A real time image sequence processing algorithm for target ranging

Xiao-ning Fu; Shang-qian Liu; En-ke Li

doi:10.1117/12.725346

11 January 2007 A real time image sequence processing algorithm for target ranging

Xiao-ning Fu, Shang-qian Liu, En-ke Li

Proceedings Volume 6279, 27th International Congress on High-Speed Photography and Photonics; 62793A (2007) https://doi.org/10.1117/12.725346
Event: 27th International congress on High-Speed Photography and Photonics, 2006, Xi'an, China

Abstract

It investigated in an image sequence procession algorithm for finding the distance from a moving target in space to the mobile camera. Through 4-pairs points matching in adjacent image frame, the radial distance variation between adjacent sampling times was calculated, with the target's azimuth, pitching, characteristic linearity and the space coordinate of the camera jointed, a 4-order non-linearity equation was set up, distance from target to the camera at former time, i.e., the only meaningful solution to the equation was solved, then obtained the distance from target to the camera at this time. The ranging principle was explained, the ranging equation was deduced, the ranging error was analyzed, and the relative measurement data and experiment results were given. It was suggested by our research that this algorithm could estimate the distance from a moving target in space to the camera with only two image needed, an experiment was conducted to illustrate the effectiveness and the validity of the algorithm. This scheme is valid to any rigid target in three-dimension movement which could be superficially imaging and had a distance variation between adjacent sampling time meanwhile, the algorithm can be realized with DSP and VLSI chips at 25 frame per second.

Citation Download Citation

Xiao-ning Fu, Shang-qian Liu, and En-ke Li "A real time image sequence processing algorithm for target ranging", Proc. SPIE 6279, 27th International Congress on High-Speed Photography and Photonics, 62793A (11 January 2007); https://doi.org/10.1117/12.725346

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