Paper
21 September 1994 Video coding using entropy-constrained trellis coded quantization
Robert E. Van Dyck, Nader Moayeri, Thomas G. Marshall Jr., Melissa Chin
Author Affiliations +
Abstract
Subband coding is becoming a viable compression method for video transmission, since the subband system can be efficiently split into a base layer and an enhancement layer without incurring any overhead. This is desirable in ATM and other packet networks. The base layer can be a standard coding algorithm such as H.261 or MPEG. In a subband-based video coding system, the higher-frequency subbands contain a small amount of the signal energy, but a large fraction of the subband data. Coarsely quantizing this higher-frequency information can achieve the desired bit rate, but will lead to lower resolution since the high frequency edges are perceptually important. In this paper, methods are studied to minimize the distortion of the coarsely coded higher frequency subbands through the use of entropy-constrained trellis coded quantization (ECTCQ) and entropy-constrained vector quantization (ECVQ).
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Robert E. Van Dyck, Nader Moayeri, Thomas G. Marshall Jr., and Melissa Chin "Video coding using entropy-constrained trellis coded quantization", Proc. SPIE 2298, Applications of Digital Image Processing XVII, (21 September 1994); https://doi.org/10.1117/12.186597
Lens.org Logo
CITATIONS
Cited by 4 scholarly publications and 3 patents.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Quantization

Distortion

Computer programming

Video coding

Video

Image quality

Wavelets

RELATED CONTENT


Back to Top