Device and method for obtaining appearance information
First Claim
Patent Images
1. A device comprising:
- a first lighting unit that lights an object at a first incident angle;
a second lighting unit that lights the object at a second incident angle;
an image-input unit that receives light and generates image signals for the received light according to the intensity of the received light;
a first guiding unit that guides diffusely reflected light from the object to the image-input unit, allows the image-input unit to generate first image signals for the diffusely reflected light from the object lit by the first light source and allows the image-input unit to generate second image signals for the diffusely reflected light from the object lit by the second light source;
a second guiding unit that guides specularly reflected light from the object to the image-input unit, allows the image-input unit to generate third image signals for the specularly reflected light from the object;
a unit that generates glossiness information expressing the glossy regions on the object based on the first and the third image signals generated by the image-input unit;
a unit that generates texture information expressing the textured region on the object based on the first and the second image signals generated by the image-input unit; and
a unit that generates image data based on at least one of the first signals or the second signals, and includes the generated glossiness information and the generated texture information in the image data.
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Abstract
A device has first and second units that lights an object at first or second incident angles; a unit that generates image signals according to the intensity of the received light; units that guides diffusely and specularly reflected light from the object to the image-input unit; units that generates glossiness information, and texture information for the object, and image data based on image signals generated; a unit that generates and outputs the image data from glossiness information, texture information, and image data.
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Citations
11 Claims
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1. A device comprising:
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a first lighting unit that lights an object at a first incident angle;
a second lighting unit that lights the object at a second incident angle;
an image-input unit that receives light and generates image signals for the received light according to the intensity of the received light;
a first guiding unit that guides diffusely reflected light from the object to the image-input unit, allows the image-input unit to generate first image signals for the diffusely reflected light from the object lit by the first light source and allows the image-input unit to generate second image signals for the diffusely reflected light from the object lit by the second light source;
a second guiding unit that guides specularly reflected light from the object to the image-input unit, allows the image-input unit to generate third image signals for the specularly reflected light from the object;
a unit that generates glossiness information expressing the glossy regions on the object based on the first and the third image signals generated by the image-input unit;
a unit that generates texture information expressing the textured region on the object based on the first and the second image signals generated by the image-input unit; and
a unit that generates image data based on at least one of the first signals or the second signals, and includes the generated glossiness information and the generated texture information in the image data. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A device comprising:
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a first lighting unit that lights an object at a first incident angle;
a second lighting unit that lights the object at a second incident angle;
an image-input unit that receives light and generating image signals for the received light according to the intensity of the received light;
a first guiding unit that guides diffusely reflected light from the object to the image-input unit, allows the image-input unit to generate first image signals for the diffusely reflected light from the object lit by the first light source and allows the image-input unit to generate second image signals for the diffusely reflected light from the object lit by the second light source;
a second guiding unit that guides specularly reflected light from the object to the image-input unit, allows the image-input unit to generate third image signals for the specularly reflected light;
a unit that generates glossiness information expressing the glossy regions on the object based on the first and the third image signals generated by the image-input unit;
a unit that generates texture information expressing the textured region on the object based on the first and the third image signals generated by the image-input unit;
a unit that generates image data based on at least one of the first signals or the second signals, and includes the generated glossiness information and the generated texture information in the image data; and
a unit that forms a toner image on a recording medium based on the generated image data. - View Dependent Claims (8, 9, 10)
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11. A method for obtaining appearance information, comprising:
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lighting an object at a first incident angle to generate a first image signal corresponding to specularly reflected light;
lighting the object at the first incident angle to generate a third image signal corresponding to diffusely reflected light;
lighting the object at a second incident angle to generate a second image signal corresponding to diffusely reflected light;
generating glossiness information expressing glossy regions on the object by comparing the first image signal and the third image signal;
generating texture information expressing textured regions on the object by comparing the first image signal and the second image signal;
generating image data expressing the object based on the image signal corresponding to diffusely reflected light; and
including the glossiness information and the texture information in the image data, and outputting the image data.
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Specification