IEEE Consumer Electronics Magazine - January/February 2022 - 17

Feature Article: Smart Omnidirectional
Video Capturing
Generation of Panoramic
Images by Two
Hemispherical Cameras
Independent of
Installation Location
Shota Ono and Chinthaka Premachandra
Shibaura Institute of Technology
Abstract-Single-shot capture of panoramic images has become possible in recent years,
expanding applications for omnidirectional cameras. Retrofitting omnidirectional
cameras onto existing objects can be problematic, however, because placing lenses on
either side can cause the mounting structure to be included in captured images. To
address this issue, we propose using two hemispherical cameras equipped with 185
field-of-view fisheye lenses and combining the images from each while compensating for
differences in separation and height to produce a panoramic image like that from an
omnidirectional camera. In other words, we investigate acquisition of omnidirectional
panoramic images from two hemispherical cameras installed at some distance from each
other. In this article, we propose a method for generating spherical images by stitching
together images from two cameras. Specifically, we prepare a circular object, include it in
images from two separated hemispherical cameras, detect the circular object in each
image, and match the two detected circles. We also describe multiple experiments
confirming the utility and effectiveness of the proposed method. This work is expected to
contribute to expanding the range of applications for omnidirectional imaging.
Digital Object Identifier 10.1109/MCE.2020.3031090
Date ofpublication 14 October 2020; date ofcurrent version
6 December 2021.
January/February 2022
Published by the IEEE Consumer Technology Society
2162-2248 ß 2020 IEEE
17

IEEE Consumer Electronics Magazine - January/February 2022

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