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Automated extraction of pelvic features in portal and simulation images

Publication ,  Journal Article
Yin, FF; Nie, K; Chen, L; Chen, CW
Published in: Proceedings of SPIE - The International Society for Optical Engineering
December 1, 1996

A new approach, a pyramid template matching as guided by a snake, is developed for the extraction of pelvic features in both portal and simulation images. Initially, the treatment field edge was extracted using a Canny edge detector. A template modeled using a polynomial function for the typical pelvic structures was used as the initial approximation for the anterioposterior (AP) pelvic brim. Several energies were defined to search the actual bony structures as guided by the snake in a larger range. In this study, a double-snake model coupled with a spring was developed to define the external constraint force. The image force was calculated from various processed images using different edge detection algorithms. The criterion used for search termination was to find the locations where the overall energy was at its minimum. The result of the initial search was fit using a polynomial function as the second approximation for the pelvic bony structure. Snake searching technique was repeated in a smaller range around the initial identified features for fine search of pelvic bony structure. This technique has shown to be very promising for extracting pelvic features.

Duke Scholars

Published In

Proceedings of SPIE - The International Society for Optical Engineering

DOI

ISSN

0277-786X

Publication Date

December 1, 1996

Volume

2710

Start / End Page

1020 / 1023

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering
 

Citation

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Yin, F. F., Nie, K., Chen, L., & Chen, C. W. (1996). Automated extraction of pelvic features in portal and simulation images. Proceedings of SPIE - The International Society for Optical Engineering, 2710, 1020–1023. https://doi.org/10.1117/12.237910
Yin, F. F., K. Nie, L. Chen, and C. W. Chen. “Automated extraction of pelvic features in portal and simulation images.” Proceedings of SPIE - The International Society for Optical Engineering 2710 (December 1, 1996): 1020–23. https://doi.org/10.1117/12.237910.
Yin FF, Nie K, Chen L, Chen CW. Automated extraction of pelvic features in portal and simulation images. Proceedings of SPIE - The International Society for Optical Engineering. 1996 Dec 1;2710:1020–3.
Yin, F. F., et al. “Automated extraction of pelvic features in portal and simulation images.” Proceedings of SPIE - The International Society for Optical Engineering, vol. 2710, Dec. 1996, pp. 1020–23. Scopus, doi:10.1117/12.237910.
Yin FF, Nie K, Chen L, Chen CW. Automated extraction of pelvic features in portal and simulation images. Proceedings of SPIE - The International Society for Optical Engineering. 1996 Dec 1;2710:1020–1023.

Published In

Proceedings of SPIE - The International Society for Optical Engineering

DOI

ISSN

0277-786X

Publication Date

December 1, 1996

Volume

2710

Start / End Page

1020 / 1023

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering