JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
63797000.pdf1.14 MB
Other TitleWide baseline stereo with a transparent calibration tool
Author(jpn)片山 保宏
Author(eng)Katayama, Yasuhiro
Author Affiliation(jpn)宇宙航空研究開発機構 総合技術研究本部 宇宙先進技術研究グループ
Author Affiliation(eng)Japan Aerospace Exploration Agency Advanced Space Technology Research Group, Institute of Aerospace Technology
Issue Date2007-03-30
PublisherJapan Aerospace Exploration Agency (JAXA)
Publication date2007-03-30
AbstractEstimating camera parameters is an important topic in the area of stereo vision. We proposed a new transparent, calibration tool with laser beams for on-site stereo calibration. The proposed method can be expected to be applied to visual sensors on a moving platform, i.e. an automobile, airplane or space vehicle. The tool is composed of two layers formed in a clear screen, through which it is possible to see. When a calibration is carried out, laser beams are irradiated to the proposed tools to take images with the laser spots on these screens. The geometrical information provided by the images of the laser spots can be used to calibrate stereo parameters. In this paper, we explain the proposed calibration tool and show experimental results utilizing a real scene. In this paper, we propose a transparent calibration tool consisting of two parallel transparent boards with patterns of dots of a color filter material. The tool can calibrate in a straightforward manner without being re-set or removed. The tool is installed in front of a color camera that acquires images through the tool. Images for calibration and the scene image are acquired simultaneously in different color bands. The proposed method is applied to stereo camera calibration for a distant small object.
DescriptionJAXA Research and Development Report
Keywordsstereoscopic vision; calibration; transparent material; laser beam; imaging technique; image processing; color filter; spatial resolution; 立体視; 校正; 透過性材料; レーザービーム; 撮像技術; 画像処理; カラーフィルタ; 空間分解能
Document TypeTechnical Report
JAXA Category研究開発報告
Report NoJAXA-RR-06-045

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