Image pickup device, integrated circuit of image pickup element, and image pickup result processing method
First Claim
1. An image pickup device characterized by comprising:
- image pickup means for outputting image pickup results by XY address control, said image pickup means including a plurality of photoelectric conversion units arranged in a form of a matrix; and
a peripheral circuit retained integrally with said image pickup means, said peripheral circuit being connected to said photoelectric conversion units by a wiring layer formed on a surface on an opposite side from a light receiving surface of said image pickup means,the image pickup results of said image pickup means being processed and output by said peripheral circuit,wherein said peripheral circuit includesimage compressing means for data-compressing and outputting at least said image pickup results in each predetermined processing unit, andcontrolling means for controlling a data compression ratio of said image compressing means,said peripheral circuit is supplied with said image pickup results from said image pickup means in units of blocks formed by dividing an effective image area in a horizontal direction and a vertical direction, and sequentially data-compresses said image pickup results, andwithin one frame, on a basis of an amount of code generated by data compression of one block by said image compressing means, said peripheral circuit changes the data compression ratio when at least a next block is data-compressed by said image compressing means, andsaid image pickup means outputs the image pickup results of said photoelectric conversion units with said blocks as units in a sequence corresponding to the data compression by said image compressing means.
1 Assignment
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Accused Products
Abstract
The present invention is applied to for example video cameras recording an image pickup result by moving picture, electronic still cameras, monitoring devices and the like. Image pickup means 3 and image compressing means 6 are connected to each other by a wiring layer formed on a surface on an opposite side from an image pickup surface of the image pickup means 3, and are thereby integrated with each other. A data compression ratio used for data compression of at least a next block is changed on the basis of an amount of code generated by data compression of an image pickup result S1 in a block unit. Also, the image pickup result S1 of each photoelectric conversion unit is output from the image pickup means 3 in such a manner as to correspond to the processing in the block unit.
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Citations
17 Claims
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1. An image pickup device characterized by comprising:
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image pickup means for outputting image pickup results by XY address control, said image pickup means including a plurality of photoelectric conversion units arranged in a form of a matrix; and a peripheral circuit retained integrally with said image pickup means, said peripheral circuit being connected to said photoelectric conversion units by a wiring layer formed on a surface on an opposite side from a light receiving surface of said image pickup means, the image pickup results of said image pickup means being processed and output by said peripheral circuit, wherein said peripheral circuit includes image compressing means for data-compressing and outputting at least said image pickup results in each predetermined processing unit, and controlling means for controlling a data compression ratio of said image compressing means, said peripheral circuit is supplied with said image pickup results from said image pickup means in units of blocks formed by dividing an effective image area in a horizontal direction and a vertical direction, and sequentially data-compresses said image pickup results, and within one frame, on a basis of an amount of code generated by data compression of one block by said image compressing means, said peripheral circuit changes the data compression ratio when at least a next block is data-compressed by said image compressing means, and said image pickup means outputs the image pickup results of said photoelectric conversion units with said blocks as units in a sequence corresponding to the data compression by said image compressing means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 14, 15, 16, 17)
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9. An integrated circuit of an image pickup element characterized by comprising:
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image pickup means for outputting image pickup results by XY address control, said image pickup means including a plurality of photoelectric conversion units arranged in a form of a matrix; and a peripheral circuit retained integrally with said image pickup means, said peripheral circuit being connected to said photoelectric conversion units by a wiring layer formed on a surface on an opposite side from a light receiving surface of said image pickup means, the image pickup results of said image pickup means being processed and output by said peripheral circuit, wherein said peripheral circuit includes image compressing means for data-compressing and outputting at least said image pickup results in each predetermined processing unit, and controlling means for controlling a data compression ratio of said image compressing means, said peripheral circuit is supplied with said image pickup results from said image pickup means in units of blocks formed by dividing an effective image area in a horizontal direction and a vertical direction, and sequentially data-compresses said image pickup results, and within one frame, on a basis of an amount of code generated by data compression of one block by said image compressing means, said peripheral circuit changes the data compression ratio when at least a next block is data-compressed by said image compressing means, and said image pickup means outputs the image pickup results of said photoelectric conversion units with said blocks as units in a sequence corresponding to the data compression by said image compressing means.
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10. An image pickup device characterized by comprising:
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an image pickup section configured to output image pickup results by XY address control, said image pickup section including a plurality of photoelectric conversion units arranged in a form of a matrix; and a peripheral circuit retained integrally with said image pickup section, said peripheral circuit being connected to said photoelectric conversion units by a wiring layer formed on a surface on an opposite side from a light receiving surface of said image pickup section; the image pickup results of said image pickup section being processed and output by said peripheral circuit, wherein said peripheral circuit includes an image compressing section configured to data-compress and output at least said image pickup results in each predetermined processing unit, and a controlling section configured to control a data compression ratio of said image compressing section, said peripheral circuit is supplied with said image pickup results from said image pickup section in units of blocks formed by dividing an effective image area in a horizontal direction and a vertical direction, and sequentially data-compresses said image pickup results, and within one frame, on a basis of an amount of code generated by data compression of one block by said image compressing section, said peripheral circuit changes the data compression ratio when at least a next block is data-compressed by said image compressing section, and said image pickup section outputs the image pickup results of said photoelectric conversion units with said blocks as units in a sequence corresponding to the data compression by said image compressing section.
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11. An integrated circuit of an image pickup element characterized by comprising:
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an image pickup section configured to output image pickup results by XY address control, said image pickup section including a plurality of photoelectric conversion units arranged in a form of a matrix; and a peripheral circuit retained integrally with said image pickup section, said peripheral circuit being connected to said photoelectric conversion units by a wiring layer formed on a surface on an opposite side from a light receiving surface of said image pickup section; the image pickup results of said image pickup section being processed and output by said peripheral circuit, wherein said peripheral circuit includes an image compressing section configured to data-compress and output at least said image pickup results in each predetermined processing unit, and a controlling section configured to control a data compression ratio of said image compressing section, said peripheral circuit is supplied with said image pickup results from said image pickup section in units of blocks formed by dividing an effective image area in a horizontal direction and a vertical direction, and sequentially data-compresses said image pickup results, and within one frame, on a basis of an amount of code generated by data compression of one block by said image compressing section, said peripheral circuit changes the data compression ratio when at least a next block is data-compressed by said image compressing section, and said image pickup section outputs the image pickup results of said photoelectric conversion units with said blocks as units in a sequence corresponding to the data compression by said image compressing section.
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12. A method of processing image pickup results in an image pickup device, said image pickup device including image pickup means for outputting image pickup results by XY address control, said image pickup means including a plurality of photoelectric conversion units arranged in a form of a matrix, and a peripheral circuit retained integrally with said image pickup means, said peripheral circuit being connected to said photoelectric conversion units by a wiring layer formed on a surface on an opposite side from a light receiving surface of said image pickup means, the image pickup results of said image pickup means being processed and output by said peripheral circuit, said method characterized by comprising:
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an image pickup result outputting step of outputting the image pickup results of said photoelectric conversion units from said image pickup means to said peripheral circuit; an image compressing step of data-compressing and outputting at least said image pickup results in each predetermined processing unit by said peripheral circuit; and a controlling step of controlling a data compression ratio of said image compressing step, wherein in said image compressing step, said image pickup results are input from said image pickup means in units of blocks formed by dividing an effective image area in a horizontal direction and a vertical direction, and sequentially data-compressed, in said controlling step, within one frame, on a basis of an amount of code generated by data compression of one block by said image compressing step, the data compression ratio when at least a next block is data-compressed by said image compressing step is changed, and in said image pickup result outputting step, the image pickup results of said photoelectric conversion units are output with said blocks as units in a sequence corresponding to the data compression by said image compressing step.
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13. A method of processing image pickup results in an integrated circuit of an image pickup element, said integrated circuit of the image pickup element including image pickup means for outputting image pickup results by XY address control, said image pickup means including a plurality of photoelectric conversion units arranged in a form of a matrix, and a peripheral circuit retained integrally with said image pickup means, said peripheral circuit being connected to said photoelectric conversion units by a wiring layer formed on a surface on an opposite side from a light receiving surface of said image pickup means, the image pickup results of said image pickup means being processed and output by said peripheral circuit, said method characterized by comprising:
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an image pickup result outputting step of outputting the image pickup results of said photoelectric conversion units from said image pickup means to said peripheral circuit; an image compressing step of data-compressing and outputting at least said image pickup results in each predetermined processing unit by said peripheral circuit; and a controlling step of controlling a data compression ratio of said image compressing step, wherein in said image compressing step, said image pickup results are input from said image pickup means in units of blocks formed by dividing an effective image area in a horizontal direction and a vertical direction, and sequentially data-compressed, in said controlling step, within one frame, on a basis of an amount of code generated by data compression of one block by said image compressing step, the data compression ratio when at least a next block is data-compressed by said image compressing step is changed, and in said image pickup result outputting step, the image pickup results of said photoelectric conversion units are output with said blocks as units in a sequence corresponding to the data compression by said image compressing step.
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Specification