A Quality Scalable Video Coding Method Based on Mean Square Error Threshold
A mean square error and video coding technology, applied in the field of video coding, can solve the problem of high complexity of quality scalable video coding algorithms, achieve excellent clustering performance, improve compression performance, and reduce complexity.
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[0034] A quality scalable video coding method based on the mean square error threshold, which uses a two-layer coding method. First, the video image is divided into blocks, and a feature pattern library with a larger size pattern vector is used for coding the base layer; then for The image blocks with larger mean square error are further segmented, and these segmented image blocks are encoded by using a feature pattern library with a smaller size pattern vector to form an enhancement layer. Specific steps are as follows:
[0035] Step 1. The base layer feature pattern library is generated. Each frame image of the video to be encoded is divided into blocks with a specified large size, and the obtained image blocks are used as a training vector set and trained by self-organizing mapping method to obtain a base layer feature pattern library.
[0036] Step 1.1, decompose the video to be encoded into images frame by frame, and then divide all images into 16×16 image blocks to form...
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