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Data · dataset · 2025

SiM-SHDR: single-layer metasurface for snapshot high dynamic range imaging

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Imaging systems based on metasurfaces have advantages in terms of integration and flexibility.

Description

Here, we present a single-layer metasurface for snapshot high dynamic range (HDR) Imaging scheme (SiMSHDR). The metasurface can integrate functions of multiple components found in traditional HDR imaging systems.

Benefiting from the polarization-independent full-space amplitude and phase control mechanism, the single-layer metasurface is capable of capturing multiple high-fidelity images with different levels of intensity in a single shot. After fusing the images, the dynamic range of the pictures can be effectively extended. Using dual-channel image capture configuration with an intensity ratio of 10:1, the dynamic range can theoretically be enhanced by up to 20 dB.

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Experimental results in our demonstrated imaging system show the dynamic range improvement can reach 17.5 dB and even more. This metasurface design maintains a similar weight and volume to traditional single-image acquisition systems, making it ideal for lightweight, ultra-compact and real-time HDR imaging in applications like surveillance, industrial manufacturing, and driving.

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Inferred from text
Biomedical engineering 70% · Image 75% · Imaging 75%
Provenance · 1 source records, 12 field assertions
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ScienceDB10.57760/sciencedb.2489211 d agoJSON v1
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