发明名称 Detecting visual gestural patterns
摘要 A processing device and method are provided for capturing images, via an image-capturing component of a processing device, and determining a motion of the processing device. An adaptive search center technique may be employed to determine a search center with respect to multiple equal-sized regions of an image frame, based on previously estimated motion vectors. One of several fast block matching methods may be used, based on one or more conditions, to match a block of pixels of one image frame with a second block of pixels of a second image. Upon matching blocks of pixels, motion vectors of the multiple equal-sized regions may be estimated. The motion may be determined, based on the estimated motion vectors, and an associated action may be performed. Various embodiments may implement techniques to distinguish motion blur from de-focus blur and to determine a change in lighting condition.
申请公布号 US8144780(B2) 申请公布日期 2012.03.27
申请号 US20070859800 申请日期 2007.09.24
申请人 VASIREDDY SRINATH;CHUB SERGEY;HUA GANG;YANG TING-YI;MICROSOFT CORPORATION 发明人 VASIREDDY SRINATH;CHUB SERGEY;HUA GANG;YANG TING-YI
分类号 H04N7/12 主分类号 H04N7/12
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