Invention Grant
US08411149B2 Method and device for identifying and extracting images of multiple users, and for recognizing user gestures
失效
用于识别和提取多个用户的图像并识别用户手势的方法和设备
- Patent Title: Method and device for identifying and extracting images of multiple users, and for recognizing user gestures
- Patent Title (中): 用于识别和提取多个用户的图像并识别用户手势的方法和设备
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Application No.: US12309800Application Date: 2006-08-03
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Publication No.: US08411149B2Publication Date: 2013-04-02
- Inventor: Benoît Maison , Xavier Sohy
- Applicant: Benoît Maison , Xavier Sohy
- Applicant Address: BE Louvain-la-Neuve
- Assignee: Alterface S.A.
- Current Assignee: Alterface S.A.
- Current Assignee Address: BE Louvain-la-Neuve
- Agency: Fisher Technology Law PLLC
- International Application: PCT/EP2006/065054 WO 20060803
- International Announcement: WO2008/014826 WO 20080207
- Main IPC: H04N5/225
- IPC: H04N5/225

Abstract:
The invention relates to a method for identifying and extracting images of one or more users in an interactive environment comprising the steps of: —obtaining a depth map (7) of a scene in the form of an array of depth values, and an image (8) of said scene in the form of a corresponding array of pixel values, said depth map (7) and said image (8) being registered; applying a coordinate transformation to said depth map (7) and said image (8) for obtaining a corresponding array (15) containing the 3D positions in a real-world coordinates system and pixel values points; —grouping said points according to their relative positions, by using a clustering process (18) so that each group contains points that are in the same region of space and correspond to a user location (19); —defining individual volumes of interest (20) each corresponding to one of said user locations (19); —selecting, from said array (15) containing the 3D positions and pixel values, the points located in said volumes of interest for obtaining segmentation masks (35) for each user; —applying said segmentation masks (35) to said image (8) for extracting images of said users. The invention also relates to a method for recognizing gestures of said users.
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