Intra-frame prediction block partition coding method and system
A technology of intra-frame prediction and encoding method, applied in the field of video encoding and decoding, which can solve problems such as huge amount of calculation
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Embodiment 1
[0110] figure 1 It is a flowchart of an encoding method for intra-frame prediction block division in a preferred embodiment of the present invention; the method includes the following steps:
[0111] Step1: Calculate the first jump value of the horizontal pixel in the current coded macroblock.
[0112] diffh _ 1 = sum 1 ≤ i ≤ 8 ( y ( i , 9 ) - y ( i , 8 ) )
[0113] Among them, diffh_1 represents the first transition value of pixels in the horizontal direction in the current coded macroblock; Indicates the summation of all variables that meet the conditions; y(i,j) i...
Embodiment 2
[0160] figure 2 It is a structural diagram of an encoding system for intra-frame prediction block division in a preferred embodiment of the present invention; the system includes: a first coded macroblock transition value calculation and judgment module, a first intra-frame prediction module, a first judgment module, a second Two intra-frame prediction modules, the best intra-frame prediction mode acquisition module,
[0161] The jump value calculation and judgment module of the first coded macroblock is connected with the first intra prediction module and the first judgment module, and is used to calculate the horizontal and / or vertical jump value in the current coded macroblock, and according to the The jump value determines the intra prediction mode;
[0162] The first intra-frame prediction module is used to skip the 16×16 intra-frame prediction for the current coded macroblock, and directly perform 4×4 intra-frame prediction (that is, directly divide the current coded m...
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Abstract
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