IMAGING SYSTEM AND METHOD FOR MONITORING A FIELD OF VIEW

摘要

An imaging system is provided for monitoring a field of view with a two-dimensional array of photo elements on which the field of view is imaged. The imaging system determines for each photo element a distance between the photo element and a surface of an object in the field of view by light emitted into the field of view and subsequently arriving on the photo elements and to determine a distance vector to form a coordinate image that includes the distance vector. A first memory unit stores the coordinate image, a second memory unit stores logical relations for the photo elements. A processing unit determines for each of the photo elements whether a logical relation is fulfilled and outputs a trigger signal when at least one of the logical relations is fulfilled.