Defective pixel data correcting apparatus, image capturing apparatus, and method for correcting defective pixel data
AssigneeCanon Kabushiki Kaisha
InventorToshiro Yamaguchi
Life of this patent
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Abstract
Among defective pixels of an image sensor, defective pixels which need to be corrected are determined depending on the type and defect level for individual defective pixels and on image capturing conditions. Depending on the types of the defective pixels, the correspondences between the image capturing conditions and the defect levels of the defective pixels to be corrected are prepared in advance, thereby carrying out appropriate defective pixel correction in view of the fact that the dependence of the abnormal signal output level on the image capturing conditions differs depending on the type of defective pixel.
Claims8
A defective pixel data correcting apparatus for correcting defective pixel data output from a defective pixel of an image sensor, the defective pixel data contained in image data captured using the image sensor comprising a plurality of pixels, the defective pixel data correcting apparatus comprising:
- a correction unit adapted to correct the defective image data based on an image capturing condition for the image data and a type of the defective pixel.
A defective pixel data correction method for correcting defective pixel data output from a defective pixel of an image sensor, the defective pixel data contained in image data captured using the image sensor comprising a plurality of pixels, the defective pixel data correction method comprising:
- a correction step of correcting the defective image data based on an image capturing condition for the image data and a type of the defective pixel.
Dependencies are inferred from the claim text.