A modified soft-shape-context ICP registration system of 3-D point data

Jiann Der Lee*, Chung Hsien Huang, Li Chang Liu, Shih Sen Hsieh, Shuen Ping Wang, Shin Tseng Lee

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

A facial point data registration system based on ICP is presented. The reference facial point data are extracted from patient's pre-stored CT images, and the floating facial point data are captured from the patient directly by using a touch or non-touch capture device. A modified soft-shape-context ICP, which includes an adaptive dual AK-D tree for searching the closest point and a modified objective function, is embedded in this system. The adaptive dual AK-D tree searches the closest-point pair and discards insignificant control coupling points by an adaptive distance threshold on the distance between the two returned closest points which are searched by using AK-D tree search algorithm in two different partition orders. In the objective function of ICP, we utilize the modified soft-shape-context information which is one kind of projection information to enhance the robustness of the objective function. Relying on registering the floating data to the reference data, the system provides the geometric relationship for a medical assistant system and a pre-operative training. Experiment results of using touch and non-touch capture devices to capture floating point data are performed to show the superiority of the proposed system.

Original languageEnglish
Title of host publicationNeural Information Processing - 14th International Conference, ICONIP 2007, Revised Selected Papers
Pages723-732
Number of pages10
EditionPART 1
DOIs
StatePublished - 2008
Event14th International Conference on Neural Information Processing, ICONIP 2007 - Kitakyushu, Japan
Duration: 13 11 200716 11 2007

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
NumberPART 1
Volume4984 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference14th International Conference on Neural Information Processing, ICONIP 2007
Country/TerritoryJapan
CityKitakyushu
Period13/11/0716/11/07

Keywords

  • ICP
  • KD-tree
  • Registration
  • Shape context

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