Towards General‐Purpose Passive Imaging with Single‐Photon Sensors
17:10 - 17:30
Atul Ingle, Andreas Velten and Mohit Gupta Single-photon avalanche diodes (SPADs) are an emerging sensor technology and are becoming increasingly popular in low light and active imaging applications. We propose passive free-running SPAD (PF-SPAD) that, unlike conventional active imaging applications, uses SPADs in ambient light to capture 2D intensity images. Surprisingly, a PF-SPAD can operate at much higher flux levels than previously thought possible and provide over 2 orders of magnitude higher dynamic range than conventional image sensors. Thus, SPADs have the potential to be used as general-purpose passive image sensors in a variety of consumer and scientific applications that deal with extreme dynamic range.
