Journal Article

Simultaneous real-time visible and infrared video with single-pixel detectors

Edgar, Matthew. P., Welsh, Stephen S., Bowman, Richard W., Mitchell, Kevin J., Radwell, Neal, Padgett, Miles J., Sun, Baoqing, Gibson, Graham M.

2015

Overview

Conventional cameras rely upon a pixelated sensor to provide spatial resolution. An alternative approach replaces the sensor with a pixelated transmission mask encoded with a series of binary patterns. Combining knowledge of the series of patterns and the associated filtered intensities, measured by single-pixel detectors, allows an image to be deduced through data inversion. In this work we extend the concept of a ‘single-pixel camera’ to provide continuous real-time video at 10 Hz , simultaneously in the visible and short-wave infrared, using an efficient computer algorithm. We demonstrate our camera for imaging through smoke, through a tinted screen, whilst performing compressive sampling and recovering high-resolution detail by arbitrarily controlling the pixel-binning of the masks. We anticipate real-time single-pixel video cameras to have considerable importance where pixelated sensors are limited, allowing for low-cost, non-visible imaging systems in applications such as night-vision, gas sensing and medical diagnostics.

• Publisher: Nature Publishing Group UK,Nature Publishing Group
• Subject: 639/624/1107/510 / 639/766/400 / 639/766/930/2735 / Algorithms / Arrays / Cameras / Humanities and Social Sciences / Light / multidisciplinary / Noise / Science / Sensors / Smoke / Spatial discrimination