Patent ID: 9619934
Date: 2017-04-11
CPC Classifications: G01B,G01C,G01M,G01S,G06T,H04N

Claim:
1. A method for estimating values for a set of parameters of an imaging system, the method comprising: taking at least two pictures with the imaging system, where the at least two pictures are taken from different positions and where the at least two pictures comprise an at least partially overlapping area; sending out pulses to the at least partially overlapping area with a sender system that is different from the imaging system; detecting the reflected pulses by a detector system that is different from the imaging system and calculating distances between the sender system and the respective point where the pulses were reflected based on the travel time of the pulses; associating positioning data to the pictures and to the calculated distance between the points where the pulses were reflected and the sender of the pulses, said positioning data comprising a position and pointing direction of the imagining system and the sender of the pulses; calculating first information about the area, based on the at least two pictures, the information comprising at least one quantity of the area, the at least one quantity comprising at least one of size or position, calculating second information related to the calculated distances to the at least partly overlapping area, the second information comprising at least one quantity of the area, the at least one quantity comprising at least one of size or position; comparing values for the at least one quantity contained in the first information and the at least one quantity contained in the second information; and if the value for at least one quantity of the area obtained from the first information differs from the value for the corresponding at least one quantity of the area obtained from the second information, calculating at least one of values or an error estimate for the set of parameters of the imaging system based on the difference, wherein: