| 基于双通性重现视网膜图象的解卷积方法 |
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| 引用本文： | 叶大田,郑玲.基于双通性重现视网膜图象的解卷积方法[J].清华大学学报(自然科学版),1995(1). |
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| 作者姓名： | 叶大田 郑玲 |
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| 作者单位： | 清华大学电机工程与应用电子技术系 |
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| 摘 要： | 根据人眼光学系统的双通性，论证了从眼底视网膜的反射光出发，沿光传输的逆方向，用计算机实现解卷积的方法，可恢复出视网膜上输入光束的成象。该解卷积算法获得的眼球光学系统的点扩散函数和光学传递函数，可用来评价视网膜图象的质量。介绍了实现上述求解过程的一种光学－数字－计算机混合系统以及使用该系统的仿真结果。结果证明，该系统具有客观性强，可自动校准以及可动态记录等优点。
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| 关 键 词： | 视网膜，图象处理，二维傅立叶变换，点扩散函数，光学传递函数，解卷积 |
A deconvolution method based on the double pass features to reconstruct the retina image |
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| Ye Datian,Zheng Ling.A deconvolution method based on the double pass features to reconstruct the retina image[J].Journal of Tsinghua University(Science and Technology),1995(1). |
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| Authors: | Ye Datian Zheng Ling |
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| Institution: | Ye Datian,Zheng LingDepartment of Electrcal Engineering and AppliedElectronic Technology,Tsinghua University |
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| Abstract: | ased on the double pass features of the human eye,the reconstruction of the image of incident light on retina can be calculated by the computer using the deconvolution algorithm when the incident light is reflected from retina and propagated in the negativedirection of the incidence. Using the deconvolution,the point-spread function and the opticaltransfer function of optical system of the human eye are obtained. These two functions can beused to evaluate the quality of retina image. A hybrid optica-digital-computer system is designed to accomplish the solution of above functions. Also the results of the simulation arepresented. The results show that the hybrid system is advanced at the objectivity, autocalibration and dynamic recording. |
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| Keywords: | retina two-dimensional Fourier transform image processing point-spread function optical transfer function deconvolution |
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