Paper Title:
Study on Integrated Setup System with Computer Vision for Breast Cancer Radiotherapy
  Abstract

Purpose: To discuss a setup verification method based on computer stereo vision for the repeat setup in breast cancer fractional irradiation. Methods and Materials: A photogrammetric system is composed of two cameras and one computer. First, multiple characteristic markers’ coordinates are gotten by the two cameras, then the three-dimensional coordinates of the markers are calculated according to the basic principle of binocular calculated, which can construct breast and chest surface stereo features shape, thus the setup error can judge and correct before radiation therapy. At the tracking process, we use SITF (Scale Invariant Feature Transform) as the registration algorithm, which has strong robustness and accurate matching performance, meanwhile, dynamic choice matching image and local searching strategy are used in the process of calculation and mergence in order to make the target image matching more precisely. Results: Experimental results show that in breast cancer fractional irradiation, the system can accurately display setup error and can achieve real-time calculation. Conclusion: The proposed method can reduce setup error in breast cancer fractional irradiation, and has good stability and high precision.

  Info
Periodical
Advanced Materials Research (Volumes 328-330)
Chapter
Chapter 3: Mechatronics and Automation
Edited by
Liangchi Zhang, Chunliang Zhang and Zichen Chen
Pages
2333-2336
DOI
10.4028/www.scientific.net/AMR.328-330.2333
Citation
L. Tong, C. H. Zhu, Z. Q. He, "Study on Integrated Setup System with Computer Vision for Breast Cancer Radiotherapy", Advanced Materials Research, Vols. 328-330, pp. 2333-2336, 2011
Online since
September 2011
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Price
$32.00
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