Abstract: A video camera arrangement comprises an image capture device; a face detector for detecting human faces in the captured video material and for generating face data identifying detected occurrences of faces in the captured video material; a data handling medium by which data representing the captured images is transmitted and/or stored; and a processor for generating data to be transmitted or stored by the data handling medium in dependence on the detection of faces in the captured images.

Abstract: Face detection apparatus generating an output indicative of the likelihood of test regions of a test image containing a face comprises means operable to compare a test region with face data indicative of the presence of a face in such a way as to detect plural respective likelihood value indicative of the likelihood of the test region containing a face of a group of respective different face sizes; and control means, responsive to metadata associated with the image defining one of a set of predetermined classifications of the image, for modifying the group and/or the likelihood values in dependence upon a face size or range of face sizes appropriate to the classification of that image.