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A storage method for image data

An image data and data technology, applied in the field of image data storage, can solve the problem that the image data storage method cannot be applied to sparse matrix data storage, etc., and achieve the effect of improving access performance and wide application prospects.

Inactive Publication Date: 2011-12-21
NO 771 INST OF NO 9 RES INST CHINA AEROSPACE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the requirement that the existing image data storage method cannot be applied to sparse matrix data storage, the present invention provides an image data storage method that can adapt to compact matrix and sparse matrix

Method used

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  • A storage method for image data
  • A storage method for image data
  • A storage method for image data

Examples

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Embodiment 1

[0047] Take the storage mode 10 in Table 1 as an example to further illustrate the method of the present invention below:

[0048] The image data that the external control unit needs to store is the reference image image data QDin, the A matrix of the storage mode MemMode=10, the image dimension ImgDimx=6*6:

[0049] A = 0 5 0 0 0 2 1 0 0 0 0 0 0 2 0 0 ...

Embodiment 2

[0069] Take the storage mode MemMode=11 in table 1 as example to further illustrate the method of the present invention below:

[0070] The image data that the external control unit needs to store is the template image image data QDin, the storage mode MemMode=11, and the B matrix whose image dimension is 6*6:

[0071] B = ( 1 , 2 ) ( 0,0 ) ( 0,0 ) ( 0,0 ) ( 0,0 ) ...

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Abstract

The invention discloses a method for storing image data, which is characterized in that the storage array block is divided into eight sub-blocks, and when the storage control block writes the image data into the storage array block, a point-by-point storage method is adopted for the compact matrix, and the The sparse matrix adopts the storage method of CSR format, and the reference image data and template image data are stored in four different storage modes MemMode: single-element compact matrix 00, double-element compact matrix 01, single-element sparse matrix 10 and double-element sparse matrix 11 into eight subblocks. The storage control block adopts the same control for the reference map and the template map of the storage array block, realizes the parallel access of the image data of the reference map and the template map, and realizes the intelligent access of the image data for different image data characteristics at the same time.

Description

technical field [0001] The invention relates to an image data storage method in an image processing device. Background technique [0002] Image matching is a basic problem in image processing. It is to operate two images (referred to as reference image and template image) according to a certain algorithm, and draw corresponding results and conclusions according to the operation results and criteria. Among them, the image data is stored and operated in the form of matrix. There are two types of such matrices: one is a matrix in which all data are non-zero, called a compact matrix; the other is a matrix in which a large number of elements are zero, called a sparse matrix. The larger the matrix, the more image data needs to be stored, and the larger the storage space required. In order to meet the needs of different operations, effectively save storage space, and improve data storage access performance, a new image data storage method is needed in image processing equipment. ...

Claims

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Application Information

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IPC IPC(8): H04N1/21
Inventor 巨新刚刘红侠杨靓
Owner NO 771 INST OF NO 9 RES INST CHINA AEROSPACE SCI & TECH
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