Sparse representation via optimal matching convolution framelets.
IET Signal Processing(2018)
摘要
Recently, a tight frame, called convolution framelets (CFs) and constructed by convolving local and non-local bases, is proposed to provide valuable insights in understanding the patch-based processing approaches in the viewpoint of sparse representation (SR). However, it is still unclear how to represent signals with energy concentration guarantee in its lifted space and how to optimise the local...
更多查看译文
关键词
convolution,Hankel matrices,optimisation,signal representation,speech processing
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要