Generation of a Zoomed Stereo Video Using Two Synchronized Videos with Different Magnifications

Yusuke HAYASHI  Norihiko KAWAI  Tomokazu SATO  Miyuki OKUMOTO  Naokazu YOKOYA  

IEICE TRANSACTIONS on Information and Systems   Vol.E98-D   No.9   pp.1691-1701
Publication Date: 2015/09/01
Online ISSN: 1745-1361
DOI: 10.1587/transinf.2015EDP7150
Type of Manuscript: PAPER
Category: Image Processing and Video Processing
stereo video,  super-resolution,  energy minimization,  

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This paper proposes a novel approach to generate stereo video in which the zoom magnification is not constant. Although this has been achieved mechanically in a conventional way, it is necessary for this approach to develop a mechanically complex system for each stereo camera system. Instead of a mechanical solution, we employ an approach from the software side: by using a pair of zoomed and non-zoomed video, a part of the non-zoomed video image is cut out and super-resolved for generating stereo video without a special hardware. To achieve this, (1) the zoom magnification parameter is automatically determined by using distributions of intensities, and (2) the cutout image is super-resolved by using optically zoomed images as exemplars. The effectiveness of the proposed method is quantitatively and qualitatively validated through experiments.