公开(公告)号：US09697608B1

公开(公告)日：2017-07-04

申请号：US14301599

申请日：2014-06-11

Applicant: Amazon Technologies, Inc.

Inventor： Oleg Rybakov ,  Avinash Aghoram Ravichandran ,  Daniel Bibireata ,  Ajay Kumar Mishra ,  Wei Zhang

IPC: G06K9/00 ,  G06T7/00 ,  H04N7/18

CPC classification number: G06T7/254 ,  G06K9/00456 ,  G06K9/00671 ,  G06K9/46 ,  G06K9/6211 ,  H04N7/18 ,  H04N7/183

Abstract: A computing device can be configured to analyze information, such as frames captured in a video by a camera in the computing device, to determine locations of objects in captured frames using a scene-based tracking approach without individually having to track the identified objects across the captured frames. The computing device can track scenes, a global planar surface, across newly captured frames and the changes to (or transformation) the scene can be used to determine updated locations for objects that were identified in previously captured frames. Changes to the scene between frames can be measured using various techniques for estimating homographies. An updated location for the particular object in the currently captured frame can be determined by adjusting the location of the object, as determined in the previously captured frame, with respect to the transformation of the scene between the previously captured frame and the currently captured frame.