Patent ID: 9207074
Filing Date: 2015-12-08
Classification: G01C,G01S

Abstract:
1. A distance measurement apparatus that scans an object by using a light beam, comprising: a processor configured to obtain a distance to an object based on a light beam reflected from the object; sample positions for N laps with a sampling interval of every N points, N being an integer of two or more, and in a second lap after a first lap, sample positions are deviated from those in the first lap; and designate a first mode which controls a projection angle of the light beam so that the sampling positions in a given number of successive scans do not overlap when the distance to the object is greater than or equal to a threshold value, and designate a second mode which controls the projection angle of the light beam so that the sampling positions overlap in each scan when the distance to the object is less than the threshold value, wherein the processor is configured to obtain, in the first mode, the distance to the object based on distance data in which data for sampling positions in a given number of scans are added, and obtain, in the second mode, the distance to the object based on an averaged distance data for data for sampling positions in which each scan overlaps.