치과 인상 모델의 3D 스캐닝을 위한 최적 방향 결정 알고리즘
An Algorithm for the Detection of 3D Scanning Direction in Dental Impression Model
- 주제(키워드) 3D Scanning , Dental Impression , Detection , Global Interference , Scanning Direction , Virtual Hole
- 발행기관 아주대학교
- 지도교수 박상철
- 발행년도 2015
- 학위수여년월 2015. 8
- 학위명 석사
- 학과 및 전공 일반대학원 산업공학과
- 실제URI http://www.dcollection.net/handler/ajou/000000020776
- 본문언어 영어
- 저작권 아주대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
This research proposes a algorithm for the detection of 3D scanning direction in dental impression model. As 3D scanning industry grew in the latest, 3D scanner related medical technology is introduced to the field of Dentistry. To make a dental prosthesis, dental technicians have used dental impression models that are made of casting materials. But dental impression models are easily transformed and take up much space. 3D scanning operations are required in order to convert physical model to CAD model. Almost dental technicians have no CAD related expert knowledge. Thus when the physical model is scanned, intuitively they have to determine the scanning direction. If the dental impression model has simple shape, intuitional decision of user can be more efficient than the proposed algorithm. But dental impression model has complex shape and global interference, therefore some area that can't be scanned can exist. To distinguish between the area that can be scanned and the area that can't be scanned, users have to expend time and effort on finding the optimal scanning direction. The proposed algorithm detects virtual holes(the area that required scanning) using GPU parallel computing and contact detection. And we pick one direction among 250 directions considering the global interference. We are not consider marked directions, and all procedure work every scanning time.
more목차
I Introduction 1
1. Research Background 2
2. Categorization and Explanation of 3D Scanning Method 5
3. Content of Research and Perform Method 12
4. Analyzing Existing Research and Expectation Effectiveness from this Research 17
5. Research Purpose and Composition 19
II Virtual hole exploratory method 20
1. Existing hole exploratory method 21
2. Existing Contact Surface Examination 23
3. Contact Surface Examination by using GPU 25
4. Virtual hole Exploratory 26
III Deciding on the optimal scanning direction 32
1. Scanner analyze according to the direction 33
2. Global interference 37
3. Decision of optimal direction 39
IV Conclusion and hereafter research 42
Bibliography 44
Abstract 46
