公开(公告)号：US20170161565A1

公开(公告)日：2017-06-08

申请号：US15081118

申请日：2016-03-25

Applicant: Texas Instruments Incorporated

Inventor： HRUSHIKESH TUKARAM GARUD ,  MANU MATHEW ,  SOYEB NOORMOHAMMED NAGORI

IPC: G06K9/00 ,  H04N19/513 ,  G06K9/52 ,  G06T7/60 ,  G06T7/20 ,  G06K9/66

CPC classification number: G06K9/00791 ,  G06K9/00758 ,  G06K9/52 ,  G06T7/207 ,  G06T7/223 ,  G06T7/238 ,  G06T7/269 ,  G06T2207/10016 ,  G06T2207/20016 ,  G06T2207/20032 ,  H04N19/53

Abstract: An image processing system includes a processor and optical flow (OF) determination logic for quantifying relative motion of a feature present in a first frame of video and a second frame of video that provide at least one of temporally and spatially ordered images with respect to the two frames of video. The OF determination logic configures the processor to implement performing OF estimation between the first frame and second frame using a pyramidal block matching (PBM) method to generate an initial optical flow (OF) estimate at a base pyramid level having integer pixel resolution, and refining the initial OF estimate using at least one pass of a modified Lucas-Kanade (LK) method to provide a revised OF estimate having fractional pixel resolution.