Apparatus and method for illuminator-independent color measurements
First Claim
1. A method, comprising:
- generating a first light beam comprising a plurality of first spatial regions, at least two of the first spatial regions being spectrally different;
generating at least one second light beam and at least one third light beam using the first light beam, the at least one second light beam comprising a plurality of second spatial regions, each of the second spatial regions comprising a plurality of first wavelength bands, the at least one third light beam comprising a plurality of third spatial regions, at least two of the second spatial regions being spectrally different, at least two of the third spatial regions being spectrally different;
measuring a spectrum in each of the plurality of first wavelength bands for each of the second spatial regions;
illuminating at least part of an object with the at least one third light beam to produce at least one fourth light beam, the at least one fourth light beam comprising a plurality of fourth spatial regions, each of the fourth spatial regions comprising a plurality of second wavelength bands, at least two of the fourth spatial regions being spectrally different;
measuring a spectrum in each of the plurality of second wavelength bands for each of the fourth spatial regions; and
identifying a radiance transfer factor of the object using at least some of the measured spectra.
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Abstract
A method includes generating at least one first light beam and generating at least one second light beam and at least one third light beam using the at least one first light beam. The at least one first light beam has a plurality of first regions, the at least one second light beam has a plurality of second regions, and the at least one third light beam has a plurality of third regions. Each of the first, second, and third light beams has at least two regions that are spectrally different. The method also includes measuring a spectrum in each of a plurality of first wavelength bands for each of the second regions. The method further includes illuminating at least part of an object with the at least one third light beam to produce at least one fourth light beam. The at least one fourth light beam has a plurality of fourth regions, where at least two of the fourth regions are spectrally different. In addition, the method includes measuring a spectrum in each of a plurality of second wavelength bands for each of the fourth regions and identifying a radiance transfer factor of the object using at least some of the measured spectra.
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Citations
20 Claims
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1. A method, comprising:
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generating a first light beam comprising a plurality of first spatial regions, at least two of the first spatial regions being spectrally different; generating at least one second light beam and at least one third light beam using the first light beam, the at least one second light beam comprising a plurality of second spatial regions, each of the second spatial regions comprising a plurality of first wavelength bands, the at least one third light beam comprising a plurality of third spatial regions, at least two of the second spatial regions being spectrally different, at least two of the third spatial regions being spectrally different; measuring a spectrum in each of the plurality of first wavelength bands for each of the second spatial regions; illuminating at least part of an object with the at least one third light beam to produce at least one fourth light beam, the at least one fourth light beam comprising a plurality of fourth spatial regions, each of the fourth spatial regions comprising a plurality of second wavelength bands, at least two of the fourth spatial regions being spectrally different; measuring a spectrum in each of the plurality of second wavelength bands for each of the fourth spatial regions; and identifying a radiance transfer factor of the object using at least some of the measured spectra. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus, comprising:
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a beam generator configured to; generate a first light beam comprising a plurality of first spatial regions, at least two of the first spatial regions being spectrally different; and generate at least one second light beam and at least one third light beam using the first light beam, the at least one second light beam comprising a plurality of second spatial regions, each of the second spatial regions comprising a plurality of first wavelength bands, the at least one third light beam comprising a plurality of third spatial regions, at least two of the second spatial regions being spectrally different, at least two of the third spatial regions being spectrally different; a first detector configured to measure a spectrum in each of the plurality of first wavelength bands for each of the second spatial regions; and a second detector configured to measure a spectrum in each of a plurality of second wavelength bands for each of a plurality of fourth spatial regions in at least one fourth light beam, at least two of the fourth spatial regions being spectrally different, the at least one fourth light beam generated by illuminating at least part of an object with the at least one third light beam. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. An apparatus, comprising:
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beam generating means configured to; generate a first light beam comprising a plurality of first spatial regions, at least two of the first spatial regions being spectrally different; and generate at least one second light beam and at least one third light beam using the first light beam, the at least one second light beam comprising a plurality of second spatial regions, each of the second spatial regions comprising a plurality of first wavelength bands, the at least one third light beam comprising a plurality of third spatial regions, at least two of the second spatial regions being spectrally different, at least two of the third spatial regions being spectrally different; first measuring means configured to measure a spectrum in each of the plurality of first wavelength bands for each of the second spatial regions; and second measuring means configured to measure a spectrum in each of a plurality of second wavelength bands for each of a plurality of fourth spatial regions in at least one fourth light beam, at least two of the fourth spatial regions being spectrally different, the at least one fourth light beam generated by illuminating at least part of an object with the at least one third light beam. - View Dependent Claims (19, 20)
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Specification