The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2014
Filed:
Sep. 11, 2012
Oliver (“lake”) Watkins, Jr., Toronto, CA;
Yousuf Chowdhary, Jr., Maple, CA;
Jeffrey Brunet, Richmond Hill, CA;
Ravinder (“ray”) Sharma, Toronto, CA;
Ling Guan, Toronto, CA;
Yun Tie, Mississauga, CA;
Rui Zhang, Qingdao, CN;
Oliver (“Lake”) Watkins, Jr., Toronto, CA;
Yousuf Chowdhary, Jr., Maple, CA;
Jeffrey Brunet, Richmond Hill, CA;
Ravinder (“Ray”) Sharma, Toronto, CA;
Ling Guan, Toronto, CA;
Yun Tie, Mississauga, CA;
Rui Zhang, Qingdao, CN;
2343127 Ontario Inc., Toronto, Ontario, CA;
Abstract
A method is provided for detecting a body part in a video stream from a mobile device. A video stream of a human subject is received from a camera connected to the mobile device. The video stream has frames. A first frame of the video stream is identified for processing. This first frame is then partitioned into observation windows, each observation window having pixels. In each observation window, non-skin-toned pixels are eliminated; and the remaining pixels are compared to determine a degree of entropy of the pixels in the observation window. In any observation window having a degree of entropy above a predetermined threshold, a bounded area is made around the region of high entropy pixels. The consistency of the entropy is analyzed in the bounded area. If the bounded area has inconsistently high entropy, a body part is determined to be detected at that bounded area.