Low code rate space domain enhancement layer encoding and decoding method based on interested region
A technology of region of interest and coding method, which is applied in the field of scalable video coding, can solve the problem of transmitting large bits, and achieve the effect of reducing the number of bits and improving the PSNR value
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[0027] The present invention provides a method for coding a low-bit-rate spatial domain enhancement layer based on an area of interest. The spatial domain enhancement layer is based on a scalable video codec standard, and the present invention is referred to as an enhancement layer for short. This method loads the ROI information from the base layer, cuts the original input image of the enhancement layer according to the ROI information, and encodes the ROI obtained after clipping. For the special requirements of security monitoring, the invention extracts the region of interest from the enhancement layer for encoding, and ignores the images of other non-critical regions, thereby reducing the code rate of the airspace enhancement layer and ensuring the quality of the video information of the region of interest in the airspace enhancement layer. Then, combined with the common coding method of the existing technology, the principle of the complete image coding process can be fo...
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