Regular Articles

Efficient rate control approach for JPEG2000 image coding

[+] Author Affiliations
Singara Singh

Thapar University, School of Mathematics and Computer Applications, Patiala, Punjab, India

Rajendra Kumar Sharma

Thapar University, School of Mathematics and Computer Applications, Patiala, Punjab, India

Mahesh Kumar Sharma

Thapar University, School of Mathematics and Computer Applications, Patiala, Punjab, India

J. Electron. Imaging. 21(3), 033004 (Jul 11, 2012). doi:10.1117/1.JEI.21.3.033004
History: Received June 15, 2011; Revised May 28, 2012; Accepted June 4, 2012
Text Size: A A A

Abstract.  JPEG2000, the new image coding standard, is more efficient when compared with the old JPEG standard. However, most of the computations and memory usage in post-compression rate distortion (PCRD) optimization scheme in JPEG2000 is redundant. We propose an efficient rate control approach for the JPEG2000 encoder. In this approach, optimal rate distortion (RD) slope threshold is selected using the minimum RD slope of lower level horizontally and vertically low pass (LL0) subband of the wavelet decomposed image. Also, the passes of the code blocks of other subbands, whose RD slopes are less than the optimal RD slope, are skipped. The proposed approach reduces memory requirements and encoding time when compared with the existing rate control approaches for JPEG2000 standard, and also provides the same image quality as that of the PCRD approach used in the JPEG2000 standard.

Figures in this Article
© 2012 SPIE and IS&T

Citation

Singara Singh ; Rajendra Kumar Sharma and Mahesh Kumar Sharma
"Efficient rate control approach for JPEG2000 image coding", J. Electron. Imaging. 21(3), 033004 (Jul 11, 2012). ; http://dx.doi.org/10.1117/1.JEI.21.3.033004


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 Book Chapters

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.