Distance measurement apparatus

摘要

A distance measurement apparatus of the present invention outputs image signal from the area sensor to which an optical image is input from a plurality of distance measurement areas two-dimensionally distributed in an area to be shot. A calculation control circuit detects portions changing equally to or more than a predetermined value in positive or negative directions, for the output level of pixel rows arranged on a plurality of straight lines included in the image signal. The distance measurement area is identified, based on the output of this calculation control circuit.