Video compression using adaptive wavelet packet and DPCM

Wei-Lien Hsu; Haluk Derin

doi:10.1117/12.228225

8 December 1995 Video compression using adaptive wavelet packet and DPCM

Wei-Lien Hsu, Haluk Derin

Proceedings Volume 2605, Coding and Signal Processing for Information Storage; (1995) https://doi.org/10.1117/12.228225
Event: Photonics East '95, 1995, Philadelphia, PA, United States

Abstract

This paper presents an efficient temporal, spatial and frequency decomposition method for improving the performance of the existing methods for 3D subband coding of video signals. In this method, a given video sequence is first partitioned into constant-sized 'groups' of frames. Within each group, every two consecutive frames are decomposed into low and high temporal subbands by a two-tap temporal filter. The redundancy in the low temporal subbands is removed by a closed loop DPCM unit. The low and high subbands of the first pair of frames, the difference of the low subbands from the DPCM loop and the high subbands of the subsequent pairs of frames in the 'group' are then divided into image blocks of equal size, such that each block can be efficiently decomposed by an adaptive wavelet packet based on a rate-distortion criterion. The subbands of wavelet packets for all blocks are quantized by a hybrid scalar/pyramidal lattice vector quantizer. This scheme achieves minimum distortion under a rate constraint specified for the 'groups' of frames and under the structural constraints of the algorithm. In this scheme, the motion compensation is not used explicitly, but the effects of motion are accounted for through the low-high temporal subbanding and the DPCM procedure. The results compare favorably with those of traditional video coding techniques. Although the computational complexity of this scheme is higher than that of the existing 3D subband method, it is suitable for parallel implementation.

Citation Download Citation

Wei-Lien Hsu and Haluk Derin "Video compression using adaptive wavelet packet and DPCM", Proc. SPIE 2605, Coding and Signal Processing for Information Storage, (8 December 1995); https://doi.org/10.1117/12.228225

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available