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Access method and system of compressed video

An access method and video technology, which is applied to the components of TV systems, TVs, color TVs, etc., can solve the problems of being unable to quickly browse arbitrary frame images, and cannot realize fast browsing of images, etc., to achieve the effect of fast browsing

Inactive Publication Date: 2011-08-03
常熟市广播电视总台
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. It is impossible to quickly browse the image;
[0006] 2. It is impossible to quickly browse any frame image

Method used

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  • Access method and system of compressed video
  • Access method and system of compressed video
  • Access method and system of compressed video

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing, the technical scheme of invention is described in detail:

[0022] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0023] Such as Figure 5 As shown, the access system of the compressed video access method includes a CCD camera, an image acquisition and compression module, and an image storage module composed of a memory, wherein the output of the CCD camera is sequentially connected to the image acquisition and compression module and the memory.

[0024] The memory is composed of a first storage area and a second storage area, the first storage area is used to store frame basic information, and the second storage area is used to store image detailed information; the first storage area is divided into a plurality of equal-length sub-blocks , the number of subblocks is greater than the number ...

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Abstract

The invention discloses an access method and an access system of a compressed video. The method is realized by using a memory. The memory is divided into a first memory area and a second memory area, wherein the first memory area is used for storing the basic information of frames; the second memory area is used for storing the detailed information of images; the first memory area is divided intoa plurality of equal-length sub-blocks; the number of the sub-blocks is greater than that of the stored frames; each sub-block is used for storing frame numbers, thumbnails, compressed code lengths and addresses; and the length of each sub-block is sufficient to store the frame numbers, thumbnails, compressed code lengths and addresses. The system comprises a CCD camera, an image acquiring compression module and an image storage module. The method and the system can realize video data access conveniently.

Description

technical field [0001] The invention relates to the field of high-speed real-time data processing, in particular to a compressed video fast access method and access system. Background technique [0002] The amount of data for high-resolution video is staggering. For example, for a pixel resolution as high as 9216×9216, the data volume of a single image with a data resolution of 12 bits is as high as 162MB. Although real-time compression can alleviate the data capacity, on the one hand, limited by the compression ratio, it puts pressure on the fast access and browsing of compressed videos. On the other hand, since the image content of each frame is different, the length of image data of each frame after compression is unequal. [0003] With the improvement of image pixel resolution, the amount of video data is increasing day by day. The storage and access of huge amounts of data is a very important issue. On the one hand, due to the huge amount of image data, on the other...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/06H04N5/917
Inventor 陈苏婷
Owner 常熟市广播电视总台