LANE PARTITION MARKING DETECTION APPARATUS, AND DRIVE ASSIST SYSTEM

A lane separation mark detection apparatus 100 includes imaging units 11 and 12 to capture a lane separation mark separating a lane on which a vehicle is traveling; a lane separation mark detection unit 24 to detect the lane separation mark from at least one piece of image data among pieces of image data, each piece of the image data being generated by the corresponding one of the imaging units; a road form estimation unit 25 to estimate a road form from the lane separation mark detected by the lane separation mark detection unit; and an image data determination unit 26 to determine, according to the lane separation mark depending on the road form estimated by the road form estimation unit, the piece of the image data to be used by the lane separation mark detection unit for detecting the lane separation mark.