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FISCHOMステレオカメラの立体計測精度の評価
https://fra.repo.nii.ac.jp/records/2008121
https://fra.repo.nii.ac.jp/records/200812151344156-a6dc-4eb9-839c-a13701c4f04b
| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2024-06-19 | |||||||||||
| タイトル | ||||||||||||
| タイトル | FISCHOMステレオカメラの立体計測精度の評価 | |||||||||||
| 言語 | ja | |||||||||||
| タイトル | ||||||||||||
| タイトル | Evaluation of the Three-Dimensional Measurement Accuracy of FISCHOM Stereo Camera System | |||||||||||
| 言語 | en | |||||||||||
| 言語 | ||||||||||||
| 言語 | jpn | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | artificial fish reef; stereo camera; three-dimensional measurement | |||||||||||
| 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
× 松田, 秋彦
× 赤松, 友成
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | FISCHOM (Fish school monitoring system) is an effective and inexpensive tool for quantitative survey of artificial fish reefs, consisted of an echo sounder, a catadioptric stereo camera system, and a programmable timer to control the sensors. In this paper, we have evaluated the three-dimensional measurement accuracy of the catadioptric stereo camera system in FISCHOM. The camera system was calibrated by the direct linear transformation (DLT) method. The DLT method does not need any camera constants, but the stereo camera needs to photograph several control points (which the three-dimensional positions are already known) in advance for calibration. To obtain the images of control points, FISCHOM was fixed at the edge of an experimental tank, and optical targets were hung down on below an electric carriage on the tank and their images were recorded by FISCHOM. The carriage was moved to keep the targets in the visual field at ranges of 200cm to 500cm from FISCHOM. 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. Average RMS error was about 3cm within 500cm from FISCHOM. Known lengths between two neighboring targets arranged perpendicular to the optical axis of the stereo camera were also measured and the errors were evaluated. The average error was about 2.5% within 500cm from FISCHOM. Results are acceptable to gain the quantitative information of structure of reef fish assemblages. | |||||||||||
| 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 28, p. 85-91, ページ数 7, 発行日 2006-03 |
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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_28_85 | |||||||||||
| 関連サイト | ||||||||||||
| 識別子タイプ | URI | |||||||||||
| 関連識別子 | https://agriknowledge.affrc.go.jp/RN/2010730370 | |||||||||||
| 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 | |||||||||||
