Color wide dynamic range camera
First Claim
Patent Images
1. A color wide dynamic range video imaging apparatus comprising:
- sensor means for providing a plurality of color video images of a scene at different exposure levels;
means for dividing each color video image into components; and
means for processing said components of each said plurality of color video images to produce a combined color video image including image information from said components by processing at least one of said components wherein said means for processing operates by applying neighborhood processing means to one or more of said components.
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Abstract
The apparatus is a color wide dynamic range video camera which takes a plurality of images at different exposure levels, applies neighborhood processing to each of the images, and then combines the components into a final image.
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Citations
33 Claims
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1. A color wide dynamic range video imaging apparatus comprising:
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sensor means for providing a plurality of color video images of a scene at different exposure levels; means for dividing each color video image into components; and means for processing said components of each said plurality of color video images to produce a combined color video image including image information from said components by processing at least one of said components wherein said means for processing operates by applying neighborhood processing means to one or more of said components. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A color wide dynamic range video imaging apparatus comprising:
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sensor means for providing a plurality of color video images of a scene at different exposure levels; means for dividing each color video image into components; and means for processing said components of each of said plurality of color video images to produce a combined color video image including image information from said components of each of said plurality of color video images by processing at least one of said components of each of said plurality of color video images, wherein said means for processing comprises a first means for transforming each of said plurality of color video image components into an achromatic component and two chromatic components;
neighborhood processing means for said achromatic component to generate a processed achromatic component;
gain multiplying means for applying a gain to said chromatic components to generate amplified chromatic components; and
a second means for transforming said processed achromatic component and said amplified chromatic components into at least three chromatic output components of each of said plurality of video images. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A color wide dynamic range video imaging apparatus comprising:
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sensor means for providing a plurality of chromatic color video images of a scene at different exposure levels; means for dividing each color video image into chromatic components; and means for processing said components of each of said plurality of color video images to produce a combined color video image including image information from said components of each of said plurality of color video images by processing at least one of said components of each of said plurality of color video images, wherein said means for processing comprises a means for receiving each of said chromatic components and generating an intensity signal therefrom;
means for processing said intensity signal;
means for combining said processed intensity signal into aid chromatic components;
memory means for storing previous information for each of said chromatic components;
means for combining said previous information for each of said chromatic components into said chromatic components; and
output look-up table means for transforming said chromatic components. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A color wide dynamic range video imaging apparatus comprising:
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sensor means for providing a plurality of chromatic color video images of a scene at different exposure levels; means for dividing each color video image into chromatic components; and means for processing said components of each of said plurality of color video images to produce a combined color video image including image information from said components of each of said plurality of color video images by processing at least one of said components of each of said plurality of color video images, wherein said means for processing comprises for each of said plurality color video images; means for calculating a luminance component from said chromatic components; means for calculating a convolved luminance component from said luminance component; means for calculating a weighing factor from at least said luminance component; and means for multiplying said weighing factor times said chromatic components. - View Dependent Claims (24, 25, 26)
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27. A color wide dynamic range video imaging apparatus comprising:
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sensor means for providing a plurality of color video images of a scene at different exposure levels; means for dividing each color video image into chromatic components; and means for processing said components of each of said plurality of color video images to produce a combined color video image including image information from said components of each of said plurality of color video images by processing at least one of said components of each of said plurality of color video images, wherein said means for processing comprises for each of said plurality color video images; means for calculating a luminance component from said chromatic components; means for dividing said chromatic components by said luminance component to produce normalized chromatic signals; means for calculating a processed luminance component from said luminance component; means for calculating a weighing factor from at least said luminance component of each of said plurality of color video images; and means for multiplying said weighing factor times said normalized chromatic components. - View Dependent Claims (28, 29, 30)
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31. A color wide dynamic range video imaging apparatus comprising:
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sensor means for providing a plurality of color video images of a scene at different exposure levels; means for dividing each color video image into components; and means for processing said components of each of said plurality of color video images to produce a combined color video image including image information from said components of each of said plurality of color video images by processing at least one of said components of each of said plurality of color video images, wherein said means for processing comprises a first means for transforming each of said plurality of color video image components into an achromatic component and two chromatic components;
neighborhood processing means for each of said achromatic and chromatic components to generate a processed achromatic component and two processed chromatic components; and
a second means for transforming said processed achromatic and chromatic components into at least three chromatic output components of each of said plurality of video images. - View Dependent Claims (32, 33)
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Specification