针对图像稀疏分解的计算时间复杂度非常高这个问题,提出了分块自适应图像稀疏分解算

法。该算法根据稀疏分解计算时间复杂度和待分解图像大小之间的关系,把待分解图像分成互不重

叠的小块,然后对每个小块图像进行稀疏分解。根据每一块的复杂程度,自适应地决定稀疏分解的

结束。-Sparse decomposition of image is very high computational complexity of this problem, a block adaptive image sparse decomposition algorithm. The sparse decomposition algorithm based on complexity and computing time to be decomposition of the relationship between image size, to be non-overlapping decomposition of the image into small pieces, then each small image sparse decomposition. According to the complexity of each piece, adaptive sparse decomposition of the end to decide.