A fast calibration method for video region of interest
A technology of region of interest and calibration method, which is applied in the field of video data processing and can solve the problems of complex computing methods and not suitable for terminals or situations with limited processor capabilities.
Active Publication Date: 2019-05-31
北京安信智通科技有限公司
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[0011] In order to solve the problem in the prior art that the calculation method of video region of interest calibration is complex and unsuitable for terminals or situations with limited processor capabilities, the present invention provides a method and device for fast video region of interest calibration
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[0055] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0056] figure 1 It is a flow chart of the video region of interest rapid calibration method in the embodiment, and the method includes:
[0057] Step 101, determine the target frame image in the video data;
[0058] Step 102, determining the first component image data and the second component image data in the target frame image;
[0059] Step 103, calculating the threshold TH of the first component image data, the difference threshold DTH between the first component image data and X times the second component image data;
[0060] Step 104, according to the threshold TH, the difference threshold DTH, the value of the first component and the value of the second comp...
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The present invention discloses a method and device for rapid calibration of a video region of interest. The method includes: determining a target frame image in video data; determining the first component image data and the second component image data in the target frame image; calculating the first component image data A threshold TH of the component image data and calculate the difference threshold DTH of the first component image data and the second component image data of X times; according to the threshold TH, the difference threshold DTH, the target frame image The value of the first component and the value of the second component of the pixels in each macroblock determine the macroblock in the human face or skin area, and the set of the macroblocks is used as the region of interest of the target frame image. The present invention provides an accurate, simple and fast method for marking a region of interest in a video, and marks a human face region in a dynamic video image, and is especially suitable for terminals and application scenarios with limited processor capabilities.
Description
technical field [0001] The invention relates to a video data processing method, in particular to a method and a device for quickly marking a video region of interest. Background technique [0002] With the continuous improvement of the Internet and mobile Internet infrastructure, as well as the upgrading of cellular mobile communication networks, people are increasingly using video calls or video calls as a means of long-distance communication in their lives and work. However, due to various factors such as insufficient network bandwidth, excessive network transmission load, and continuous improvement of video image resolution, traditional video coding technology cannot guarantee users to obtain high-quality video images. After years of development, video coding technology is gradually approaching the limit of compression ratio. How to further obtain higher-quality video images subjectively perceived by viewers on the basis of a relatively stable compression ratio is one of ...
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IPC IPC(8): G06K9/00
CPCG06V40/162G06V40/161
Inventor 李永溢徐家骏江周平
Owner 北京安信智通科技有限公司