Video Motion Detection

Abstract

A video motion detection apparatus includes a mechanism applying a motion test by comparing test areas of an image with respective sets of candidate areas in that or another image and generating motion vectors in dependence on a displacement between each test area and a candidate area giving a greatest similarity between the test area and that candidate area; and a mechanism applying an integrity test to test the motion vectors. For a motion vector failing the integrity test, the corresponding test area is divided into two or more smaller test areas and the motion test is applied again in respect of the two or more smaller areas, and a motion vector passing the integrity test is made available as an output of the apparatus.

Dependencies are inferred from the claim text.