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Proceedings Paper

Modern transform design for advanced image/video coding applications
Author(s): Trac D. Tran; Pankaj N. Topiwala
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Paper Abstract

This paper offers an overall review of recent advances in the design of modern transforms for image and video coding applications. Transforms have been an integral part of signal coding applications from the beginning, but emphasis had been on true floating-point transforms for most of that history. Recently, with the proliferation of low-power handheld multimedia devices, a new vision of integer-only transforms that provide high performance yet very low complexity has quickly gained ascendency. We explore two key design approaches to creating integer transforms, and focus on a systematic, universal method based on decomposition into lifting steps, and use of (dyadic) rational coefficients. This method provides a wealth of solutions, many of which are already in use in leading media codecs today, such as H.264, HD Photo/JPEG XR, and scalable audio. We give early indications in this paper, and more fully elsewhere.

Paper Details

Date Published: 13 September 2008
PDF: 12 pages
Proc. SPIE 7073, Applications of Digital Image Processing XXXI, 70730H (13 September 2008); doi: 10.1117/12.798304
Show Author Affiliations
Trac D. Tran, FastVDO, Inc. (United States)
Johns Hopkins Univ. (United States)
Pankaj N. Topiwala, FastVDO, Inc. (United States)

Published in SPIE Proceedings Vol. 7073:
Applications of Digital Image Processing XXXI
Andrew G. Tescher, Editor(s)

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