Improving security of quantization-index-modulation steganography in low bit-rate speech streams.
Hui TianJin LiuSongbin LiPublished in: Multim. Syst. (2014)
Keyphrases
- low bit rate
- data hiding
- image compression
- bit rate
- video compression
- image quality
- visual quality
- jpeg images
- coding method
- compression algorithm
- least significant bit
- information hiding
- error correction
- video conferencing
- spread spectrum
- motion vectors
- human visual system
- motion compensation
- peak signal to noise ratio
- image sequences
- rate distortion
- subband
- digital images
- wavelet transform
- motion estimation