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Necessary and Sufficient Condition For A Color Target To Be Used in Sensitivity Estimation
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DOR
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20.1001.2.0021079099.1400.8.1.169.9
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نویسنده
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Mahmoudi Nahavandi Alireza
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منبع
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كنگره بين المللي رنگ و پوشش - 1400 - دوره : 8 - کنگره بین المللی رنگ و پوشش - کد همایش: 00210-79099 - صفحه:1 -1
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چکیده
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Color targets are used for many purposes. color calibration of digital cameras, scanners and printers, spectral sensors estimation are just a few examples of use of the color charts. despite many progress in developing these targets, there are almost no effort for defining a metric for designing such targets. using spanning theorem it was shown that the necessary and sufficient condition for having minimum error in sensitivity estimation is that the space of the sensors be covered with the samples reflectance subspace. the theorem was implemented using vora’s measure of goodness metric and the sensitivities was estimated using tsvd, dsvd and tikhonov regularization techniques. results showed superior performance of the proposed selection method as compared to the use of the traditional xrite 24 patch color target.
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کلیدواژه
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Color Target ,Sensitivity Estimation ,Goodness Metric
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آدرس
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Institute For Color Science And Technology (Icst), Department Of Color Imaging And Color Image Processing, Iran, Department Of Computer Science, Faculty Of Information Technology And Electrical Engineering, Norwegian University Of Science And Technology (Ntnu), Norway
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Necessary and sufficient condition for a color target to be used in sensitivity estimation
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Authors
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Mahmoudi Nahavandi Alireza
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Abstract
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Color targets are used for many purposes. Color calibration of digital cameras, scanners and printers, spectral sensors estimation are just a few examples of use of the color charts. Despite many progress in developing these targets, there are almost no effort for defining a metric for designing such targets. Using spanning theorem it was shown that the necessary and sufficient condition for having minimum error in sensitivity estimation is that the space of the sensors be covered with the samples reflectance subspace. The theorem was implemented using Vora’s Measure of goodness metric and the sensitivities was estimated using TSVD, DSVD and Tikhonov regularization techniques. Results showed superior performance of the proposed selection method as compared to the use of the traditional Xrite 24 patch color target.
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Keywords
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Color target ,Sensitivity estimation ,Goodness metric
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