Distance information processing apparatus, imaging apparatus, distance information processing method and program

A distance information processing apparatus comprising:

• a memory and a processor, which function as:
• (1) an acquirer configured to acquire a distance image signal constituted by a plurality of distances to an object in a depth direction in regions of an image signal;
• and
• (2) a determiner configured to determine positional confidence of the distances for the regions of the image signal based on differences among a plurality of positions in an in plane direction perpendicular to the depth direction, the plurality of positions respectively corresponding to the plurality of distance in the depth direction, the determiner being further configured to determine the positional confidence based on at least one of (a) an object cyclicity which is calculated based on the image signal and (b) a brightness saturation degree which is calculated based on the image signal.