Analysis and VLSI Implementation of EWA Rendering for Real-Time HD Video Applications

 

Nonlinear image warping or image resampling is a necessary step in many current and upcoming video applications, such as video retargeting, stereoscopic 3-D mapping, and multiview synthesis.

May 30, 2012
IEEE Transactions on Circuits and Systems for Video Technology (TCSVT)

 

Authors

Pierre Greisen (Disney Research/ETH Joint PhD)

Michael Schaffner (Disney Research/ETH Joint PhD)

Simon Heinzle (Disney Research)

Marian Runo (ETH Zurich)

Aljoscha Smolic (Disney Research)

Andreas Burg (EPF Lausanne)

Hubert Kaeslin (ETH Zurich)

Markus Gross (Disney Research/ETH Zurich)

Analysis and VLSI Implementation of EWA Rendering for Real-Time HD Video Applications

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Abstract

The challenges for real-time resampling include not only image quality but also available energy and computational power of the employed device. In this paper, we employ an elliptical-weighted average (EWA) rendering approach to 2-D image resampling. We extend the classical EWA framework for increased visual quality and provide a very large scale integration architecture for efficient view rendering. The resulting architecture is able to render high-quality video sequences in real time targeted for low-power applications in end-user display devices.

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