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J-QUESTステレオVカメラシステムの立体計測精度の検証
https://fra.repo.nii.ac.jp/records/2007928
https://fra.repo.nii.ac.jp/records/20079281a1eae1b-e03e-4126-8221-4147c7ff0e73
| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2024-06-19 | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | J-QUESTステレオVカメラシステムの立体計測精度の検証 | |||||||||||||
| 言語 | ja | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | Inspection of the Three-Dimensional Measurement Accuracy of J-QUEST Stereo TV-Camera System | |||||||||||||
| 言語 | en | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | jpn | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | J-QUEST; stereo TV camera; fish size estimate; DLT method | |||||||||||||
| 資源タイプ | ||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||
| 資源タイプ | article | |||||||||||||
| アクセス権 | ||||||||||||||
| アクセス権 | metadata only access | |||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||||||||||
| 著者 |
高橋, 秀行
× 高橋, 秀行
× 澤田, 浩一
× 高尾, 芳三
× 安部, 幸樹
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| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | Three-dimensional measurement accuracy of J-QUEST stereo TV-camera system was evaluated. The camera system was calibrated by direct linear transformation (DLT) method. The DLT method does not need any camera constants such as focal length or base line length, but several control points are needed to be recorded by the stereo camera in advance for calibration, which three-dimensional positions are already known. To obtain the images of control points, optical targets were hung down at the edge of an experimental tank, and their images were recorded by the camera attached below an electric train on the tank. The train was moved to keep the targets in the visual field at ranges of 1.5m to 3.5m from the camera. Errors in three directions seen from the camera were measured and the three-dimensional measurement accuracy was evaluated by a root mean square (RMS) error of the measured positions of optical targets. Validation of correction of image distortion by software and the difference between two layouts of control points were investigated. The best condition was obtained when the image distortion was corrected and the control points were arranged along the edge of calibration space. The RMS error was less than 2.0cm within 3.0m from the stereo camera in this condition. Most of the errors were occurred in the direction which is parallel to the optical axis of the stereo camera. The correction of the image distortion was effective to improve the accuracy while the arrangement of control points was not. Known lengths between two targets (10cm) arranged perpendicular to the optical axis of the stereo camera were also measured and the errors were evaluated. The error was less than 1.0cm within 3.0m from the stereo camera in the best condition. | |||||||||||||
| 言語 | en | |||||||||||||
| bibliographic_information |
ja : 水産工学研究所技報 en : Technical report of National Research Institute of Fisheries Engineering 巻 27, p. 81-92, ページ数 12, 発行日 2005-03 |
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| 出版者 | ||||||||||||||
| 出版者 | 水産工学研究所 | |||||||||||||
| 言語 | ja | |||||||||||||
| 出版者 | ||||||||||||||
| 出版者 | National Research Institute of Fisheries Engineering | |||||||||||||
| 言語 | en | |||||||||||||
| item_10002_source_id_9 | ||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||
| 収録物識別子 | 1341-8750 | |||||||||||||
| item_10002_source_id_11 | ||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||
| 収録物識別子 | AN1056052X | |||||||||||||
| 情報源 | ||||||||||||||
| 識別子タイプ | Local | |||||||||||||
| 関連識別子 | nrife_g_27_81 | |||||||||||||
| 関連サイト | ||||||||||||||
| 識別子タイプ | URI | |||||||||||||
| 関連識別子 | https://agriknowledge.affrc.go.jp/RN/2010711865 | |||||||||||||
| 言語 | ja | |||||||||||||
| 関連名称 | 日本農学文献記事索引(agriknowledge) | |||||||||||||
| 出版タイプ | ||||||||||||||
| 出版タイプ | VoR | |||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||
