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US 9,854,169 B2Granted
Image processing apparatus, image pickup apparatus, image processing method, and non-transitory computer-readable storage medium
AssigneeCanon Kabushiki Kaisha
InventorTakeshi Watanabe
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Abstract
An image processing apparatus includes a determination unit configured to determine an optical transfer function based on shooting condition information, an acquisition unit configured to acquire shake information, a control unit configured to select a method of image restoration based on the optical transfer function and the shake information, and an image restoration unit configured to perform the image restoration based on the selected method of the image restoration.
Claims17
An image processing apparatus comprising:
- one or more processors;
- and
- a memory storing instructions, the one or more processors configured to execute the instructions, thereby causing the image processing apparatus to function as:
- a determination unit configured to determine an optical transfer function based on shooting condition information;
- an acquisition unit configured to acquire shake information corresponding to a shake;
- a control unit configured to select a method of image restoration based on the optical transfer function and the shake information;
- and
- an image restoration unit configured to perform the image restoration based on the selected method of the image restoration,
- wherein the control unit selects the method of image restoration from among methods of image restoration that include a method to correct an image blur caused by the shake,
- wherein the determination unit is configured to:
- determine, as a first optical transfer function, the optical transfer function based on the shooting condition information, and
- determine a second optical transfer function based on the first optical transfer function and the shake information, and
- wherein the determination unit is configured to combine, with the first optical transfer function, frequency characteristics of a shake acquired based on the shake information to determine the second optical transfer function.
10 more elements
An image pickup apparatus comprising:
- an image pickup device configured to photoelectrically convert an optical image formed via an image pickup optical system;
- one or more processors;
- and
- a memory storing instructions, the one or more processors configured to execute the instructions, thereby causing the image processing apparatus to function as:
- a determination unit configured to determine an optical transfer function based on shooting condition information;
- an acquisition unit configured to acquire shake information corresponding to a shake;
- a control unit configured to select a method of image restoration based on the optical transfer function and the shake information;
- and
- an image restoration unit configured to perform the image restoration based on the selected method of the image restoration,
- wherein the control unit selects the method of image restoration from among methods of image restoration that include a method to correct an image blur caused by the shake,
- wherein the determination unit is configured to:
- determine, as a first optical transfer function, the optical transfer function based on the shooting condition information, and
- determine a second optical transfer function based on the first optical transfer function and the shake information, and
- wherein the determination unit is configured to combine, with the first optical transfer function, frequency characteristics of a shake acquired based on the shake information to determine the second optical transfer function.
11 more elements
An image processing method comprising the steps of:
- determining an optical transfer function based on shooting condition information;
- acquiring shake information corresponding to a shake;
- selecting a method of image restoration based on the optical transfer function and the shake information;
- and
- performing the image restoration based on the selected method of the image restoration,
- wherein the method of image restoration is selected from among methods of image restoration that include a method to correct an image blur caused by the shake,
- wherein the determining step:
- determines, as a first optical transfer function, the optical transfer function based on the shooting condition information, and
- determines a second optical transfer function based on the first optical transfer function and the shake information, and
- wherein the determining step combines, with the first optical transfer function, frequency characteristics of a shake acquired based on the shake information to determine the second optical transfer function.
7 more elements
A non-transitory computer-readable storage medium storing an image processing program to cause a computer to execute a process comprising the steps of:
- determining an optical transfer function based on shooting condition information;
- acquiring shake information corresponding to a shake;
- selecting a method of image restoration based on the optical transfer function and the shake information;
- and
- performing the image restoration based on the selected method of the image restoration,
- wherein the method of image restoration is selected from among methods of image restoration that include a method to correct an image blur caused by the shake,
- wherein the determining step:
- determines, as a first optical transfer function, the optical transfer function based on the shooting condition information, and
- determines a second optical transfer function based on the first optical transfer function and the shake information, and
- wherein the determining step combines, with the first optical transfer function, frequency characteristics of a shake acquired based on the shake information to determine the second optical transfer function.
7 more elements
Dependencies are inferred from the claim text.