Detection of Double MPEG-2 Compression Based on Distributions of DCT coefficients.
Junyu XuYuting SuQingzhong LiuPublished in: Int. J. Pattern Recognit. Artif. Intell. (2013)
Keyphrases
- dct coefficients
- compressed domain
- jpeg images
- discrete cosine transform
- dct domain
- compression standards
- image compression
- block dct
- transform domain
- jpeg compression
- pixel domain
- jpeg compressed images
- digital video
- discrete cosine transformation
- multimedia
- shape coding
- feature vectors
- video analysis
- event detection
- motion vectors
- compression ratio
- low frequency
- image blocks
- compression algorithm
- compressed images
- image quality
- video coder
- motion estimation
- video sequences
- high quality
- watermarking algorithm