We introduce a novel phase-shifting digital holography (PSDH) method leveraging a hybrid event-based vision sensor (EVS). The key idea of our method is the phase shift during a single exposure. The hybrid EVS records a hologram blurred by the phase shift, together with the events corresponding to blur variations. We present analytical and optimization-based methods that theoretically support the reconstruction of full-complex wavefronts from the blurred hologram and events. The experimental results demonstrate that our method achieves a reconstruction quality comparable to that of a conventional PSDH method while enhancing the acquisition efficiency.
翻译:本文提出了一种利用混合事件视觉传感器(EVS)的新型相移数字全息术(PSDH)方法。本方法的核心思想是在单次曝光期间实现相移。混合EVS记录下因相移而模糊的全息图,以及对应模糊变化的事件流。我们提出了解析方法与基于优化的方法,从理论上支持从模糊全息图与事件数据中重建完整复波前。实验结果表明,本方法在提升采集效率的同时,其重建质量可与传统PSDH方法相媲美。