Empirical study of partial decoding for fast browsing of MPEG-2 compressed videos

Jianmin Jiang; Jie Xia; Chou Huan Hou

doi:10.1117/12.458517

27 February 2002 Empirical study of partial decoding for fast browsing of MPEG-2 compressed videos

Jianmin Jiang, Jie Xia, Chou Huan Hou

Proceedings Volume 4666, Real-Time Imaging VI; (2002) https://doi.org/10.1117/12.458517
Event: Electronic Imaging, 2002, San Jose, California, United States

Abstract

Following a series of successful launch of MPEG standards on video compression, their applications reveal ever increasing needs for their content access without full decompression or in their compressed format. To this end, we further investigated a number of partial decoding schemes to address the issue of efficient content access to compressed video streams. By controlling the number of DCT coefficients involved in the inverse DCT, a number of partial decoding schemes can be designed featuring fast processing speed and low computing cost. By controlling the size of video frames, visually perceptual quality can be adjusted to suit various application including thumbnail image browsing, low resolution image processing, head tracking, skin detection, face recognition, and object segmentation etc. where full resolution frames are often not necessarily required. While achieving improved computing cost and processing speed, our work also features in: (i) reasonably good image quality for content browsing; (ii) compatibility with original MPEG-2 bit streams; and (iii) enormous potential for further application of MPEG-2 in video content management, content-based video frame retrieval, compressed video editing, and low bit-rate video communication such as those involving mobile phones and telephone networks etc. In addition, extensive experiments were carried out and reported to support our design.

Citation Download Citation

Jianmin Jiang, Jie Xia, and Chou Huan Hou "Empirical study of partial decoding for fast browsing of MPEG-2 compressed videos", Proc. SPIE 4666, Real-Time Imaging VI, (27 February 2002); https://doi.org/10.1117/12.458517

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