Investigation of Optical Scanning Holography & Real-Time Two-Pupil Processing

提出了一种在瞳孔相互作用下双瞳孔合成的声光方法，用于合成非相干图像处理中的双极性点扩散函数。该方法是通过声光衍射同时扫描输入与两个瞳孔对应的脉冲响应，这些脉冲响应在时间频率上被抵消。随后的外差检测解调合成的PSF。有人指出，当处理器在失焦模式下工作时，即扫描光束没有完全聚焦到输入上，处理器的应用可以扩展到包括全息记录，有点像侧视雷达。在本文提出的项目中，研究了这种新的光学扫描全息方法。此外，该处理器在失焦状态下的潜在应用，在双瞳处理的背景下进行了进一步的研究。这种处理器的潜在重要应用是用于大规模对象的光学全息学领域以及用于二维对象的全息图的电视传输领域。这项工作的结果也可能导致更好的三维信息处理。

An acousto-optic approach to two-pupil synthesis in a pupil interaction regime has been proposed to synthesize bipolar point spread functions (PSFs) in incoherent image processing. The method consists of simultaneously scanning the input with the impulse responses corresponding to the two pupils which are offset in temporal frequency via acousto-optic diffraction. Subsequent heterodyne detection demodulates the synthesized PSF. It has been pointed out that, when the processor is operated in an out-of-focus mode, i.e., the scanning beam is not focused onto the input exactly, the applications of the processor can be extended to include holographic recording, somewhat reminiscent of side-looking radar. In the project proposed here, this novel approach to optical scanning holography is investigated. Also, the potential applications of the processor, while operated in the out-of-focus regime, are investigated further in the context of two-pupil processing. The potential significant applications of such a processor are in the area of optical holography for large-scale objects as well as that of television transmission of a hologram for two-dimensional objects. The results of this work could also lead to better 3-D information processing.