NDLI: Integer computation of JPEG2000 wavelet transform and quantization for lossy compression

Content Provider	IEEE Xplore Digital Library
Author	Balster, E.J. Fortener, B.T. Turri, W.F.
Copyright Year	2010
Description	Author affiliation: Dept. of Electrical and Computer Engineering, University of Dayton, Kettering Laboratory, rm 341 300 College Park, OH 45469, USA (Balster, E.J.; Fortener, B.T.; Turri, W.F.)
Abstract	In this paper, an integer-based CDF 9/7 wavelet transform as well as an integer quantization method used in a lossy JPEG2000 compression engine is presented. The conjunction of both an integer transform and quantization step allow for a complete integer computation of lossy JPEG2000 compression. The lossy method of compression utilizes the CDF 9/7 wavelet filter, which transforms integer input pixel values into floating point wavelet coefficients which are then quantized back into integers and finally compressed by the EBCOT tier 1 encoder. Integer computation of JPEG2000 allows a reduction in computational complexity of the wavelet transform as well as ease of implementation in embedded systems for higher computational performance. The results of the integer computation show an equivalent rate/distortion curve to the JasPer JPEG2000 compression engine as well as a 35% reduction in computation time of the wavelet transform and a 56% reduction in computation time of the quantization processing, on average.
Starting Page	495
Ending Page	500
File Size	1837968
Page Count	6
File Format	PDF
ISBN	9781424488582
e-ISBN	9781861353696
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-21
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image coding
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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