iCAM) for high dynamic range still imagesiCAM) for high dynamic range still images
TC 8-09: TC 8-09: Archival Colour ImagingArchival Colour Imaging
To recommend a set of techniques for the To recommend a set of techniques for the accurate capture, encoding and long term accurate capture, encoding and long term preservation of colour descriptions of preservation of colour descriptions of digital images that are either born digital or digital images that are either born digital or the result of digitizing 2D static physical the result of digitizing 2D static physical objects including documents, maps, objects including documents, maps, photographic materials and paintingsphotographic materials and paintings
Some images of cultural Some images of cultural heritageheritage
Madonna on the Madonna on the rocks, Louvre.rocks, Louvre. Two artefacts from Two artefacts from
the same databasethe same database Van Gogh: BedroomVan Gogh: Bedroom
TC 8-10: TC 8-10: Office Lighting for ImagingOffice Lighting for Imaging
To report on the spectral power distribution and To report on the spectral power distribution and illumination levels used to view images in office illumination levels used to view images in office lighting conditions. The report is to be based on lighting conditions. The report is to be based on empirical researchempirical research
Round robin test under way, circulatingRound robin test under way, circulating Box with LEDs to test spectroradiometerBox with LEDs to test spectroradiometer Paper samples of different amount of whitening agentPaper samples of different amount of whitening agent Request of measuring artificial and natural light Request of measuring artificial and natural light
spectra onspectra on• desk, wall and monitordesk, wall and monitor
TC 8-10: TC 8-10: Office Lighting for Office Lighting for ImagingImaging: personal questions: personal questions
ScopeScope DataData Value RangeValue Range
Individual IdentifierIndividual Identifier Insert users initials and Insert users initials and starting date of starting date of measurement in ISO measurement in ISO format: YYYYMMDDformat: YYYYMMDD
4 letters&8numbers, stat 4 letters&8numbers, stat with Family Name Initial, with Family Name Initial, please!please!
Full name of contact Full name of contact personperson
mailing address:mailing address:
e-mail address:e-mail address:
Phone:Phone:
Fax:Fax:
TC 8-10: TC 8-10: Office Lighting for Office Lighting for ImagingImaging, questions on the , questions on the
instrumentinstrumentPer Measurement DevicePer Measurement Device
Measurement principleMeasurement principle Radiance or irradianceRadiance or irradiance
Spectroradiometer brand, model, Spectroradiometer brand, model, and configurationand configuration
For example: XY Model AB For example: XY Model AB spectroradiometer spectroradiometer
Instrument specifications Instrument specifications (if custom):(if custom):
Wavelength range [nm]Wavelength range [nm]
Wavelength accuracy [nm]Wavelength accuracy [nm]
Wavelength resolution [nm]Wavelength resolution [nm]
Stray light level % Stray light level %
Optical Half Bandwidth (FWHM) Optical Half Bandwidth (FWHM) [nm][nm](FWHM = convolution of input (FWHM = convolution of input and exit slit windows)and exit slit windows)
Noise Equivalent Noise Equivalent radiance/Irradiance radiance/Irradiance Irradiance: watt/m^2Irradiance: watt/m^2
Measurement of LED sources for Measurement of LED sources for this study: day of yearthis study: day of year
Calendar Date Calendar Date
TC 8-10: TC 8-10: Office Lighting for Office Lighting for ImagingImaging, questions on the location, questions on the location
Per OfficePer Office
Measurement day of yearMeasurement day of year Calendar Date in ISO format: Calendar Date in ISO format: YYYY-MM-DDYYYY-MM-DD
Measurement time of dayMeasurement time of day Hour [0000 – 2400]Hour [0000 – 2400]
[i.e.., using a 24 hour clock, [i.e.., using a 24 hour clock, 6:25 p.m. would be 6:25 p.m. would be reported as 1825]reported as 1825]
Measurement geographyMeasurement geography Country, state, city, street Country, state, city, street addressaddress
Unique Office IdentifierUnique Office Identifier Office number, name, or otherOffice number, name, or other
Office Description Office Description A-GA-G
Lighting DescriptionLighting Description Lamp position [overhead/task Lamp position [overhead/task (+type(s) if known)], (+type(s) if known)], natural lighting [Y/N]natural lighting [Y/N]
TC 8-10: TC 8-10: Office Lighting for Office Lighting for ImagingImaging, Test box and components, Test box and components
TC 8-10: TC 8-10: Office Lighting for Office Lighting for ImagingImaging, Results on LED , Results on LED
measurementsmeasurements
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
350 400 450 500 550 600 650 700 750 800
wavelength, nm
rel.
inte
ns
ity
MC-ArchC-Wave
MC-ArchC-Rave
COI-White
COI-Red
SUN
NexPr-White
NexPr-Red
Yaguchi070405 White
Yaguchi070405 Red
TC 8-10: TC 8-10: Office Lighting for ImagingOffice Lighting for Imaging, Results , Results on LED measurementson LED measurements
LaboratoryLaboratoryWhiteWhite RedRed
xx yy Tcc, KTcc, K RaRaLum, Lum, cd/m2cd/m2 xx yy
Lum, Lum, cd/m2cd/m2
GrePGreP 0.3090.309 0.3090.309 69486948 0.6860.686 0.3130.313
NexPressNexPress 0.3100.310 0.3090.309 68776877 8585 45.1945.19 0.6860.686 0.3130.313 4.6174.617
Yaguchi070405Yaguchi070405 AAffternoonternoon 0.3120.312 0.3110.311 67216721 8585 0.6870.687 0.3130.313
YY200703202020YY200703202020 0.3230.323 0.3250.325 59645964 8484 0.6860.686 0.3140.314
TC8-10SunChemTC8-10SunChem 0.2710.271 0.2830.283 1162811628 7373 0.5780.578 0.3700.370
McCarthy20070112McCarthy20070112 0.3070.307 0.3020.302 71537153 8686 0.6890.689 0.3160.316
TC 8-10: Reflectance spectra of the three TC 8-10: Reflectance spectra of the three paper samplespaper samples
Three papers with UV excitatin included
0
20
40
60
80
100
120
140
350 400 450 500 550 600 650 700 750 800
wavelength, nm
Sp
. ra
dia
nce
fac
tor
FILTER PAPER
ALPINE WHITE
ULTRA WHITE
TC 8-10TC 8-10 : Example of a field measurement : Example of a field measurement Yaguchi070405Morning
W1 Sp.radiance from paper
0
0.001
0.002
0.003
0.004
0.005
0.006
350 400 450 500 550 600 650 700 750 800
wvelength, nm
rel.
sp
. ra
dia
nc
e
W1F
W1A
W1U
TC 8-11: TC 8-11: CIECAM02 MathematicsCIECAM02 Mathematics
To investigate the improvements of the To investigate the improvements of the CIECAM02 model to avoid mathematical CIECAM02 model to avoid mathematical inconsistenciesinconsistencies
Established in 2007, Chair: Changjun LiEstablished in 2007, Chair: Changjun Li
TC 8-12: TC 8-12: Video Compression Video Compression AssessmentAssessment
To establish and report on the display and To establish and report on the display and viewing conditions and materials for video viewing conditions and materials for video compression quality evaluation in different compression quality evaluation in different applications including, but not limited to, applications including, but not limited to, web, mobile phones, HDTV, home web, mobile phones, HDTV, home cinemea and digital cinemacinemea and digital cinema
Established in 2007, Chair: Established in 2007, Chair: Christine Christine Fernandez-MaloigneFernandez-Maloigne
Thanks for your kind attention!Thanks for your kind attention!