Method and system for encoding region of interest by limited variable bit rate control

A region of interest and variable bit rate technology, applied in the field of region of interest encoding methods and systems, can solve problems such as redundant hardware or software costs, improve image quality, save encoding bit rates, and reduce encoding and decoding complexity. Effect

Active Publication Date: 2010-12-29
IND TECH RES INST
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Problems solved by technology

If you want to provide high-resolution images, you may incur redundant hardware or software costs

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  • Method and system for encoding region of interest by limited variable bit rate control
  • Method and system for encoding region of interest by limited variable bit rate control
  • Method and system for encoding region of interest by limited variable bit rate control

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Embodiment Construction

[0033] The following examples are given to illustrate them in detail, together with the accompanying drawings. figure 1 7, a detailed description is provided, and different embodiments are provided to illustrate different implementations according to the technical features of the present invention. Wherein, the configuration of each element in the embodiment is for illustration, and not for limiting the implementation manner. In addition, some of the reference numerals in the drawings in the embodiments are repeated for the purpose of simplifying the description, and do not mean the correlation between different embodiments.

[0034] The following description will be given by taking a region of interest (ROI) utilizing the H.264 feature of multiple moving priority regions as an implementation example.

[0035] Disclosed is a method and system for coding a region of interest using limited variable bit rate control, including a single fixed ROI / multiple moving ROI block decisio...

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Abstract

The invention relates to a method and system for encoding a region of interest by limited variable bit rate control, which improves the picture quality of images of a motion region and a region of interest of human eyes at a limited bit rate, and achieves the purpose of saving the encoding bit rate by rejecting high-frequency coefficient information of much background images. Compared with ROI encoding by constant bit rate control (CBR) taking a traditional rate-distortion model as the basis, the limited variable bit rate control algorithm of the invention is matched with a quick block decision mechanism, has lower encoding and decoding complexity, and is more suitable for an instant monitoring coding system.

Description

technical field [0001] The present invention relates to a region of interest encoding method and system, and in particular, to a region of interest (Regions Of Interest, ROI) encoding method and system using limited variable bit rate control. Background technique [0002] Due to the increasing demand for video surveillance, video coding is becoming more and more important in the field of video processing. In video processing, a specific area in a picture is called a region of interest (hereinafter referred to as ROI). The conventional video coding technology regards the priority of all macroblocks (Macroblocks) in a picture as the same. As a result, the more important macroblocks in the picture may not be clearly displayed. [0003] For example, in video surveillance processing, ROI usually refers to the face area. Without special processing, in order to make the video presentation without delay, the face area and other moving areas in the picture will not be Very clear. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N19/146H04N19/167H04N19/176
Inventor 黄崇明林群惟沈志圣
Owner IND TECH RES INST
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