A METHOD AND APPARATUS FOR MOTION ESTIMATION

摘要

A method of estimating motion between a pair of image frames of a given scene comprises calculating respective integral images for each of the image frames and selecting at least one corresponding region of interest within each frame. For each region of interest, an integral image profile from each integral image is calculated, each profile comprising an array of elements, each element comprising a sum of pixel intensities from successive swaths of the region of interest for the frame. Integral image profiles are correlated to determine a relative displacement of the region of interest between the pair of frames. Each region of interest is divided into a plurality of further regions of interest before repeating until a required hierarchy of estimated motion for successively divided regions of interest is provided.

主权项

1. A method of estimating motion between a pair of image frames of a given scene comprising:
a) calculating respective integral images for each of said image frames; b) selecting at least one corresponding region of interest within each frame; and c) for each region of interest:
i. calculating an integral image profile from each integral image, each profile comprising an array of elements, each element comprising a sum of pixel intensities from successive swaths of said region of interest for said frame;ii. correlating said integral image profiles to determine a relative displacement of said region of interest between said pair of frames; andiii. dividing each region of interest into a plurality of further regions of interest; and repeating step c) until a required hierarchy of estimated motion for successively divided regions of interest is provided.