redundant time-frequency dictionary 冗余时频原子字典
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The main idea lies in decomposing the difference frame of prediction in a redundant dictionary with much more basis functions, giving up traditional lattice DCT transform.
基本思想是对于预测 误差图像信号的分解，不再采用传统的晶格DCT变换，而是选择采用一个拥有更多基 函数的冗 余字典集合。
For the extremely high complexity of usual algorithms for sparse decomposition, a new group matching pursuit algorithm is presented based on a redundant dictionary with several orthonormal bases.
针对目前冗余字典下信号稀疏分解常用算法计算复杂度高的问题，提出一种分组匹配追踪算法。
My dictionary defines redundant as "superabundant, superfluous, excessive" and redundancy therefore means that there is more than is actually required.
我字典里对于冗余的定义是“超级富余，多余的，过量的”，这样冗余性就意味着实际上并不需要那么多。
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