Search Patents
  • Patent number: 9129155
    Abstract: Systems and methods for initializing motion tracking of human hands within bounded regions are disclosed. One embodiment includes: a processor; reference and alternate view cameras; and memory containing a plurality of templates that are rotated and scaled versions of a base template. In addition, a hand tracking application configures the processor to: obtain reference and alternate view frames of video data; generate a depth map; identify at least one bounded region within the reference frame of video data containing pixels having distances from the reference camera that are within a specific range of distances; determine whether any of the pixels within the at least one bounded region are part of a human hand; track the motion of the part of the human hand in a sequence of frames of video data obtained from the reference camera; and confirm that the tracked motion corresponds to a predetermined initialization gesture.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: September 8, 2015
    Assignee: Aquifi, Inc.
    Inventors: Michele Stoppa, Britta Hummel, Carlo Dal Mutto, Giuliano Pasqualotto
  • Patent number: 9111135
    Abstract: Systems and methods for tracking human hands using parts based template matching within bounded regions are described. One embodiment of the invention includes a processor; an image capture system configured to capture multiple images of a scene; and memory containing a plurality of templates that are rotated and scaled versions of a finger template. A hand tracking application configures the processor to: obtain a reference frame of video data and an alternate frame of video data from the image capture system; identify corresponding pixels within the reference and alternate frames of video data; identify at least one bounded region within the reference frame of video data containing pixels having corresponding pixels in the alternate frame of video data satisfying a predetermined criterion; and detect at least one candidate finger within the at least one bounded region in the reference frame of video data.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: August 18, 2015
    Assignee: Aquifi, Inc.
    Inventors: Britta Hummel, Giridhar Murali