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US 9,807,255 B2Granted
Image processing apparatus
AssigneeCanon Kabushiki Kaisha
InventorYasuhiro Shiraishi
Life of this patent
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Abstract
Image data output from an image capturing unit is input to an image processing circuit, and the image processing circuit is connected in cascade to another image processing circuit. With the image processing circuit, a portion of the image data for which processing is shared is processed by the image processing circuit, the processed image data is multiplexed by a multiplexing unit with another portion of the image data to be processed by the other image processing circuit, and is transmitted to the other image processing circuit by an output IF unit. The other image processing circuit processes its share of the image data and displays it along with the processed image data received from an image processing unit.
Claims14
An image processing apparatus comprising:
- an image capturing unit;
- a first image processing circuit connected to the image capturing unit;
- and
- a second image processing circuit connected to the first image processing circuit,
- wherein a first memory is connected to the first image processing circuit and a second memory is connected to the second image processing circuit,
- the first image processing circuit includes:
- a separation unit configured to separate moving image data output from the image capturing unit into first data, which is a portion to be processed by the first image processing circuit, and second data, which is a portion to be processed by the second image processing circuit;
- a first image processing unit configured to carry out predetermined processing on the first data output from the separation unit and to store the processed first data in the first memory;
- a transmission unit configured to read out the first data processed by the first image processing unit from the first memory, multiplex the second data from the separation unit and the processed first data read out from the first memory, and transmit the multiplexed data to the second image processing circuit;
- and
- a first control unit configured to control the transmission unit,
- the second image processing circuit includes:
- a reception unit configured to receive the multiplexed data transmitted by the transmission unit and separate the multiplexed data into the second data and the processed first data;
- a storage unit configured to store the processed first data received by the reception unit in a buffer;
- a writing unit configured to read out the processed first data from the storage unit and store the processed first data in the second memory;
- a second image processing unit configured to carry out the predetermined processing on the second data received by the reception unit and store the processed second data in the second memory;
- and
- a detection unit configured to output a control signal to the first image processing circuit in response to a data amount of the processed first data stored in the buffer reaching a threshold value, and
- wherein the first control unit controls the transmission unit so as to stop transmission of the processed first data in response to the control signal from the detection unit.
16 more elements
An image processing apparatus comprising:
- an image capturing unit;
- and
- a plurality of image processing circuits connected in series,
- wherein the plurality of image processing circuits carry out predetermined processing on moving image data obtained by the image capturing unit,
- one of the plurality of image processing circuits is connected to the image capturing unit,
- the plurality of image processing circuits each include:
- a reception unit configured to receive data including at least the moving image data obtained by the image capturing unit;
- a separation unit configured to acquire moving image data that is a portion to be processed by the image processing circuit from the moving image data received by the reception unit, the separation unit being configured to output moving image data that is a portion to be processed by a latter-stage image processing circuit if the moving image data received by the reception unit includes the moving image data that is the portion to be processed by the latter-stage image processing circuit;
- an image processing unit configured to carry out the predetermined processing on the moving image data, which is the portion that was acquired by the separation unit and is to be processed by the image processing unit, and store the resulting data in a memory;
- a storage unit configured to store data processed by a former-stage image processing circuit in a buffer if the data processed by the former-stage image processing circuit is included in the data received by the reception unit;
- a writing unit configured to read out the data processed by the former-stage image processing circuit from the buffer and write the data in the memory;
- a detection unit configured to output a control signal to the former-stage image processing circuit in response to a data amount of data that was processed by the former-stage image processing circuit and stored in the buffer reaching a threshold value;
- a transmission unit configured to, if the latter-stage image processing circuit is connected, read out the data processed by the image processing unit from the memory, multiplex the moving image data, which is the portion that was output from the separation unit and is to be processed by the latter-stage image processing circuit, and the data from the memory that was processed by the image processing unit, and transmit the multiplexed data to the latter-stage image processing circuit, the transmission unit being configured to transmit the data processed by the former-stage image processing circuit to the latter-stage image processing circuit as well in a case where the data processed by the former-stage image processing circuit is stored in the memory;
- and
- a control unit configured to control the transmission unit,
- wherein the control unit controls the transmission unit so as to stop transmission of the data processed by the image processing unit to the latter-stage image processing circuit in response to the control signal from the latter-stage image processing circuit.
13 more elements
Dependencies are inferred from the claim text.