MetaHDR: single shot high-dynamic range imaging and sensing using a multifunctional metasurface

Researchers at Purdue University have developed MetaHDR, a single-shot high dynamic range (HDR) imaging and sensing system. MetaHDR system captures HDR images with a single or few exposures and creates multiple low dynamic range (LDR) images simultaneously. Current solutions for generating single-capture HDR images require specialized photosensors and circuitry. MetaHDR instead utilizes more conventional camera and sensor technologies. Single-shot HDR photography and videography with real-time sensing applications make MetaHDR particularly useful for surveillance, microscopy, and advanced manufacturing.

Technology Validation:

This technology was validated through experimentation using a fabricated metasurface. Results show more than a 50 dB increase in dynamic range.

Advantages:

-Captures multiple imagines simultaneously in a single shot

-All photodetectors have the same integration time

-Wide range of applications

-Improves dynamic range

-Multifunctional

Applications:

-Surface Monitoring

-Surveillance and Security

-Microscopic Imaging

-Advanced Manufacturing

-Computational imaging

Publication:

Brookshire, C., Liu, Y., Chen, Y., Chen, W. T., & Guo, Q. (2024). MetaHDR: Single Shot High-Dynamic Range Imaging and Sensing using a Multifunctional Metasurface. Optica Open Preprints. https://preprints.opticaopen.org/articles/preprint/MetaHDR_Single_Shot_High-Dynamic_Range_Imaging_and_Sensing_using_a_Multifunctional_Metasurface/25719513

TRL: 3

Intellectual Property:

Keywords: HDR imaging,Real-time imaging systems,Advanced optical sensors,AI-enabled surveillance,Smart manufacturing vision,Single-shot image capture,Imaging for quality inspection,Optical surface monitoring,Computational imaging,Industrial microscopy,High-performance imaging,Multifunctional imaging systems,Imaging system integration,Vision systems for automation