Image processing apparatus, image processing method and program, and image pickup apparatus including image processing apparatus for correcting defect pixels
AssigneeCanon Kabushiki Kaisha
InventorHideki Ikedo
Life of this patent
Estimating the term…
Abstract
The image processing apparatus processes an image signal obtained from an image pickup element using an image pickup optical system arranged to obtain directional traveling information of object image light corresponding to a pupil division area of a photographing lens. The apparatus includes: a unit of setting a focal position at which the refocused image is generated; and a unit of correcting an image signal of a defect pixel of the image pickup element using an image signal of other pixel. The apparatus determines the other pixel to be used for correcting the image signal of the defect pixel on the basis of the set focal position and the directional traveling information of the object image light.
Claims9
An image processing apparatus for processing an image signal obtained from an image pickup element, a plurality of pixels of the image pickup element being assigned to one microlens, the image processing apparatus comprising:
- one or more processors;
- and
- a memory storing instructions which, when the instructions are executed by the processor, cause the image processing apparatus to function as:
- a correction unit configured to correct an image signal of a defect pixel of the image pickup element using an image signal of another pixel of the image pickup element,
- wherein the correction unit determines the another pixel to be used for correcting the image signal of the defect pixel based on a corresponding position of an image signal of a pixel of the image pickup element on a refocus plane.
A control method of an image processing apparatus for processing an image signal obtained from an image pickup element, a plurality of pixels of the image pickup element being assigned to one microlens, the control method comprising:
- correcting an image signal of a defect pixel of the image pickup element using an image signal of another pixel of the image pickup element,
- wherein the correcting includes determining the another pixel to be used for correcting the image signal of the defect pixel based on a corresponding position of an image signal of a pixel of the image pickup element on a refocus plane.
A non-transitory computer readable storage medium storing a program comprising program code for causing a computer to execute a control method of an image processing apparatus for processing an image signal obtained from an image pickup element, a plurality of pixels of the image pickup element being assigned to one microlens, the control method comprising:
- correcting an image signal of a defect pixel of the image pickup element using an image signal of another pixel of the image pickup element,
- wherein the correcting includes determining the another pixel to be used for correcting the image signal of the defect pixel based on a corresponding position of an image signal of a pixel of the image pickup element on a refocus plane.
An image pickup apparatus comprising:
- an image pickup element configured to output an image signal, the image pickup element having a plurality of pixels assigned to one microlens;
- one or more processors;
- and
- a memory storing instructions which, when the instructions are executed by the processor, cause the image pickup apparatus to function as:
- a correction unit configured to correct an image signal of a defect pixel of the image pickup element using an image signal of another pixel of the image pickup element,
- wherein the correction unit determines the another pixel to be used for correcting the image signal of the defect pixel based on a corresponding position of an image signal of a pixel of the image pickup element on a refocus plane.
Dependencies are inferred from the claim text.