Three-Dimensional Subband Coding of Video Using the Zero-Tree Method

In this paper, a simple yet highly effective video compression technique is presented. The zero-tree method by Said [3,4], which is an improved version of Shapiro's [1,2] original one, is applied and expanded to three-dimension to encode image sequences. A three-dimensional subband transformation on the image sequences is first performed, and the transformed information is then encoded using the zero-tree coding scheme. The algorithm achieves results comparable to MPEG-2, without the complexity of motion compensation. The reconstructed image sequences have no blocking effects at very low rates, and the transmission is progressive. Key word list: video compression, subband coding, video coding, progressive transmission, image sequence coding 1 INTRODUCTION A video compression scheme needs to exploit both spatial and temporal correlations to be effective. Among many of the techniques, motion compensation is widely used to remove interframe redundancies. Its effectiveness varies depend..