1 July 1989 Interframe Hierarchical Vector Quantization
Author Affiliations +
Abstract
An interframe hierarchical vector quantizer (IHVQ) is presented that is capable of encoding image sequence scenes at rates below 0.3 bit per pixel per frame. A regular decomposition quadtree method is used to segment the interframe differential signal into homogeneous regions of different block size. Small blocks representing high contrast moving boundaries (i.e., the impulsive component of the difference signal) are vector quantized, whereas large blocks typically representing smooth regions of the image are encoded by the local sample mean of the region. The IHVQ system has a signal-to-noise ratio (SNR) at least 2 dB higher than the SNR of the interframe mean-reconstructed quadtree coding system.
Nasser M. Nasrabadi, Shihkuan E. Lin, Yushu Feng, "Interframe Hierarchical Vector Quantization," Optical Engineering 28(7), 287717 (1 July 1989). https://doi.org/10.1117/12.7977028 . Submission:
JOURNAL ARTICLE
9 PAGES


SHARE
RELATED CONTENT

Region based time varying image coding at low bit rate...
Proceedings of SPIE (April 21 1995)
Fractal transform coding of color images
Proceedings of SPIE (September 16 1994)
Variable-block-size double predictor DPCM image coding
Proceedings of SPIE (May 30 2000)
Interframe hierarchical address-vector quantization
Proceedings of SPIE (September 01 1990)
Rate-constrained motion estimation
Proceedings of SPIE (September 16 1994)

Back to Top