Title:
DEPTH MAP-BASED HEURISTIC FINGER DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/049801
Kind Code:
A1
Abstract:
Disclosed is a depth map-based heuristic finger detection method. The method comprises: acquiring, from a depth map of a user, a hand connected domain; calculating a central point of the hand connected domain; performing calculation to obtain multiple distant points having maximum 3D geodesic distances from the central point in the hand connected domain; detecting a fingertip and a finger region from the multiple obtained distant points; and outputting a position of the fingertip and the finger region. The invention employs a 3D geodesic distance to calculate and detect a fingertip of a user without extracting an outline of a hand region, thereby increasing robustness of gesture detection, and reducing a detection error rate. The method has high finger detection accuracy and a high calculation speed.
Inventors:
TANG XIAOJUN (CN)
ZHAO JIBO (CN)
ZHAO JIBO (CN)
Application Number:
PCT/CN2017/077065
Publication Date:
March 22, 2018
Filing Date:
March 17, 2017
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
G06K9/00
Foreign References:
| CN102778953A | 2012-11-14 | |||
| CN103353935A | 2013-10-16 | |||
| CN103488972A | 2014-01-01 | |||
| US20140118335A1 | 2014-05-01 |
Other References:
See also references of EP 3514724A4
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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