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SYSTEM AND METHOD FOR DETERMINING ENGAGEMENT OF AUDIENCE MEMBERS DURING A LECTURE
SYSTEM AND METHOD FOR DETERMINING ENGAGEMENT OF AUDIENCE MEMBERS DURING A LECTURE
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机译：在演讲期间确定听众参与度的系统和方法
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摘要
A system and method for determining engagement of members of an audience during a lecture. Speech by the lecturer is detected to initiate image processing, which is performed by first capturing the audience in multiple image frames using a video camera; performing edge detection on an image frame to generate a digital edge map of the frame; detecting an approximate facial region skeletal image candidate in the image frame including circular and elliptical shapes for iris, eye and face; extracting location information for a candidate face in the image frame, including eyes and irises in the skeletal image to generate approximate facial region location information; and determining, from the location information, whether required spatial relationships exist within a candidate, for that candidate to be considered as a face of one of the members. When an iris is essentially circular, the member with a corresponding face is considered to be engaged.
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