DEGRADATION RESTORATION SYSTEM, DEGRADATION RESTORATION METHOD AND PROGRAM

WIPO Patent Application WO/2013/011797

A1

In the present invention, the direction in which variation in pixel value between pixels within an input image and surrounding pixels of the same is greatest, and the magnitude of the variation for the pixel values, are calculated for each pixel in order to calculate a directional unit vector indicating the direction of greatest variation for each pixel and a variation vector representing the magnitude of greatest variation for each of the pixels. A regularization strength for each pixel, such that the regularization strength becomes smaller as the magnitude of variation for each of the pixels becomes larger in the direction indicated by the directional unit vector, is calculated using the directional unit vector, the variation vector, and a regularization strength calculation formula. An optimization function is determined on the basis of the input image and the regularization strength for each pixel of the same in order to generate a restored image having values for each of the pixels such that the value of the determined optimization function is minimized.

SHIBATA TAKASHI (JP)
IKETANI AKIHIKO (JP)
SENDA SHUJI (JP)

PCT/JP2012/065921

January 24, 2013

June 21, 2012

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NEC CORP (JP)
SHIBATA TAKASHI (JP)
IKETANI AKIHIKO (JP)
SENDA SHUJI (JP)

G06T5/00; H04N5/232

JP2010068084A	2010-03-25
JP2011015228A	2011-01-20

TANAI Sumio et al. (JP)
Sumio Tanai (JP)

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