Overview of techniques applicable to self-interference incoherent digital holography.
Overview of techniques applicable to self-interference incoherent digital holography.
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DOI：
10.2971/jeos.2013.13077
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发表时间：
2013-12
期刊：
影响因子：
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通讯作者：
Jisoo Hong;Myung K. Kim
中科院分区：
文献类型：
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作者：
Jisoo Hong;Myung K. Kim
自干涉非相干数字全息术（SIDH）是从非相干光照射的物体上获取复全息图的一种方法。SIDH具有自适应光学特性，可用于人眼视网膜细胞的成像研究。考虑到实际问题，与分辨率，相移，和对比度相关的问题应该得到解决，以实现可行的SIDH系统，该系统能够在非相干照明下记录人类视网膜细胞的全息信息。超分辨率图像重建技术可以直接应用于SIDH，在不改变系统结构的情况下提高系统的分辨率。我们提出了一种改进的方法，将相移本身纳入超分辨率技术所需的横向位移。针对相移问题，本文提出了一种任意相移恢复算法，该算法可以减少相移次数，并且可以接受盲相移。通过采用SIDH的离轴配置，单次激发成像也是可能的。我们将提供详细的程序来检索复杂的全息图使用所提出的任意相移算法和离轴配置。
Self-interference incoherent digital holography (SIDH) retrieves the complex hologram from the object illuminated by the incoherent light. Supported by the adaptive optic feature, SIDH is readily applicable to the ocular imaging to investigate the human retinal cells. Considering the practical issues, issues related to resolution, phase-shifting, and contrast should be addressed to implement the viable SIDH system which is capable of recording the holographic information of human retinal cells under the incoherent illumination. Super resolution image reconstruction technique can be directly applied to SIDH to enhance the resolution of the system without any change of configuration. We present the improved way to incorporate the phase-shifting itself into the lateral shift required by the super resolution technique. To deal with the phase-shifting issue, we present an arbitrary phase shift retrieval algorithm which can reduce the number of phase-shift and accept the blind phase-shift. The single-shot imaging is also possible by adopting the off-axis configuration of SIDH. We will provide the detailed procedures to retrieve the complex hologram using the proposed arbitrary phase shifting algorithm and the off-axis configuration.