Edgar Matthew P, Gibson Graham M, Bowman Richard W, Sun Baoqing, Radwell Neal, Mitchell Kevin J, Welsh Stephen S, Padgett Miles J
SUPA, School of Physics and Astronomy, University of Glasgow, Glasgow, G12 8QQ, UK.
Department of Physics, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, UK.
Sci Rep. 2015 May 22;5:10669. doi: 10.1038/srep10669.
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.
传统相机依靠像素化传感器来提供空间分辨率。一种替代方法是用编码有一系列二进制图案的像素化透射掩膜取代传感器。结合通过单像素探测器测量的图案序列知识和相关的滤波强度，通过数据反演可以推导出图像。在这项工作中，我们扩展了“单像素相机”的概念，使用一种高效的计算机算法，在可见光和短波红外波段同时以10赫兹的频率提供连续实时视频。我们展示了我们的相机，它能够透过烟雾、有色屏幕进行成像，同时执行压缩采样，并通过任意控制掩膜的像素合并来恢复高分辨率细节。我们预计，在像素化传感器受限的情况下，实时单像素视频相机将具有相当重要的意义，这将为夜视、气体传感和医学诊断等应用带来低成本、不可见光成像系统。
