用PSF整形来缓和瑞利诅咒
Tempering Rayleigh's curse with PSF shaping
摘要：
有人认为，对于一个空间不变的成像系统，人们可以获得的信息的分离两个不相干的点源衰减二次为零，减少分离，一种效果称为瑞利的诅咒。与此相反，我们确定了一类点扩散函数的线性信息减少。此外，我们表明，任何行为良好的对称点扩散函数可以转换成这样的形式与一个简单的非吸收正负号滤波器。我们的实验证明了显着的超分辨率能力的基础上，这个想法。
英文摘要：
It has been argued that, for a spatially invariant imaging system, the information one can gain about the separation of two incoherent point sources decays quadratically to zero with decreasing separation, an effect termed Rayleigh's curse. Contrary to this belief, we identify a class of point spread functions with a linear information decrease. Moreover, we show that any well-behaved symmetric point spread function can be converted into such a form with a simple nonabsorbing signum filter. We experimentally demonstrate significant superresolution capabilities based on this idea.
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