Proceedings of the Korean Society of Broadcast Engineers Conference (한국방송∙미디어공학회:학술대회논문집)
- 2009.01a
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- Pages.601-605
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- 2009
IMPLEMENTATION OFWHOLE SHAPE MEASUREMENT SYSTEM USING A CYLINDRICAL MIRROR
- Uranishi, Yuki (Graduate School of Information Science, Nara Institute of Science and Technology) ;
- Manabe, Yoshitsugu (Graduate School of Information Science, Nara Institute of Science and Technology) ;
- Sasaki, Hiroshi (Information Science and Technology Center, Kobe University) ;
- Chihara, Kunihiro (Graduate School of Information Science, Nara Institute of Science and Technology)
- Published : 2009.01.12
Abstract
We have proposed a measurement system for measuring a whole shape of an object easily. The proposed system consists of a camera and a cylinder whose inside is coated by a mirror layer. A target object is placed inside the cylinder and an image is captured by the camera from right above. The captured image includes sets of points that are observed from multiple viewpoints: one is observed directly, and others are observed via the mirror. Therefore, the whole shape of the object can be measured using stereo vision in a single shot. This paper shows that a prototype of the proposed system was implemented and an actual object was measured using the prototype. A method based on a pattern matching which uses a value of SSD (Sum of Squared Difference), and a method based on DP (Dynamic Programming) are employed to identify a set of corresponding points in warped captured images.
Keywords
- whole shape measurement;
- catadioptric stereo;
- cylindrical mirror;
- fish-eye lens;
- pattern matching;
- dynamic programming