Super-resolution omnidirectional camera images using spatio-temporal analysis

Hiroshi Kawasaki, Katsushi Ikeuchi, Masao Sakauchi

研究成果: ジャーナルへの寄稿学術誌査読

8 被引用数 (Scopus)

抄録

Recent years have witnessed the increasing popularity of studies using 360° images captured with omnidirectional cameras. The authors have already created a database of building images using an omnidirectional camera. Omnidirectional cameras can capture 360° images in a single shot, but their optical characteristics are different from those of ordinary cameras, and their use presents several problems. Two problems in particular pertain to camera calibration and the low resolution obtained when capturing a single 360° image. Numerous studies have been conducted in regard to the former, but only a few in regard to the latter due to the small number of instances in which omnidirectional camera images have been used. This has come to be regarded as an especially significant problem, as the number of opportunities for omnidirectional cameras to actually be used has been increasing of late. Resolution-enhancement techniques can be thought of as being broadly divided into hardware methods, in which a high-resolution CCD or the like is employed; and software methods, in which super-resolution or the like is performed using a series of multiple images. In this report, we discuss the use of software-driven methods to super-resolve and otherwise convert low-resolution omnidirectional camera images. Images that have been examined with conventional super-resolution techniques have hitherto been almost exclusively taken with static cameras, whereas we have adopted a novel approach in using images captured with a moving camera. Moreover, our proposed technique is applicable not only to omnidirectional cameras, but to ordinary image capture as well.

本文言語英語
ページ(範囲)47-59
ページ数13
ジャーナルElectronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi)
89
6
DOI
出版ステータス出版済み - 6月 2006
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 電子工学および電気工学

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