Adaptive 3D subband video coding

Yong-Kwan Kim; Rin Chul Kim; Sang Uk Lee

doi:10.1117/12.233200

27 February 1996 Adaptive 3D subband video coding

Yong-Kwan Kim, Rin Chul Kim, Sang Uk Lee

Proceedings Volume 2727, Visual Communications and Image Processing '96; (1996) https://doi.org/10.1117/12.233200
Event: Visual Communications and Image Processing '96, 1996, Orlando, FL, United States

Abstract

In this paper, we propose a temporally adaptive three-dimensional subband coding (3D SBC) technique to effectively exploit the temporal activities in the input video. By using the rate- distortion performance measure, we show the optimal number of temporal subbands can be easily determined. The base temporal subband, which yields much concentrated energy, is encoded using H.261-like motion compensated discrete cosine transform technique. While in the higher temporal subbands, the two-dimensional adaptive wavelet packet bases are employed to exploit the various energy distributions, due to the moving components. In encoding the subbands, we employ adaptive scanning methods, followed by uniform step-size quantization with variable length coding, and coded/not-coded flag reduction technique based the quadtree structure. From the simulation results, the proposed 3D SBC provides about 0.29 to approximately 3.14 dB PSNR gain over the H.261 and the temporally fixed 3D SBC techniques.

Citation Download Citation

Yong-Kwan Kim, Rin Chul Kim, and Sang Uk Lee "Adaptive 3D subband video coding", Proc. SPIE 2727, Visual Communications and Image Processing '96, (27 February 1996); https://doi.org/10.1117/12.233200

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