METHOD OF SUBPIXEL CONTROL AND TRACKING OF REMOTE OBJECT MOTION Russian patent published in 2014 - IPC G01B11/03 

FIELD: measurement equipment.

SUBSTANCE: invention relates to optical methods of control and tracking of displacement in coordinates of reference points of remote objects. According to the method, the optical channel of observation is realised in the form of the following components arranged in series along the optical axis of the unit of a point source installed on the reference point of the movable system of coordinates, a long-focal lens and a digital video camera connected to a personal computer. The centre of a CCD matrix in the video camera is matched with the point of origin of the fixed system of coordinates. When a video signal of observation is generated, a screen and a point source are used with radiation at the wave length in the red spectral range. Processing of information on CCD matrix exposure from the point source is carried out in the personal computer in two stages. At the first stage they search for an image area with the exposure spot, and coordinates of this area are identified. At the second stage in the found area they determine coordinates of the centre of exposure spot gravity, and its displacement from the start of coordinates is calculated in the fixed system of coordinates. As a result this displacement is re-calculated and converted for a reference point on the remote movable system of coordinates.

EFFECT: higher accuracy of remote object positioning.

3 cl, 8 dwg