134 citations · 136 across the 3 of their papers we have counts for
3 papers
cs.IT2017
Greedy Sparse Signal Reconstruction Using Matching Pursuit Based on Hope-tree
Zhetao Li, Hongqing Zeng, Chengqing Li +1
The reconstruction of sparse signals requires the solution of an -norm minimization problem in Compressed Sensing. Previous research has focused on the investigation of a s…
cs.CR2015★ 2 cited
An optical image encryption scheme based on depth-conversion integral imaging and chaotic maps
Xiaowei Li, Chengqing Li, Seok-Tae Kim +1
Integral imaging-based cryptographic algorithms provides a new way to design secure and robust image encryption schemes. In this paper, we introduce a performance-enhanced image en…
cs.CR2013★ 134 cited
Cryptanalyzing image encryption using chaotic logistic map
Chengqing Li, Tao Xie, Qi Liu +1
Chaotic behavior arises from very simple non-linear dynamical equation of logistic map which makes it was used often in designing chaotic image encryption schemes. However, some pr…