A method and device for selecting an irregularly divided video encoding mode
A coding mode and video coding technology, applied in the field of video coding, can solve the problem of serious over-compression, reduce the subjective and objective efficiency of video coding, and smooth the edges of objects, so as to achieve smooth edges of image objects, improve subjective effects, and improve over-compression. effect of the phenomenon
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Embodiment 1
[0042] Embodiment 1, the present invention provides a method for selecting an irregularly divided video coding mode: see figure 1 , the specific method of this embodiment is:
[0043] Step 101: Presetting the first to tenth block division coding modes;
[0044] The first to tenth block division coding modes are respectively:
[0045] see figure 2 , the coding mode of the first block division is to connect the middle point of the leftmost first column of the macroblock and the upper right corner of the macroblock to form a diagonal line, and the macroblock is divided into two parts by this diagonal line;
[0046] see image 3 , the second block division coding mode is to connect the upper left corner of the macroblock and the middle point of the first rightmost column of the macroblock to form a diagonal line, and the macroblock is divided into two parts by this diagonal line;
[0047] see Figure 4 , the third block division coding mode is to connect the middle point of ...
Embodiment 2
[0082] Embodiment 2. Compared with Embodiment 1, the present invention also provides an irregularly divided video coding mode selection device, which includes a preset unit, a gradient information acquisition unit, a first judgment unit, and a second judgment unit , optimal mode determination unit;
[0083] a preset unit, configured to preset the first to tenth block division coding modes;
[0084] a gradient information acquisition unit, configured to use an edge extraction operator to extract the edge of the image in the current macroblock, and acquire gradient information of the image data in the current macroblock according to the edge of the image;
[0085] a first judging unit, configured to set the binarization result of the image data according to the gradient information;
[0086] The second judging unit is used to select the block division coding mode of the current macroblock according to the binarization result of the image data of the current macroblock;
[0087...
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