LIGHT FIELD COMPRESSION BASED ON PREDICTION PROPAGATING AND WAVELET PACKET (WP-P9)

Author(s) : Xu Dong (Department of Automation, Tsinghua University, China) Dai Qionghai (Department of Automation, Tsinghua University, China) Xu Wenli (Department of Automation, Tsinghua University, China)

Abstract : A novel data compression scheme of light field is presented. Different from the prior codecs, we perform image predicting and data coding in a set of subbands not directly in original images. In our approach, firstly the original images are decomposed into subbands using wavelet packet transform, and the corresponding wavelet packet basis are divided into two classes: predictable basis and unpredictable basis by some criterions. In coding, a propagating algorithm and a rhombuses structure is used, and the subbands corresponding to the predictable and unpredictable basis are added sequently by relative energy until the reconstructing images meet the pre-established reconstruction quality. Experiments for two standard light fields verify the efficiency of our approach.

Menu