書誌事項
- タイトル別名
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- 3-D Inspection System for Small Defects on Arbitrarily Curved Surfaces.
- ニンイ キョクメン ノ キズ ケンサ ノ タメ ノ ガゾウ センシング システ
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This paper describes a three-dimensional (3-D) inspection system for small 3-D and reflectance defects of an arbitrary surface. We fix a TV camera in front of the object, and along the viewing axis we move a random dot projector at a constant speed. After taking the first image sequence, we shift the object by a slight known amount, and take the second image sequence in the same way. Applying the spatio-temporal gradient method, we extract gradient patterns of surface depth and surface reflectance distributions. We applied this method to visual inspection and classification of fine surface defects such as cracks, flaws, stain, and rust. We show this system could detect up to 5μm flaws and 1% reflectance change from a 50cm distant measuring apparatus.
収録刊行物
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- 電気学会論文誌E(センサ・マイクロマシン部門誌)
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電気学会論文誌E(センサ・マイクロマシン部門誌) 117 (4), 215-221, 1997
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1390001204460146944
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- NII論文ID
- 10005111440
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- NII書誌ID
- AN1052634X
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- ISSN
- 13475525
- 13418939
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- NDL書誌ID
- 4172332
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可