A Compression Method for Image Sequences

Abstract

We propose in this paper a new method of coding the sequence of images by the "overcomplete discrete wavelet transform" (ODWT). The method is theoretically described, and the main resdt demonstrated is included in the proposition: "The translated function with any integer multiple of the sampling period, is complete represented in the wavelet space by one of the ODWT members".This is the important result that lies at the basis of the motion estimation and motion compensation scheme in transformed wavelet space. A block scheme and a short description of the processing done in each block is given.

In-Band Disparity Compensation for Multiview Image Compression and View Synthesis

“…However, reconstructed images for the limited display size still suffer from the drift problem. Direct prediction at the smaller size could eliminate this difficulty by using in-band motion estimation which predicts subband-tosubband [9]. However, the shift variance as a result of the decimation process in the wavelet transform frequently causes the inefficient estimation in high-pass subbands.…”