DocumentCode :
933782
Title :
Three-Dimensional Modeling From Endoscopic Video Using Geometric Constraints Via Feature Positioning
Author :
Wu, Chia-Hsiang ; Sun, Yung-Nien ; Chang, Chien-Chen
Author_Institution :
Nat. Cheng Kung Univ., Tainan
Volume :
54
Issue :
7
fYear :
2007
fDate :
7/1/2007 12:00:00 AM
Firstpage :
1199
Lastpage :
1211
Abstract :
The endoscope is a popular imaging modality used in many preevaluations and surgical treatments, and is also one of the essential tools in minimally invasive surgery. However, regular endoscopes provide only 2-D images. Even though stereoendoscopy systems can display 3-D images, the real anatomical structure of the observed lesion is unavailable and can only be judged by the surgeon´s imagination. In this paper, we present a constraint-based factorization method for reconstructing 3-D structures registered to the patient, from 2-D endoscopic images. The proposed method incorporates the geometric constraints from the tracked surgical instrument into the traditional factorization method based on frame-to-frame feature motion on the endoscopically viewed scene. Experiments with real and synthetic data demonstrate good real-scale 3-D extraction, with greater accuracy than is available from traditional methods. The reconstruction process can also be accomplished in a few seconds, making it suitable for on-line surgical applications to provide surgeons with additional 3-D shape information, critical distance monitoring and warnings.
Keywords :
endoscopes; feature extraction; image reconstruction; medical computing; medical image processing; 2D endoscopic images; 3D image reconstruction; 3D modeling; constraint based factorization method; endoscopic video; feature positioning; frame to frame feature motion; geometric constraints; minimally invasive surgery; Anatomical structure; Displays; Endoscopes; Image reconstruction; Lesions; Minimally invasive surgery; Solid modeling; Surges; Surgical instruments; Tracking; 3-D modeling; Endoscopy; feature tracking; minimally invasive surgery; positioning; Algorithms; Capsule Endoscopy; Computer Simulation; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Imaging, Three-Dimensional; Models, Biological; Surgery, Computer-Assisted; Video Recording;
fLanguage :
English
Journal_Title :
Biomedical Engineering, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9294
Type :
jour
DOI :
10.1109/TBME.2006.889767
Filename :
4237354
Link To Document :
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