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ICASSP
2008
IEEE

Denoising intra-coded moving pictures using motion estimation and pixel shift

14 years 27 days ago
Denoising intra-coded moving pictures using motion estimation and pixel shift
This paper presents a denoising method of intra-coded pictures using motion estimation and pixel shift. Firstly, we show that pixel-aligned mixture of distorted images which are spatially shifted and differently encoded brings reduction of quantization errors. We show that this effect can be formulated as a special case of Wiener-Hopf equation and independence of quantization errors affects the performance. We then consider its application to denoising of intra-coded pictures by using motion estimation and pixel shift. Experiments using actual image sequences verify that motion estimation is effective in moving regions, pixel shift is effective in static regions and favorable PSNR gains are achieved.
Jiro Katto, Junya Suzuki, Shusei Itagaki, Shinichi
Added 30 May 2010
Updated 30 May 2010
Type Conference
Year 2008
Where ICASSP
Authors Jiro Katto, Junya Suzuki, Shusei Itagaki, Shinichi Sakaida, Kazuhisa Iguchi
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