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| Research on XRII Image Distortion Correction Based on Biharmonic Spline Surface Interpolation |
| Yuanjin Li, Huazhong Shu, Yang Chen, Tao Wang, Zuogang Yue, Yang Wang |
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Abstract X-Ray Image Intensifier (XRII) suffers from serve distortion in
C-arm CT imaging system. To overcome the challenging problem, this
paper proposes a novel XRII correction based on the Biharmonic
Spline Surface Interpolation (BSSI) framework. In our study, two
functions \(X_2=$$f(X_1, Y_1)\) and \(Y_2=$$f(X_1, Y_1)\) are first
developed to map the relation between pixels positions in the
distorted XRII image and reference image. A bilinear interpolation
can then be applied to estimate the corrected pixel intensities to
achieve the final image. The proposed approach can well overcome the
discontinuities problems in local algorithms and achieve improved
accuracy in distortion correction. Experiment results demonstrate
that the proposed algorithm is capable of providing XRII images with
higher correction precision than classical algorithms.
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| Cite this article: |
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Yuanjin Li,Huazhong Shu,Yang Chen, et al. Research on XRII Image Distortion Correction Based on Biharmonic Spline Surface Interpolation[J]. Journal of Fiber Bioengineering and Informatics, 2015, 8(2): 329-336.
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2015, Vol. 8 
