Tag: 3d

Photo Measurement

VisualSize will be launching shortly with a service that will give accurate 3D measurements of things inside of 2D photos. To measure things accurately they need 2 photos of the same thing, but from different angles. The VisualSize algorithm automatically detects feature points in the 2 pictures and finds the matching pairs. It then uses the matching pairs to calculate coordinates of the 2 camera positions (x, y, z axes and origin in a 3D coordinate frame), and uses triangulation from the image to plane to the 3D coordinate frame to reconstruct the 3D scene. VisualSize can then measure length, angle, area and volume with a high degree of accuracy.

cool that this is becoming more mainstream. it is, of course, a mainstay for topographic maps.