Distance measuring apparatus having distance correction function

A distance measuring apparatus, comprising a light emitting section which emits reference light to a target measurement space at a predetermined light emission timing, and a plurality of light receiving elements which are two-dimensionally arranged and which receive incident light from the target measurement space at a predetermined image capture timing, wherein the distance measuring apparatus outputs a distance image to an object in the target measurement space based on light reception amounts of the light receiving elements, and a two-dimensional image corresponding to the distance image, the distance measuring apparatus further comprising:

• a reference object distance calculation section which calculates a distance to the reference object based on the two-dimensional image in which a reference object including a plurality of feature points having three-dimensional coordinate correlations is captured, and
• a correction amount calculation section which calculates a correction amount for correcting the distance image by comparing the calculated distance to the reference object with a distance measurement value to the reference object in the distance image.