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

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8 Author(s)
Pierre Greisen ; Swiss Fed. Inst. of Technol. Zurich, Zurich, Switzerland ; Michael Schaffner ; Simon Heinzle ; Marian Runo
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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. 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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IEEE Transactions on Circuits and Systems for Video Technology  (Volume:22 ,  Issue: 11 )