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Data processing apparatus and image processing apparatus

A technology of data processing device and image processing device, which is applied in the direction of processor architecture/configuration, image communication, television, etc., can solve problems such as time loss, and achieve the effect of fast data processing

Active Publication Date: 2010-08-04
OLYMPUS CORP
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Problems solved by technology

Therefore, there is a problem that, in each processing unit, there is a time loss in the period from the end of the processing on one divided region to the processing on the next divided region.

Method used

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  • Data processing apparatus and image processing apparatus
  • Data processing apparatus and image processing apparatus
  • Data processing apparatus and image processing apparatus

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Embodiment Construction

[0012] Hereinafter, an embodiment in which the present invention is applied to an image processing device will be described.

[0013] figure 1 is a block diagram of an image processing device according to one embodiment. An image processing device according to one embodiment includes an input DMA unit 1 , a YC processing unit 2 , an NR processing unit 3 , an output DMA unit 4 , a DMA bus 5 , a DRAM 6 , and a sequence controller 10 . This image processing device is used, for example, as an electronic imaging device such as a digital camera.

[0014] The DRAM 6 stores data (hereinafter referred to as image data) obtained by performing predetermined preprocessing on an imaging signal output from an imaging element such as a CCD mounted on an electronic imaging device. In an image processing device according to one embodiment, image data of one frame is divided into a plurality of small rectangular block image data (hereinafter referred to as block lines), and processing is perf...

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Abstract

A data processing apparatus in which pipeline processing is performed comprises a control unit that controls a data processing sequence, a first processing unit that begins first data processing by inputting data on the basis of a start signal, outputs data subjected to the first data processing, and outputs a completion signal to the control unit after completing the first data processing, and a second processing unit that begins second data processing by inputting the data subjected to the first data processing on the basis of a start signal, outputs data subjected to the second data processing, and outputs a completion signal to the control unit after completing the second data processing. The control unit outputs a following start signal to the first processing unit and the second processing unit upon reception of the completion signal of the first data processing and the second data processing respectively.

Description

technical field [0001] The present invention relates to a technique for speeding up pipeline-based data processing. Background technique [0002] Conventionally, in order to perform processing in a plurality of processing units connected in series, there is known a so-called pipeline image processing technology (refer to Japanese JP2000-312327A), in which image data of one frame is divided into areas of a predetermined size, and each processing unit divides the image data into areas of predetermined size. After each area is processed and sent to the next processing department. [0003] However, in the prior art, each processing unit sequentially performs processing on one divided area, and after the processing in the last processing unit is completed, data of the next divided area is input to the first processing unit. Therefore, there is a problem that each processing unit loses time between the processing of one divided region and the processing of the next divided region...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/907H04N5/228H04N23/40
CPCG06T1/20
Inventor 中薗启介上野晃
Owner OLYMPUS CORP
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