Real Time 3D Measurement by Single Camera

Close Range Measurement is usually made by stereo camera which two cameras are fixed with known distance.

ITTC's stereo camera		single video camera

But this system tends to be complicating since it requires calibration of camera position and synchronization of two cameras, and it is expensive.

Single Camera version of PhotoCalc, however, can calculate 3D position by one camera, so it is affordable and nothing special is required except target for certain cases. SingleView3D can be used for 3D inspection of object and for tracking object.

      

Application

1.Distance measurement

Real time calculation of 5 point positions in the same plane, and distance from camera. One set of general webcamera is used for this calculation.

2.Position measurement/3Dscan

The 3D position of targets attached to probe can be detected and used as 3D digitizer. Get the position of probe tip and show its locus.

3.Meausrement of moving object

The 3D position of an object is calculated by its shape and color in an image.

3-1Helmet

Detect Helmet and show the distance from camera.

3-2 Car to car distance

Attach video camera		Detecting Lamp or Plate

Detect the distance to the car moving ahead

4.Camera as GPS

By taking an image of two control bars together, the present camera position is obtained and the camera position can be traced.  If multiple cameras are used, the position of moving object can be detected as GPS.

5.Field Measurement

・Probe tip position
・Distance between two control bars

6.Robot

Attach targets to robot and detect the position of particular point.

7.Identification and Handling of products

If the dimension of an object is known, the robot can know the position and the direction to the object.

8.Security

Get characteristic points of an object in 3D and compare them with database to identify person or object.

9.Amusement

Detect 3D position of moving ball in real time.