Compressive Holographic Video
Zihao Wang, Leonidas Spinoulas, Kuan He, Huaijin Chen, Lei Tian,, Aggelos K. Katsaggelos, Oliver Cossairt

TL;DR
This paper introduces a novel method combining compressive holography and coded exposure to achieve 4D space-time reconstruction from a single image, enabling high-speed imaging of fast-moving objects.
Contribution
It extends compressive holography with coded exposure techniques to enable 4D reconstruction from one captured image, demonstrating 10x temporal super-resolution.
Findings
Achieved 10x temporal super-resolution.
Successfully reconstructed multiple depths from a single image.
Recorded subtle vibrations and tracked small particles within 5 ms.
Abstract
Compressed sensing has been discussed separately in spatial and temporal domains. Compressive holography has been introduced as a method that allows 3D tomographic reconstruction at different depths from a single 2D image. Coded exposure is a temporal compressed sensing method for high speed video acquisition. In this work, we combine compressive holography and coded exposure techniques and extend the discussion to 4D reconstruction in space and time from one coded captured image. In our prototype, digital in-line holography was used for imaging macroscopic, fast moving objects. The pixel-wise temporal modulation was implemented by a digital micromirror device. In this paper we demonstrate temporal super resolution with multiple depths recovery from a single image. Two examples are presented for the purpose of recording subtle vibrations and tracking small particles within 5…
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Taxonomy
MethodsSPEED: Separable Pyramidal Pooling EncodEr-Decoder for Real-Time Monocular Depth Estimation on Low-Resource Settings
