A Video Compression Algorithm for ATM Networks with ABR Service, Using Visual Criteria
IDMS '99 Proceedings of the 6th International Workshop on Interactive Distributed Multimedia Systems and Telecommunication Services
Content-aware video adaptation under low-bitrate constraint
EURASIP Journal on Advances in Signal Processing
A perceptually optimized JPEG-LS coder for color images
SPPR'07 Proceedings of the Fourth conference on IASTED International Conference: Signal Processing, Pattern Recognition, and Applications
No-reference noticeable blockiness estimation in images
Image Communication
Content-based distortion control scheme for high-quality wireless multimedia services
EURASIP Journal on Wireless Communications and Networking - Intelligent Systems for Future Generation Wireless Networks
A JND Guided Foveation Video Coding
PCM '08 Proceedings of the 9th Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing
Spatio-temporal just noticeable distortion profile for grey scale image/video in DCT domain
IEEE Transactions on Circuits and Systems for Video Technology
Perception-oriented video coding based on foveated JND model
PCS'09 Proceedings of the 27th conference on Picture Coding Symposium
Adaptive Block-Size Transform Based Just-Noticeable Difference Profile for Images
PCM '09 Proceedings of the 10th Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing
A perceptually optimized JPEG-LS coder for color images
SPPRA '07 Proceedings of the Fourth IASTED International Conference on Signal Processing, Pattern Recognition, and Applications
Fast JND-based video carving with GPU acceleration for real-time video retargeting
IEEE Transactions on Circuits and Systems for Video Technology
A polygon soup representation for multiview coding
Journal of Visual Communication and Image Representation
Perceptually-friendly H.264/AVC video coding
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Perceptual visual quality metrics: A survey
Journal of Visual Communication and Image Representation
Perceptually tuned subband coder for JPEG
Journal of Real-Time Image Processing
Perceptual auto-regressive texture synthesis for video coding
Multimedia Tools and Applications
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Visual communication over wireless channels is becoming important in multimedia. Because of the limited bandwidth and high error rates of the wireless channel, the video codec should be designed to have high coding efficiency in maintaining acceptable visual quality at low bit rates and robustness to suppress the distortion due to transmission errors. The coding efficiency of a 3D subband video codec is optimized by removing not only the redundancy due to spatial and temporal correlation but also perceptually insignificant components from video signals. Unequal error protection is applied to the source code bits of different perceptual importance. An error concealment method is employed to hide the distortion due to erroneous transmission of perceptually important signals. The evaluation of each signal's perceptual importance is made first from measuring the just-noticeable distortion (JND) profile as the perceptual redundancy inherent in video signals, and then from allocating JND energy to signals of different subbands according to the sensitivity of human visual responses to spatio-temporal frequencies. Simulation results show that acceptable visual quality can be maintained in transmitting video sequences with low bit rates (<64 kbps) over the wireless channel of high error rates (up to BER=10-2 ), and the distortion due to erroneous transmission of coded data can be effectively suppressed. In the simulation, the noisy channel is assumed to be corrupted by the random errors depending on the average strength of the received wave and the burst errors due to Rayleigh fading