A University of Wisconsin-Madison spinoff, Ubicept, is pushing a bold vision: replace today’s CMOS pixel sensors with single-photon avalanche diode (SPAD) sensors capable of sensing and processing individual photons. Current cameras average light over many photons and lose nuance in low light or fast motion. SPADs, by contrast, promise infinite dynamic range, resistance to saturation, and near-blur free imaging under challenging conditions, according to University of Wisconsin-Madison website.
The hurdle is data. SPAD sensors produce massive data streams, hundreds of gigabytes per second, that current devices cannot handle efficiently. Ubicept’s edge lies in computational imaging: they combine novel algorithms and hardware to process, compress, and reconstruct useful imagery in real time. Their platform, called Flexible Light Acquisition and Representation Engine (FLARE), reduces raw photon data into compact representations while preserving detail for image reconstruction.
Ubicept was founded by UW-Madison and MIT researchers. Andreas Velten from UW leads the effort with co-founders including Sebastian Bauer and Tristan Swedish. The company draws on expertise from electrical engineering, computational imaging, and vision science. To date, they employ a small team in Madison and Boston, many of whom are UW alumni. The startup has also received funding and a $1 million award in the TitletownTech Startup competition.
Velten and his team emphasize that their approach tightly couples sensor design and algorithm development, an integration often missing in companies that treat imaging hardware and vision software separately. By doing so, Ubicept hopes to unlock the full potential of SPADs in consumer, automotive, and scientific imaging.
Looking ahead, Ubicept sees SPADs potentially replacing most cameras in the next decade. Because SPADs can be fabricated in existing semiconductor facilities alongside CMOS, mass adoption may not require radically new factories. The company is positioning itself at the intersection of hardware innovation and vision computing to make the next generation of cameras smarter at the photon level.