THREE-DIMENSIONAL OBJECT DETECTION DEVICE

A three-dimensional object detection device includes an image capturing unit, an image conversion unit, a three-dimensional object detection unit, a three-dimensional object assessment unit and a control unit. The image conversion unit converts a viewpoint of the images obtained by the image capturing unit to create bird's-eye view images. The three-dimensional object detection unit detects a presence of a three-dimensional object within the predetermined detection area by vehicle width direction detection processing. The three-dimensional object assessment unit assesses whether the three-dimensional object detected is another vehicle that is present within the predetermined detection area. The control unit suppresses assessment by the three-dimensional object assessment unit that the three-dimensional object is a vehicle when a specified detection position has moved rearward within the detection area in a host vehicle progress direction and arrived at a predetermined position in the host vehicle progress direction within the detection area.