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A method, system and device for identifying a region of interest

A technology of region of interest and recognition method, applied in the field of system and equipment, recognition method of region of interest, can solve problems such as inaccurate region of interest, mutation of region of interest, etc., and achieve accurate effect of region of interest

Active Publication Date: 2021-05-25
CHINANETCENT TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the region of interest identified in this way is usually not accurate enough, and there may be mutations in the region of interest between adjacent frames

Method used

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  • A method, system and device for identifying a region of interest
  • A method, system and device for identifying a region of interest
  • A method, system and device for identifying a region of interest

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Embodiment Construction

[0014] In order to make the purpose, technical solution and advantages of the present application clearer, the following will clearly and completely describe the technical solution of the present application in combination with specific implementation methods of the present application and corresponding drawings. Apparently, the described implementations are only some of the implementations of this application, not all of them. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0015] An embodiment of the present application provides a method for identifying a region of interest, which can be used to identify a region of interest from each video frame in a video to be analyzed. In practical applications, each video frame in the video to be analyzed can be converted into a corresponding saliency image. ...

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Abstract

The invention discloses a method, system and equipment for identifying an area of ​​interest, wherein the method includes: according to the current frame in the video to be analyzed and the encoding sequence of the video to be analyzed, acquiring The current image set: according to the reverse order of the encoding sequence, the saliency value of each video frame in the current image set is transferred in reverse order to the corresponding reference frame, so as to update the saliency value of each video frame in the current image set generating a marked saliency image and a template saliency image based on the updated saliency image of the current frame, and reconstructing the updated saliency image of the current frame based on the marked saliency image and the template saliency image, and identify the region of interest in the current frame according to the reconstructed saliency image. The technical solution provided by the present application can improve the recognition accuracy of the region of interest.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a method, system and equipment for identifying a region of interest. Background technique [0002] With the continuous development of high-definition video, the bandwidth required to transmit high-definition video is also increasing. Considering the cost of bandwidth, when encoding high-definition video, different bit rates are usually assigned to different areas in the video frame, so that the key areas can be as clear as possible while keeping the total bit rate unchanged. degree increase. [0003] In order to realize the above-mentioned solution, when encoding the video, it is necessary to identify the areas of interest to the human eye in each video frame, and then allocate more code rates to the areas of interest to the human eye, while for other parts of the area Less code rate can be allocated. At present, when identifying the region of interest, the vi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/88H04N19/167
CPCH04N19/167H04N19/88
Inventor 黄学辉
Owner CHINANETCENT TECH