Image pickup apparatus and method of controlling image pickup apparatus
First Claim
Patent Images
1. An image pickup apparatus, comprising:
- one or more processors; and
a memory storing instructions which, when the instructions are executed by the one or more processors, cause the image pickup apparatus to function as;
a compression unit configured to perform compression processing on image data;
an expansion unit configured to perform expansion processing on the image data that has been subjected to the compression processing based on a coding parameter used for the compression processing on the image data; and
a processing unit configured to perform autofocus processing based on the image data that has been subjected to the expansion processing, the autofocus processing being adaptively performed based on a distribution of values of the coding parameter.
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Abstract
An image pickup apparatus, including: a compression unit configured to perform compression processing on image data; an expansion unit configured to perform expansion processing on the image data that has been subjected to the compression processing based on a coding parameter used for the compression processing on the image data; and a processing unit configured to perform autofocus processing based on the image data that has been subjected to the expansion processing, the autofocus processing being adaptively performed based on the coding parameter.
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Citations
16 Claims
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1. An image pickup apparatus, comprising:
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one or more processors; and a memory storing instructions which, when the instructions are executed by the one or more processors, cause the image pickup apparatus to function as; a compression unit configured to perform compression processing on image data; an expansion unit configured to perform expansion processing on the image data that has been subjected to the compression processing based on a coding parameter used for the compression processing on the image data; and a processing unit configured to perform autofocus processing based on the image data that has been subjected to the expansion processing, the autofocus processing being adaptively performed based on a distribution of values of the coding parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of controlling an image pickup apparatus, comprising:
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performing compression processing on image data; performing expansion processing on the image data that has been subjected to the compression processing based on a coding parameter used for the compression processing on the image data; and performing autofocus processing based on the image data that has been subjected to the expansion processing, the autofocus processing being adaptively performed based on a distribution of values of the coding parameter.
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10. A non-transitory computer-readable storage medium having stored thereon a computer program for causing a computer to function as:
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an expansion unit configured to perform expansion processing on image data that has been subjected to compression processing based on a coding parameter used for the compression processing on the image data; and a processing unit configured to perform autofocus processing based on the image data that has been subjected to the expansion processing, the autofocus processing being adaptively performed based on a distribution of values of the coding parameter.
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11. An image processing apparatus, comprising:
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one or more processors; and a memory storing instructions which, when the instructions are executed by the one or more processors, cause the image processing apparatus to function as; an acquisition unit configured to acquire image data that has been subj ected to compression processing by an image pickup element, and a coding parameter used for the compression processing; an expansion unit configured to perform expansion processing on the image data that has been subjected to the compression processing based on the coding parameter; and a processing unit configured to perform autofocus processing based on the image data that has been subjected to the expansion processing, the autofocus processing being adaptively performed based on a distribution of values of the coding parameter. - View Dependent Claims (12)
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13. A method of controlling an image processing apparatus, comprising:
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acquiring image data that has been subjected to compression processing by an image pickup element, and a coding parameter used for the compression processing; performing expansion processing on the image data that has been subjected to the compression processing based on the coding parameter; and performing autofocus processing based on the image data that has been subjected to the expansion processing, the autofocus processing being adaptively performed based on a distribution of values of the coding parameter.
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14. An image pickup apparatus, comprising:
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one or more processors; and a memory storing instructions which, when the instructions are executed by the processors, cause the image pickup apparatus to function as; a compression unit configured to perform compression processing on image data; an expansion unit configured to perform expansion processing on the image data that has been subjected to the compression processing based on a coding parameter used for the compression processing on the image data; and a processing unit configured to perform autofocus processing based on the image data that has been subjected to the expansion processing, the autofocus processing being adaptively performed based on the coding parameter, wherein the processing unit adaptively selects a computation method to be used for the autofocus processing in accordance with a distribution of values of the coding parameter.
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15. An image pickup apparatus, comprising:
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one or more processors; and a memory storing instructions which, when the instructions are executed by the processors, cause the image pickup apparatus to function as; a compression unit configured to perform compression processing on image data; an expansion unit configured to perform expansion processing on the image data that has been subjected to the compression processing based on a coding parameter used for the compression processing on the image data; and a processing unit configured to perform autofocus processing based on the image data that has been subjected to the expansion processing, the autofocus processing being adaptively performed based on the coding parameter, wherein the processing unit adaptively selects a method of driving a lens to be used for the autofocus processing in accordance with a distribution of values of the coding parameter.
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16. An image pickup apparatus, comprising:
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one or more processors; and a memory storing instructions which, when the instructions are executed by the processors, cause the image pickup apparatus to function as; a compression unit configured to perform compression processing on image data; an expansion unit configured to perform expansion processing on the image data that has been subjected to the compression processing based on a coding parameter used for the compression processing on the image data; and a processing unit configured to perform autofocus processing based on the image data that has been subjected to the expansion processing, the autofocus processing being adaptively performed based on the coding parameter, wherein the processing unit adaptively selects a computation target region of the image data, which corresponds to a target region to be computed during the autofocus processing, in accordance with a distribution of values of the coding parameter.
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Specification