3D measurement of a moving object using 3D accelerometer attached to moving camera

A measuring method by using a moving camera and a 3D accelerometer attached under the camera is proposed to identify the distance from the camera to the surface of the moving object and the position movement of the object in continuous two frame images. It makes possible to measure 3D position of a moving object with a half computational cost by keeping the same accuracy comparing to the method using stereo camera. The 3D measurement experiments with several original images show that the computation time of the proposed method is about 2 times faster than that of stereo camera method. The proposed method is planning to be used to avoid obstacles for vehicles or mobile robots, and the utilization as a depth measuring device is also investigated.