Method, system and device for identifying region of interest
A technology of region of interest and identification method, applied in the field of identification method, system and equipment of region of interest, can solve the problems of inaccurate region of interest, mutation of region of interest, etc., and achieve the effect of accurate region of interest
Active Publication Date: 2020-03-27
CHINANETCENT TECH
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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
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[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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The invention discloses a method, system and device for identifying a region of interest, and the method comprises the steps: obtaining a current image set in a to-be-analyzed video according to a current frame in the to-be-analyzed video and the coding sequence of the to-be-analyzed video; according to an inverse sequence opposite to the coding sequence, reversely transmitting the significance value of each video frame in the current image set to a corresponding reference frame in sequence so as to update the significance image of each video frame in the current image set; and generating a marked salient image and a template salient image according to the updated salient image of the current frame, and reconstructing the updated salient image of the current frame based on the marked salient image and the template salient image so as to identify a region of interest in the current frame according to the reconstructed salient image. According to the method provided by the invention, therecognition precision of the region of interest can be improved.
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...
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IPC IPC(8): H04N19/88H04N19/167
CPCH04N19/167H04N19/88
Inventor 黄学辉
Owner CHINANETCENT TECH