| 摘要 |
<p>A method and device for selecting irregular division video coding modes are provided. The method includes: presetting a first to tenth block division coding modes; extracting an image edge in a current macroblock by utilizing an edge extraction operator, and acquiring gradient information of the image data in the current macroblock according to the image edge; setting an image data binarized result according to said gradient information; selecting a block division coding mode for the current macroblock according to the image data binarized result of the current macroblock; and outputting the block division coding mode of the current macroblock and the conventional rectangular block division mode into a coder mode selection module, for selecting an optimal block division coding mode of the current macroblock. Through the method provided by the invention, the overcompression of an object edge in the coded image can be effectively improved, the object edge in the coded image is smoother, and the subjective effect of the coding is effectively promoted.</p> |
