IMAGE PICKUP APPARATUS AND METHOD OF CONTROLLING IMAGE PICKUP APPARATUS
First Claim
Patent Images
1. An image pickup apparatus, comprising:
- 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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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.
8 Citations
17 Claims
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1. An image pickup apparatus, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. 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 the coding parameter.
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11. A 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 the coding parameter.
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12. An image pickup element, comprising:
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a light receiving unit configured to receive a light flux from an object via an image pickup optical system, and to convert the light flux into an analog electric signal; a conversion unit configured to convert the analog electric signal output from the light receiving unit into digital image data; a compression unit configured to compress the digital image data based on a coding parameter comprising a quantization parameter; and an output unit configured to output the coding parameter and the digital image data compressed by the compression unit to an external element. - View Dependent Claims (13)
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14. An image processing apparatus, comprising:
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an acquisition unit configured to acquire image data that has been subjected 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 the coding parameter. - View Dependent Claims (15)
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16. A method of controlling an image pickup element, comprising:
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receiving a light flux from an object via an image pickup optical system to convert the light flux into an analog electric signal; converting the analog electric signal into digital image data; compressing the digital image data based on a coding parameter including a quantization parameter; and outputting the coding parameter and the digital image data compressed in the compressing to an external element.
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17. 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 the coding parameter.
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Specification