A Dual Active Contour for Head Boundary Extraction
A Dual Active Contour for Head Boundary Extraction
This paper presents a new approach to improve robustness of face contour extraction by extending active contour techniques. The main problems with the original snake technique include sensitivity to initialisation and obstruction of evolution by insignificant localised features. In deployment, these factors can force selection of an initial contour which is close to the target. By combining an expanding contour with a shrinking one, in a dual active contour, we can reduce sensitivity to initialisation, effectively by constraining the space in which the target contour is expected to lie.
6/1--6/4
Gunn, S.R.
306af9b3-a7fa-4381-baf9-5d6a6ec89868
Nixon, M.S.
2b5b9804-5a81-462a-82e6-92ee5fa74e12
April 1994
Gunn, S.R.
306af9b3-a7fa-4381-baf9-5d6a6ec89868
Nixon, M.S.
2b5b9804-5a81-462a-82e6-92ee5fa74e12
Gunn, S.R. and Nixon, M.S.
(1994)
A Dual Active Contour for Head Boundary Extraction.
Colloq. on Image Processing for Biometric Measurement.
.
Record type:
Conference or Workshop Item
(Other)
Abstract
This paper presents a new approach to improve robustness of face contour extraction by extending active contour techniques. The main problems with the original snake technique include sensitivity to initialisation and obstruction of evolution by insignificant localised features. In deployment, these factors can force selection of an initial contour which is close to the target. By combining an expanding contour with a shrinking one, in a dual active contour, we can reduce sensitivity to initialisation, effectively by constraining the space in which the target contour is expected to lie.
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Published date: April 1994
Additional Information:
Organisation: IEE Address: London, UK
Venue - Dates:
Colloq. on Image Processing for Biometric Measurement, 1994-03-31
Organisations:
Electronic & Software Systems, Southampton Wireless Group
Identifiers
Local EPrints ID: 250341
URI: http://eprints.soton.ac.uk/id/eprint/250341
PURE UUID: 17c3ea75-a9d4-44f6-b34f-6d7cef03dec9
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Date deposited: 29 Oct 2001
Last modified: 11 Dec 2021 02:38
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Contributors
Author:
S.R. Gunn
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