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US 2008/0278596 A1Published application
Image sensor and color imaging apparatus
AssigneeCanon Kabushiki Kaisha
InventorsYoshihito Machida, Tomokazu Yanai
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Abstract
An image sensor includes a photoelectric conversion element group, and color filters of at least two colors arranged on respective photoelectric conversion elements of the photoelectric conversion element group. The color filters are arranged on the respective photoelectric conversion elements such that a spatial frequency component of array of color filters of each color includes a reduced amount of component in a low-frequency region and a band component in a high-frequency region.
Claims8
An image sensor comprising:
- a photoelectric conversion element group having a plurality of photoelectric conversion elements;
- and
- color filters of at least two colors arranged on respective photoelectric conversion elements of the photoelectric conversion element group,
- wherein the color filters are arranged on the respective photoelectric conversion elements such that a spatial frequency component of array of color filters of each color includes a reduced amount of component in a low-frequency region and a band component in a high-frequency region.
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A color imaging apparatus comprising:
- a color image sensor including a photoelectric conversion element group and color filters of at least two colors arranged on the photoelectric conversion element group;
- and
- an interpolation processing unit configured to perform interpolation processing on color signals output from the color image sensor to generate image signals corresponding to a plurality of color components,
- wherein the color filters are arranged on the photoelectric conversion element group such that a spatial frequency component of array of color filters of each color includes a reduced amount of component in a low-frequency region and a band component in a high-frequency region.
1 more element
Dependencies are inferred from the claim text.