发明名称 Method, apparatus, and computer program product for object tracking
摘要 A method for object tracking is provided. The method may include identifying a first interest point, receiving a video frame, and detecting, via a processor, a second interest point in the video frame using a scale space image pyramid. The method may further include matching the second interest point with the first interest point, and determining a motion estimation based on the matched interest points. Similar apparatuses and computer program products are also provided.
申请公布号 US8818024(B2) 申请公布日期 2014.08.26
申请号 US200912402921 申请日期 2009.03.12
申请人 Nokia Corporation 发明人 Chen Wei-Chao;Gelfand Natasha;Pulli Kari Antero;Huynh Duy-Nguyen Ta
分类号 G06K9/00;G06T7/20;G06K9/46 主分类号 G06K9/00
代理机构 Alston & Bird LLP 代理人 Alston & Bird LLP
主权项 1. A method comprising: identifying a first interest point; receiving a first video frame; defining a neighborhood for the first interest point; detecting, via a processor, a second interest point in the neighborhood of the first video frame using a scale space image pyramid, the neighborhood being a portion of the scale space image pyramid; matching the second interest point with the first interest point; determining a motion estimation based on the matched interest points; generating a feature descriptor based at least on the second interest point; identifying a type of an object associated with the feature descriptor; augmenting the first video frame to include a label identifying the type of the object, the label being positioned within the first video frame based on the matched interest points; tracking the object in a subsequent video frame and within the neighborhood without recalculating the feature descriptor for the subsequent video frame; and augmenting the subsequent video frame such that the position of the label is updated with respect to the first video frame.
地址 Espoo FI