Method and device for intra-frame prediction and intra-frame prediction-based encoding/decoding method and system
An intra-frame prediction and coding technology, which is used in television, electrical components, and image communication. Effect
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[0032] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0033] refer to image 3 , image 3 It is a flow chart of the steps of an embodiment of an intra prediction method in the present invention, including the following steps:
[0034] Step S1, determine the adjacent blocks of the M×N block to be predicted, and select K reference sample points P from the adjacent blocks according to the length K of the filter k , the K reference sample points form a set of sample points used for intra prediction {P k}, wherein, k=0, 1, 2, ..., K-1, K is a natural number and K>1; M, N are natural numbers.
[0035] Step S2, the step of determining the prediction weight coefficient, selects the prediction direction m, respectively for each sample point C to be predicted in the block to be predicted i...
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