Image Coding, Decoding, and Quality Assessment

Low-cost and fast partial decoding of compressed videos

[+] Author Affiliations
Jianmin Jiang, Hui Fang

University of Bradford, School of Informatics, United Kingdom

Shu-Yuan Yang

Chinese Academy of Sciences, Institute of Acoustics, China

J. Electron. Imaging. 13(2), 334-340 (Apr 01, 2004). doi:10.1117/1.1669572
History: Received Feb. 5, 2002; Revised Aug. 15, 2003; Accepted Nov. 21, 2003; Online April 01, 2004
Text Size: A A A

We propose a fast partial decoding algorithm for content access to MPEG compressed videos, where full decompression is not necessarily required, such as compressed video browsing, content analysis, and specific pattern search. The proposed decoding bypasses the inverse DCT via an approximation process to extract average pixels directly from compressed DCT coefficients. Although such extracted pixels may incur differences compared with their fully decompressed counterparts, extensive experiments show that such partially decoded video frames preserve their content very well and achieve reasonable perceptual quality in terms of visual inspections. © 2004 SPIE and IS&T.

© 2004 SPIE and IS&T

Topics

Video

Citation

Jianmin Jiang ; Hui Fang and Shu-Yuan Yang
"Low-cost and fast partial decoding of compressed videos", J. Electron. Imaging. 13(2), 334-340 (Apr 01, 2004). ; http://dx.doi.org/10.1117/1.1669572


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Journal Articles

Related Book Chapters

Topic Collections

PubMed Articles
Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.