5 papers
Prompt-Segmentation Meets ROI Encryption: Fine-Grained Video Protection Based on Diffusion Isolation
Xiang Zhang, Haoyan Lu, Ziqiang Li +4
Region-of-interest (ROI) selective encryption in H.265/HEVC aims to protect sensitive content while preserving the utility of non-ROI regions. Existing coding-unit (CU)-level appro…
A H.265/HEVC Fine-Grained ROI Video Encryption Algorithm Based on Coding Unit and Prompt Segmentation
Xiang Zhang, Haoyan Lu, Ziqiang Li +4
ROI (Region of Interest) video selective encryption based on H.265/HEVC is a technology that protects the sensitive regions of videos by perturbing the syntax elements associated w…
A Video Steganography for H.265/HEVC Based on Multiple CU Size and Block Structure Distortion
Xiang Zhang, Wen Jiang, Fei Peng +3
Video steganography based on block structure, which embeds secret information by modifying Coding Unit (CU) block structure of I-frames, is currently a research hotspot. However, t…
H.265/HEVC Video Steganalysis Based on CU Block Structure Gradients and IPM Mapping
Xiang Zhang, Haiyang Xia, Fan Wang +4
Existing H.265/HEVC video steganalysis research mainly focuses on detecting the steganography based on motion vectors, intra prediction modes, and transform coefficients. However,…
A Visual Perception-Based Tunable Framework and Evaluation Benchmark for H.265/HEVC ROI Encryption
Xiang Zhang, Geng Wu, Wenbin Huang +3
ROI selective encryption, as an efficient privacy protection technique, encrypts only the key regions in the video, thereby ensuring security while minimizing the impact on coding…