Group average difference : A termination criterion for active contour
This paper presents a termination criterion for active contour that does not involve alteration of the energy functional. The criterion is based on the area difference of the contour during evolution. In this criterion, the evolution of the contour terminates when the area difference fluctuates arou...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/107361 http://hdl.handle.net/10220/18021 |
| _version_ | 1826121896166424576 |
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| author | Chuah, Tong Kuan Lim, Jun Hong Poh, Chueh Loo |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Chuah, Tong Kuan Lim, Jun Hong Poh, Chueh Loo |
| author_sort | Chuah, Tong Kuan |
| collection | NTU |
| description | This paper presents a termination criterion for active contour that does not involve alteration of the energy functional. The criterion is based on the area difference of the contour during evolution. In this criterion, the evolution of the contour terminates when the area difference fluctuates around a constant. The termination criterion is tested using parametric gradient vector flow active contour with contour resampling and normal force selection. The usefulness of the criterion is shown through its trend, speed, accuracy, shape insensitivity, and insensitivity to contour resampling. The metric used in the proposed criterion demonstrated a steadily decreasing trend. For automatic implementation in which different shapes need to be segmented, the proposed criterion demonstrated almost 50% and 60% total time reduction while achieving similar accuracy as compared with the pixel movement-based method in the segmentation of synthetic and real medical images, respectively. Our results also show that the proposed termination criterion is insensitive to shape variation and contour resampling. The criterion also possesses potential to be used for other kinds of snakes. |
| first_indexed | 2024-10-01T05:39:39Z |
| format | Journal Article |
| id | ntu-10356/107361 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:39:39Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/1073612022-02-16T16:28:11Z Group average difference : A termination criterion for active contour Chuah, Tong Kuan Lim, Jun Hong Poh, Chueh Loo School of Chemical and Biomedical Engineering DRNTU::Engineering::Chemical engineering This paper presents a termination criterion for active contour that does not involve alteration of the energy functional. The criterion is based on the area difference of the contour during evolution. In this criterion, the evolution of the contour terminates when the area difference fluctuates around a constant. The termination criterion is tested using parametric gradient vector flow active contour with contour resampling and normal force selection. The usefulness of the criterion is shown through its trend, speed, accuracy, shape insensitivity, and insensitivity to contour resampling. The metric used in the proposed criterion demonstrated a steadily decreasing trend. For automatic implementation in which different shapes need to be segmented, the proposed criterion demonstrated almost 50% and 60% total time reduction while achieving similar accuracy as compared with the pixel movement-based method in the segmentation of synthetic and real medical images, respectively. Our results also show that the proposed termination criterion is insensitive to shape variation and contour resampling. The criterion also possesses potential to be used for other kinds of snakes. 2013-12-04T04:34:44Z 2019-12-06T22:29:19Z 2013-12-04T04:34:44Z 2019-12-06T22:29:19Z 2012 2012 Journal Article Chuah, T. K., Lim, J. H., & Poh, C. L. (2012). Group average difference : A termination criterion for active contour. Journal of digital imaging, 25(2), 279-293. https://hdl.handle.net/10356/107361 http://hdl.handle.net/10220/18021 10.1007/s10278-011-9405-y 21773868 en Journal of digital imaging |
| spellingShingle | DRNTU::Engineering::Chemical engineering Chuah, Tong Kuan Lim, Jun Hong Poh, Chueh Loo Group average difference : A termination criterion for active contour |
| title | Group average difference : A termination criterion for active contour |
| title_full | Group average difference : A termination criterion for active contour |
| title_fullStr | Group average difference : A termination criterion for active contour |
| title_full_unstemmed | Group average difference : A termination criterion for active contour |
| title_short | Group average difference : A termination criterion for active contour |
| title_sort | group average difference a termination criterion for active contour |
| topic | DRNTU::Engineering::Chemical engineering |
| url | https://hdl.handle.net/10356/107361 http://hdl.handle.net/10220/18021 |
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