BRDF analyzer
First Claim
1. An apparatus for determining one or more values of a bidirectional reflectance distribution function of a subject comprising:
- sensing means for sensing light;
means for focusing the light between the sensing means and the subject; and
a computer connected to the sensing means for measuring one or more values of the bidirectional reflectance distribution function of a plurality of locations of the subject simultaneously from the light sensed by the sensing means.
1 Assignment
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Accused Products
Abstract
An apparatus for determining a bidirectional reflectance distribution function of a subject. The apparatus includes a light source for producing light. The apparatus includes sensing means for sensing the light. The apparatus includes means for focusing the light between the light source and the sensing means and the subject. The apparatus includes a computer connected to the sensing means for measuring the bidirectional reflectance distribution function of the subject from the light sensed by the sensing means. The apparatus can include only one CCD camera for sensing the light. The apparatus can include means for taking sub-measurements of the subject with light from the light source without any physical movement between sub-measurements. A method for determining a bidirectional reflectance distribution function of a subject.
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Citations
34 Claims
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1. An apparatus for determining one or more values of a bidirectional reflectance distribution function of a subject comprising:
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sensing means for sensing light; means for focusing the light between the sensing means and the subject; and a computer connected to the sensing means for measuring one or more values of the bidirectional reflectance distribution function of a plurality of locations of the subject simultaneously from the light sensed by the sensing means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for determining one or more values of a bidirectional reflectance distribution function of a subject comprising the steps of:
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placing an optically hollow structure adjacent to the subject; producing light; reflecting the light at various angles from the subject through the hollow structure; and measuring the bidirectional reflectance distribution function of a plurality of locations of the subject simultaneously from the reflected light. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. An apparatus for determining one or more values of a bidirectional reflectance distribution function of a subject comprising:
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a light source for producing light; only one CCD camera for sensing the light; means for focusing the light between the light source and the sensing means and the subject; and a computer connected to the CCD camera for measuring one or more values of the bidirectional reflectance distribution function of a plurality of locations of the subject simultaneously from the light sensed by the sensing means. - View Dependent Claims (25, 26, 27)
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28. An apparatus for determining one or more values of a bidirectional reflectance distribution function of a subject comprising:
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a light source for producing light; means for taking sub-measurements of the subject with light from the light source without any physical movement between sub-measurements; and a computer connected to the taking means for measuring one or more values of the bidirectional reflectance distribution function of a plurality of locations of the subject simultaneously from the light sensed by the taking means. - View Dependent Claims (29, 30, 31)
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32. An apparatus for determining one or more values of a bidirectional reflectance function of a subject comprising:
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a reflector consisting of a plurality of light reflecting surfaces; a sensor for sensing light from the reflector; and a processor connected to the sensor for determining one or more values of a bidirectional distribution function of a plurality of locations of the subject simultaneously based at least in part on light sensed by the sensor. - View Dependent Claims (33, 34)
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Specification