Higley Daniel J, Winters David G, Futia Gregory L, Bartels Randy A
Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, Colorado 80523, USA.
J Opt Soc Am A Opt Image Sci Vis. 2012 Dec 1;29(12):2579-90. doi: 10.1364/JOSAA.29.002579.
An analytic theory describing the effects of diffraction and aberrations on single-pixel imaging performed by temporally modulating illumination light is presented. This method encodes spatial information using sinusoidal temporal modulations that are chirped in frequency across the extent of an illumination line focus. With some approximations, a point spread function relationship as a function of defocus or other aberrations is found for both spatially coherent and incoherent cases. The theory is validated through experiments and simulations, including measurement of the transverse and longitudinal optical transfer function, and confirmation of insensitivity to aberrations and significant optical scattering after encoding of spatial information through temporal modulation.
提出了一种分析理论，用于描述衍射和像差对通过时间调制照明光进行的单像素成像的影响。该方法使用正弦时间调制对空间信息进行编码，这些调制在照明线焦点范围内的频率上呈啁啾变化。通过一些近似，在空间相干和非相干情况下都找到了作为离焦或其他像差函数的点扩散函数关系。该理论通过实验和模拟得到验证，包括横向和纵向光学传递函数的测量，以及通过时间调制编码空间信息后对像差和显著光学散射不敏感的确认。
