Regular paper

[OPTICAL REVIEW Vol. 15, No. 1 (2008) 26-30]
© 2008 The Optical Society of Japan

Image Super-resolution Based on Local Self-similarity

Noriaki SUETAKE^*, Morihiko SAKANO¹, and Eiji UCHINO¹

Academic Domain of Natural Science, Graduate School of Science and Engineering, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8512, Japan
¹Division of Natural Science and Symbiosis, Graduate School of Science and Engineering, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8512, Japan

(Received August 23, 2007; Accepted November 17, 2007)

A new image super-resolution method based on a codebook mapping is proposed. The codebook mapping represents the internal relationship between low- and high-frequency image components, and is used for the estimation of high-frequency image components lost in the sampling process. In the proposed method, codebooks are first generated by the low- and high-frequency image components of the original image itself that is to be processed. Then, a resultant super-resolution image, that is, an enlarged image, is obtained by combining the estimated high-frequency image components with the low-frequency ones obtained by a typical interpolation-based method. The effectiveness of the proposed method is verified by comparing it against some conventional methods.

Key words: super-resolution, image enlargement, codebook, self-similarlity

OPTICAL REVIEW HomePage

© 1994-2011 The Optical Society of Japan (An Affiliate of the Japan Society of Applied Physics)
Produced, Developed, and Maintained by The Optical Society of Japan (An Affiliate of the Japan Society of Applied Physics)
Printed in Japan by Komiyama Printing Co., Ltd.

mail to Editorial Office, OPTICAL REVIEW