人眼像差分量的动态估计

信号处理 Pub Date : 2001-08-06 DOI:10.1109/SSP.2001.955267

D. R. Iskander, M. Morelande, M. Collins

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引用次数: 8

摘要

为了提供足够的信息，以协助外科医生进行高级屈光矫正，必须解决由于脉搏和呼吸引起的眼睛像差的微波动问题。虽然离焦波动的影响是已知的，并得到了很好的描述，但关于模拟其他类型像差波动的报道却很少。我们提出了一种方法，其中高阶像差分量的动态建模参数调幅调频信号。利用我们的建模方法，可以预测和研究这些像差变化的影响。特别地，我们建立了与彗差和球差相关的组件的动力学模型。我们使用来自六个受试者眼睛的像差数据验证了所提出的建模方法。

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Estimating the dynamics of aberration components in the human eye

To provide adequate information that would assist surgeons in performing advanced refractive corrections, it is essential to address the problem of microfluctuations in the eye's aberrations due to pulse and respiration. Although the effects of fluctuations in defocus are known and well described, very little is reported on modelling the fluctuations in other types of aberrations. We propose a methodology in which the dynamics of higher order aberration components are modelled by parametric AM-FM signals. Using our modelling approach, the effects of changes in these aberrations could be predicted and studied. In particular, we model the dynamics of components related to coma and spherical aberration. We provide a validation of the proposed modelling approach using aberration data from the eyes of six subjects.

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来源期刊

信号处理

自引率

0.00%

发文量

5812

期刊介绍： Journal of Signal Processing is an academic journal supervised by China Association for Science and Technology and sponsored by China Institute of Electronics. The journal is an academic journal that reflects the latest research results and technological progress in the field of signal processing and related disciplines. It covers academic papers and review articles on new theories, new ideas, and new technologies in the field of signal processing. The journal aims to provide a platform for academic exchanges for scientific researchers and engineering and technical personnel engaged in basic research and applied research in signal processing, thereby promoting the development of information science and technology. At present, the journal has been included in the three major domestic core journal databases "China Science Citation Database (CSCD), China Science and Technology Core Journals (CSTPCD), Chinese Core Journals Overview" and Coaj. It is also included in many foreign databases such as Scopus, CSA, EBSCO host, INSPEC, JST, etc.