Title:
IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2014/083857
Kind Code:
A1
Abstract:
An objective of the present invention is to reduce tone degradation of a region wherein tone is to be preserved with respect to restoration of a super-resolution image. This image processing device comprises: a weighting computation means for determining a region wherein a feature quantity of an inputted image is stored on the basis of a slope of a feature quantity of a pixel of the inputted image and the direction of the slope, and computing a weighting for reducing a regularization constraint, which is a constraint based on regularization of an image process in the region wherein the feature quantity is stored; a regularization computation means for computing, using the weighting, a regularization constraint of a high-resolution image which is restored on the basis of the inputted image; a reconstruction constraint computation means for computing a reconstruction constraint of the high-resolution image, which is a constraint based on the reconstruction; and an image restoration means for restoring the high-resolution image from the inputted image, on the basis of the regularization constraint and the reconstruction constraint.
Inventors:
SHIBATA TAKASHI (JP)
IKETANI AKIHIKO (JP)
SENDA SHUJI (JP)
IKETANI AKIHIKO (JP)
SENDA SHUJI (JP)
Application Number:
PCT/JP2013/007001
Publication Date:
June 05, 2014
Filing Date:
November 28, 2013
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G06T3/00; H04N1/387
Domestic Patent References:
| WO2004068862A1 | 2004-08-12 |
Foreign References:
| JP2005334402A | 2005-12-08 | |||
| JP2008167027A | 2008-07-17 | |||
| JP2011180798A | 2011-09-15 |
Other References:
MICHAEL K. NG; HUANFENG SHEN; EDMUND Y. LAM; LIANGPEI ZHANG: "A Total Variation Regularization Based Super-Resolution Reconstruction Algorithm for Digital Video", EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING, vol. 2007, pages 16
FARSIU, S.; ROBINSON, M.D.; ELAD, M.; MILANFAR, P.: "Fast and robust multiframe super resolution", IEEE TRANSACTIONS ON IMAGE PROCESSING, vol. 13, no. 10, 2004, pages 1327 - 1344
FARSIU, S.; ROBINSON, M.D.; ELAD, M.; MILANFAR, P.: "Fast and robust multiframe super resolution", IEEE TRANSACTIONS ON IMAGE PROCESSING, vol. 13, no. 10, 2004, pages 1327 - 1344
Attorney, Agent or Firm:
SHIMOSAKA, NAOKI (JP)
Naoki Shimosaka (JP)
Naoki Shimosaka (JP)
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