Earticle

초록

영어

In computer assisted surgery, one of the most important problems is to align the preoperative model with intraoperative data. The Iterative Closest Point (ICP) algorithm is undoubtedly the most popular algorithm for solving this kind of problem, which needs a good initialization. In this paper, an ICP algorithm based on the coordinate system direction fit is present to improve ICP algorithm’s shortcoming with easily falling into local optimum for intraoperative registration. Firstly, ICP registration algorithm and its problems are introduced. Secondly, based on the consistency between CT scans pose and surgical pose, a three-plane coordinate system on patients is established to reduce the rotation dislocation between CT image space and patient space. Then, an ICP algorithm experiment and its precision analysis are conducted. Finally, the error analysis is also given. The experimental results show that one of the benefits of the ICP algorithm based on the coordinate system direction fit is that it is easily convergent on the registration by a three-plane coordinate system on patients, which increases the registration accuracy and reduces the computational processing time .

목차

Abstract
 1. Introduction
 2. Iterative Closest Point Algorithm
 3. Direction Fit Coordinate System Set
 4. ICP Algorithm Registration Test
  4.1. ICP Registration Example
  4.2. Accuracy Verification for ICP Registration
 5. Conclusions
 References

키워드

저자

• Heqiang Tian [ College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao266590, China ]
• Peng Yang [ College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao266590, China ]
• Chunjian Su [ College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao266590, China ]
• Zhiqiang Dong [ West coast (Development) Group Co., Ltd of Qingdao, Qingdao 266590, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Security and Its Applications

• 간기

  격월간

• pISSN

  1738-9976

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605