Title:
EVALUATION OF EDGE DIRECTION INFORMATION
Document Type and Number:
WIPO Patent Application WO2002021427
Kind Code:
A3
Abstract:
The invention relates to identification means for localising a physically delimited part of the body, which do not involve a long computing time, but nevertheless provide a sufficiently precise identification. The invention also relates to a method for detecting physically delimited parts of the body (face, hand, leg) of a subject depicted in an image, whereby on said image (5) a part of the body (2) is depicted against a background (3). The edge lines (5d, 5e) of the image are only evaluated according to the line direction (5a', 4a', 4b', 5c'), in order to determine by comparison with a model (30), whether the part of the body depicted corresponds to a body-part type predetermined by the model. Line directions (5d', 5e') inside the depicted part of the body and edge line directions (5a) of the depicted and physically delimited part of the body are used for said comparison, which allows their position to be localised and the corresponding positional information to be stored.
Inventors:
FROEBA BERNHARD (DE)
KUEBLBECK CHRISTIAN (DE)
KUEBLBECK CHRISTIAN (DE)
Application Number:
PCT/DE2001/003375
Publication Date:
August 08, 2002
Filing Date:
September 03, 2001
Export Citation:
Assignee:
FRAUNHOFER GES FORSCHUNG (DE)
FROEBA BERNHARD (DE)
KUEBLBECK CHRISTIAN (DE)
FROEBA BERNHARD (DE)
KUEBLBECK CHRISTIAN (DE)
International Classes:
G06K9/00; G06T7/00; G06T7/73; (IPC1-7): G06K9/00; G06T7/00
Other References:
MAIO D ET AL: "Real-time face location on gray-scale static images", PATTERN RECOGNITION, PERGAMON PRESS INC. ELMSFORD, N.Y, US, vol. 33, no. 9, September 2000 (2000-09-01), pages 1525 - 1539, XP004243904, ISSN: 0031-3203
DONAHUE M J ET AL: "ON THE USE OF LEVEL CURVES IN IMAGE ANALYSIS", CVGIP IMAGE UNDERSTANDING, ACADEMIC PRESS, DULUTH, MA, US, vol. 57, no. 2, 1 March 1993 (1993-03-01), pages 185 - 203, XP000226774, ISSN: 1049-9660
SEITZ P ET AL: "THE DIGITAL DOORKEEPER - AUTOMATIC FACE RECOGNITION WITH THE COMPUTER", PROCEEDINGS OF THE ANNUAL INTERNATIONAL CARNAHAN CONFERENCE ON SECURITY TECHNOLOGY. TAIPEI, OCT. 1 - 3, 1991, NEW YORK, IEEE, US, vol. CONF. 25, 1 October 1991 (1991-10-01), pages 77 - 83, XP000300411, ISBN: 0-7803-0120-X
DONAHUE M J ET AL: "ON THE USE OF LEVEL CURVES IN IMAGE ANALYSIS", CVGIP IMAGE UNDERSTANDING, ACADEMIC PRESS, DULUTH, MA, US, vol. 57, no. 2, 1 March 1993 (1993-03-01), pages 185 - 203, XP000226774, ISSN: 1049-9660
SEITZ P ET AL: "THE DIGITAL DOORKEEPER - AUTOMATIC FACE RECOGNITION WITH THE COMPUTER", PROCEEDINGS OF THE ANNUAL INTERNATIONAL CARNAHAN CONFERENCE ON SECURITY TECHNOLOGY. TAIPEI, OCT. 1 - 3, 1991, NEW YORK, IEEE, US, vol. CONF. 25, 1 October 1991 (1991-10-01), pages 77 - 83, XP000300411, ISBN: 0-7803-0120-X
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