Modern transform design for advanced image/video coding applications

Trac D. Tran; Pankaj N. Topiwala

doi:10.1117/12.798304

13 September 2008 Modern transform design for advanced image/video coding applications

Trac D. Tran, Pankaj N. Topiwala

Proceedings Volume 7073, Applications of Digital Image Processing XXXI; 70730H (2008) https://doi.org/10.1117/12.798304
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

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.

Citation Download Citation

Trac D. Tran and Pankaj N. Topiwala "Modern transform design for advanced image/video coding applications", Proc. SPIE 7073, Applications of Digital Image Processing XXXI, 70730H (13 September 2008); https://doi.org/10.1117/12.798304

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