Force Feedback to Assist Active Contour Modelling for Tracheal Stenosis Segmentation
Manual segmentation of structures for diagnosis and treatment of various diseases is a very time-consuming procedure. Therefore, some level of automation during the segmentation is desired, as it often significantly reduces the segmentation time. A typical solution is to allow manual interaction to...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
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| Series: | Advances in Human-Computer Interaction |
| Online Access: | http://dx.doi.org/10.1155/2012/632498 |
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| Summary: | Manual segmentation of structures for diagnosis and treatment
of various diseases is a very time-consuming procedure. Therefore,
some level of automation during the segmentation is desired, as it often
significantly reduces the segmentation time. A typical solution is to allow
manual interaction to steer the segmentation process, which is known as
semiautomatic segmentation. In 2D, such interaction is usually achieved
with click-and-drag operations, but in 3D a more sophisticated interface
is called for. In this paper, we propose a semi-automatic Active Contour
Modelling for the delineation of medical structures in 3D, tomographic
images. Interaction is implemented with the employment of a 3D haptic
device, which is used to steer the contour deformation towards the correct
boundaries. In this way, valuable haptic feedback is provided about
the 3D surface and its deformation. Experiments on simulated and real
tracheal CT data showed that the proposed technique is an intuitive and
effective segmentation mechanism. |
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| ISSN: | 1687-5893 1687-5907 |