Eye and Lip Enhancement for Low-rate Videophony
Eye and Lip Enhancement for Low-rate Videophony
A generic parametric coding enhancement for employment in very low-rate videophone systems is proposed in order to improve the subjectively important eye and lip representation. The four-step Algorithm 1 identifies the position of the eyes, nostrils, lips and nose using pre-processing and pattern-matching and after luminance adjustment and smoothing it overlays the best-matching entries from a trained codebook, if deemed beneficial in image quality terms. The benefits of the technique are demonstrated using the example of an 11.36 kbps fixed rate quad-tree codec.
1049-1053
Streit, J
00c8766c-91a2-4ed0-a543-0549499907ec
Hanzo, L
66e7266f-3066-4fc0-8391-e000acce71a1
Bradshaw, B
e9b50343-6b82-4b7e-af99-08f64cf284cf
October 1996
Streit, J
00c8766c-91a2-4ed0-a543-0549499907ec
Hanzo, L
66e7266f-3066-4fc0-8391-e000acce71a1
Bradshaw, B
e9b50343-6b82-4b7e-af99-08f64cf284cf
Streit, J, Hanzo, L and Bradshaw, B
(1996)
Eye and Lip Enhancement for Low-rate Videophony.
of PIMRC'96, Taipei, Taiwan.
15 - 18 Oct 1996.
.
Record type:
Conference or Workshop Item
(Other)
Abstract
A generic parametric coding enhancement for employment in very low-rate videophone systems is proposed in order to improve the subjectively important eye and lip representation. The four-step Algorithm 1 identifies the position of the eyes, nostrils, lips and nose using pre-processing and pattern-matching and after luminance adjustment and smoothing it overlays the best-matching entries from a trained codebook, if deemed beneficial in image quality terms. The benefits of the technique are demonstrated using the example of an 11.36 kbps fixed rate quad-tree codec.
Text
js-lh-bb-pimrc-1996.pdf
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More information
Published date: October 1996
Additional Information:
Event Dates: 15-18 October 1996 Organisation: PIMRC'96 Address: Taipei, Taiwan
Venue - Dates:
of PIMRC'96, Taipei, Taiwan, 1996-10-15 - 1996-10-18
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 257104
URI: http://eprints.soton.ac.uk/id/eprint/257104
PURE UUID: 20ca8c5c-3427-4a76-80df-5b0aa99dd909
Catalogue record
Date deposited: 12 Dec 2002
Last modified: 18 Mar 2024 02:33
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Contributors
Author:
J Streit
Author:
L Hanzo
Author:
B Bradshaw
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