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Volume 38 Issue 11
Nov.  2012
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Journal of Beijing University of Aeronautics and Astronautics  > 2012  >  (11): 1440-1444.
Yang Min, He Xiaoyi, Wei Dongbo, et al. Image distortion fast correction for image intensifier DR/CT system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, (11): 1440-1444. (in Chinese)
Citation: Yang Min, He Xiaoyi, Wei Dongbo, et al. Image distortion fast correction for image intensifier DR/CT system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, (11): 1440-1444. (in Chinese)
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Image distortion fast correction for image intensifier DR/CT system

  • 1.

    School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • 2. China Special Equipment Inspection and Research Institute, Beijing 100013, China

  • Received Date: 15 Jul 2011
  • Publish Date: 30 Nov 2012
    Abstract
  • Starting from the distortion characteristics, correction precision and real time correction requirements for XRS-152/153 image intensifier DR/CT system, a cubic polynomial curve-fitting algorithm was proposed. Meanwhile, in order to solve its calculation complexity problem, graphic processing unit (GPU) was applied to make use of its high parallel and fast floating-point calculation abilities. In the implementation, the image was mapped to the GPU’s texture and multi-thread parallel calculation was adopted. The experimental results show that the correction algorithm could effectively restore the original information of the image. In addition, the acceleration with GPU could realize the real-time distortion correction without the loss of image information.

     

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