Camera module, image processing apparatus, and image processing method
AssigneeKabushiki Kaisha Toshiba
InventorTakayuki OGASAHARA
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a camera module includes a second imaging optical system and an image processing section. The second imaging optical system forms an image piece. The image processing section has at least one of an alignment adjustment section, a resolution restoration section, and a shading correction section and has a stitching section. The stitching section joins the image pieces, subjected to at least one of alignment adjustment, resolution restoration, and shading correction, together to form a subject image.
Claims15
A camera module comprising:
- an imaging section which comprises pixel cells arranged in the form of an array and images a subject image;
- a first imaging optical system which comprises a main lens through which light from a subject is taken into the imaging section;
- a second imaging optical system which is provided in an optical path between the imaging section and the first imaging optical system and forms an image piece, corresponding to a portion of the subject image, for each pixel block constituted of a plurality of the pixel cells;
- and
- an image processing section which performs a signal processing of an image signal obtained by imaging the subject image in the imaging section,
- wherein the second imaging optical system forms the image piece by a sub lens provided corresponding to each of the pixel blocks, and
- the image processing section has at least one of
- an alignment adjustment section which performs alignment adjustment for correcting a deviation in the image piece due to an individual difference of the sub lens;
- a resolution restoration section which performs resolution restoration of the image piece based on lens characteristics of the sub lens;
- and
- a shading correction section which performs shading correction in the sub lens,
- and has a stitching section which joins the image pieces, subjected to at least one of the alignment adjustment, the resolution restoration, and the shading correction, together to form the subject image.
An image processing apparatus, which performs a signal processing of an image signal obtained by imaging a subject image in an imaging section, comprising at least one of:
- an alignment adjustment section which performs alignment adjustment for correcting a deviation in an image piece due to an individual difference of sub lens for each pixel block constituted of a plurality of pixel cells arranged in the form of an array in the imaging section, the image piece being formed by the sub lens corresponding to the pixel block;
- a resolution restoration section which performs resolution restoration of the image piece based on lens characteristics of the sub lens;
- and
- a shading correction section which performs shading correction in the sub lens,
- and comprising a stitching section which joins the image pieces, subjected to at least one of the alignment adjustment, the resolution restoration, and the shading correction, together to form the subject image.
An image processing method of performing a signal processing of an image signal obtained by imaging a subject image in an imaging section, the method comprising performing at least one of:
- before stitching in which image pieces formed by a sub lens corresponding to a pixel block are joined together to be formed into the subject image for each pixel block constituted of a plurality of pixel cells arranged in the form of an array in the imaging section, alignment adjustment for correcting a deviation due to an individual difference of the sub lens with respect to the image piece;
- resolution restoration of the image pixel based on lens characteristics of the sub lens;
- and
- shading correction in the sub lens.
Dependencies are inferred from the claim text.