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Data loading device and method for motion search area

A technique of data loading and motion search, applied in the field of motion estimation

Inactive Publication Date: 2011-06-15
SHENZHEN COSHIP ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is that in the process of processing high-resolution images, the processing power of the CPU is not enough to complete the full search motion estimation algorithm. Calculations

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  • Data loading device and method for motion search area
  • Data loading device and method for motion search area
  • Data loading device and method for motion search area

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] As shown in Fig. 1, the present invention provides a kind of data loading device of motion search area, and it comprises external memory (namely image level external memory), data loading controller, comparison memory group (namely search window comparison memory group), comparison The block index controller, the reference block register group, at least one comparison stripe memory group are used as the second-level cache, and the comparison block register groups corresponding to each comparison stripe memory group are used as the first-level cache, and each comparison block register group is respectively connected to its difference comparison unit; wherein, the external memory is used to store at least one image, and load the data of the current search window of the image to the comparison memory group; the comparison memory group is u...

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Abstract

The invention discloses data loading equipment of a motion searching region, which comprises an external memorizer, a data loading controller, a comparing memorizer group, a comparing block index controller, a reference block register group, at least a comparing striping memorizer group, a corresponding comparing register group and a difference comparing unit; the external memorizer loads data ofan image in a current searching window to the comparing memorizer group; the comparing index controller calculates and outputs comparing block index data, and the data loading controller controls thecomparing memorizer group and distributes data for each comparing striping memorizer group; the comparing striping memorizer group distributes data in sequence to the corresponding comparing block register group in a parallel way; the comparing striping memorizer group provides data for the difference comparing unit in group in a parallel way; absolute difference sum of a residual block can be calculated according to the data of a reference block; therefore, parallel processing number can be increased; deficiency in computing ability of a processor can be solved and calculated amount needed by estimation algorithm of full search motion can be realized.

Description

technical field [0001] The present invention relates to motion estimation technology in the field of video compression coding and digital video format conversion, in particular to a data loading device and method for a motion search area. Background technique [0002] When the video encoder generates video, it must comply with international standards for video compression, such as H.261, H.263, MPEG-1, MPEG-2, MPEG-4, AVC, AVS, MPEG-7, and MPEG-21, etc. Conforms to each standard bitstream. Therefore, motion estimation technology is widely used in the fields of video compression coding and digital video format conversion, so as to reduce the bandwidth required to transmit digital video data with a given image quality as much as possible. [0003] Specifically, video coding methods mainly include intra-frame compression and inter-frame compression, and inter-frame compression is the main source of its compression ratio. Therefore, most existing video compression standards ado...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/26G06T7/20H04N19/43H04N19/51H04N19/61
Inventor 李刚谭舒亮
Owner SHENZHEN COSHIP ELECTRONICS CO LTD