Modeling of humanoid forms from depth maps

US8249334B2 · kind B2 · utility

Assignee

• Primesense Ltd · IL

Inventors

• Tamir Berliner · Tel Aviv-Yafo, IL
• Ziv Hendel · Herzliya, IL
• Alexander Shpunt · Nes Ziona, IL
• Jeffrey Danowitz · Nes Ziona, IL
• Dmitri Rais · Ramat Gan, IL
• Oren Mor · Nes Ziona, IL
• Michael Shpigelmacher · New York, US

Key dates

• Filing date: May 10, 2007
• Grant date: Aug 21, 2012
• Expiry date: Nov 23, 2028

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/30196
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A computer-implemented method includes receiving a depth map (30) of a scene containing a body of a humanoid subject (28). The depth map includes a matrix of pixels (32), each corresponding to a respective location in the scene and having a respective pixel value indicative of a distance from a reference location to the respective location. The depth map is segmented so as to find a contour (64) of the body. The contour is processed in order to identify a torso (70) and one or more limbs (76, 78, 80, 82) of the subject. An input is generated to control an application program running on a computer by analyzing a disposition of at least one of the identified limbs in the depth map.