58 citations · 75 across the 3 of their papers we have counts for
3 papers
cs.CR2023
Recovering the Block-wise Relationship in an Encryption-Then-Compression System
Chengqing Li, Sheng Liu
Joint encryption and compression is an ideal solution for protecting security and privacy of image data in a real scenario, e.g. storing them on an existing cloud-based service lik…
cs.CV2022★ 17 cited
Recovering Sign Bits of DCT Coefficients in Digital Images as an Optimization Problem
Ruiyuan Lin, Sheng Liu, Jun Jiang +3
Recovering unknown, missing, damaged, distorted, or lost information in DCT coefficients is a common task in multiple applications of digital image processing, including image comp…
cs.CR2021★ 58 cited
Cryptanalyzing two image encryption algorithms based on a first-order time-delay system
Sheng Liu, Chengqing Li, Qiao Hu
Security is a key problem for the transmission, interchange and storage process of multimedia systems and applications. In 2018, M. Li et al. proposed in-depth security analysis on…