A Steganalytic Approach to Detect Motion Vector Modification Using Near-Perfect Estimation for Local Optimality.
Hong ZhangYun CaoXianfeng ZhaoPublished in: IEEE Trans. Inf. Forensics Secur. (2017)
Keyphrases
- motion vectors
- motion estimation
- motion compensation
- video sequences
- video coding
- motion estimation algorithm
- block matching
- bit rate
- motion compensated frame interpolation
- spatial domain
- motion field
- macroblock
- reference frame
- video data
- computational complexity
- compressed domain
- prediction error
- accurate estimation
- error concealment
- video compression
- search range
- frame interpolation
- estimation accuracy
- inter frame
- coding efficiency
- image stabilization
- rate distortion
- computer vision
- optical flow
- block size
- spatial correlation
- image data
- frequency domain
- motion model