H.264/AVC frame inner prediction method based on edge characteristics
An intra-frame prediction and edge feature technology, applied in the field of intra-frame prediction, H.264/AVC intra-frame prediction based on edge features, can solve the problems of high encoder complexity and difficulty in real-time encoding, and reduce algorithm complexity degree, good practical value and application prospect, and the effect of improving the encoding speed
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[0038] See figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 Shown, a kind of H.264 / AVC intra prediction method based on edge feature, the specific implementation steps of this method are as follows:
[0039] Using H.264 / AVC reference software JM8.6 as the platform to carry out simulation experiments. The experimental test conditions meet the Baseline Profile requirements of H.264, the coding sequence is III, using Hadamard transform and rate-distortion optimization; for QCIF (4:2:0) and CIF (4:2:0) sequences, the coding length is 100 frames, the frame rate is 30f / s.
[0040] (1) In intra prediction, the predicted block P is formed based on the coded reconstructed block and the current block. For luma pixels, P blocks are used for correlation operations of 4×4 sub-blocks or 16×16 macroblocks; for chrominance pixels, P blocks are used for correlation operations of 8×8 macroblocks. figure 1 It is a schematic diagram of adjacent position pixels and prediction direct...
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