Single-pixel temporal imaging

Start date 01 February 2021

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Client University of Glasgow
Investigator

Dr David Nugent
david.nugent@elucidare.co.uk

 


Abstract

Since the first photograph was taken nearly 200 years ago, imaging systems have relied on the registration of light focused upon a two-dimensional light-sensitive surface. Modern digital cameras maintain this tradition via the quantification of light intensities across a pixelated sensor array. Single-pixel temporal imaging represents an exciting new paradigm, whereby the scene is imaged through the time-domain analysis of pulsating waves reflected off the target object and its surroundings. Unlike conventional single-pixel imaging, the University of Glasgow innovation does not require the imposition of a spatially filtered light, but reconstructs each frame using machine learning and Artificial Neural Network (ANN). This patent-pending invention can utilise excitation waves operating across the electromagnetic spectrum, meaning visible light or microwaves, and even acoustic signals. Conceivable applications include objection recognition within the security and defence sector, healthcare, robotics, IoT imaging, and automotive collision avoidance systems. Elucidare has been retained to develop a commercialisation strategy for the innovation and welcomes input from interested parties.


Demonstration

The video below shows single-pixel temporal imaging through the analysis of 77GHz microwaves reflected off the target scene.  Each frame is rendered in real time and compared alongside the image obtained from a standard time-of-flight 3D camera.

 




Further reading

More information on the patent-pending University of Glasgow innovation can be obtained from the publications highlighted below.

 

Documents available for download

Variational Inference for Computational Imaging Inverse Problems

Super-resolution time-resolved imaging using computational sensor fusion
Detection, identification, and tracking of objects hidden from view with neural networks download here
Spatial images from temporal data download here
Patent application: Method and apparatus for three-dimensional imaging