A Temporally Adaptive Layered Image Coding Technique Based on the 3D SBC for ATM Networks
✍ Scribed by Yong Kwan Kim; Rin Chul Kim; Sang Uk Lee
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 447 KB
- Volume
- 9
- Category
- Article
- ISSN
- 1047-3203
No coin nor oath required. For personal study only.
✦ Synopsis
in that the corresponding data may be lost, depending on the channel condition. In those systems employing the In this paper, a temporally adaptive layered image coding technique employing the 3D subband coding is proposed. By layered coding techniques, the basic quality of the reconusing the R-D performance measure, the input image is divided structed image is maintained by the base layer, even if the adaptively into temporal image layers, according to the tempotransmitted data suffer from severe channel errors.
ral activity. Then, while the base layer is encoded by the H.261,
Here, note that different error resilience capability can the enhancement layer is encoded by the 3D SBC technique. be achieved by selective protection or by prioritized trans-From the simulation results, the proposed technique shows mission. It is also noted that the method of packetization about 1 dB PSNR gain over the conventional layered coding into fixed-size cells is widely employed to facilitate the techniques, including the twin-H.261, even under heavy netmanipulation of data and interworking between different work loading.