10. The three-dimensional measurement apparatus according to claim 1 , wherein the three-dimensional data calculator calculates the three-dimensional data with a method not using the epipolar line in a case where the first rotation matrix indicates that the first image capture position and the second image capture position are not rotated.
10. The three-dimensional measurement apparatus according to claim 1 , wherein the three-dimensional data calculator calculates the three-dimensional data with a method not using the epipolar line in a case where the first rotation matrix indicates that the first image capture position and the second image capture position are not rotated. 11. The three-dimensional measurement apparatus according to claim 10 , wherein the three-dimensional data calculator compares the three-dimensional data calculated based on the first virtual translation distance with the three-dimensional data calculated based on a third virtual translation distance representing a distance between the imaging units at the first and second image capture positions, different from the distance represented by the first virtual translation distance, and determined by an assumption of the first virtual translation distance, and calculates the first virtual translation distance and the three-dimensional data which make a difference between the three-dimensional data calculated using the first virtual translation distance and the three-dimensional data calculated using the third virtual translation distance less than or equal to a predetermined threshold value.