{"id":52,"date":"2019-01-20T12:20:24","date_gmt":"2019-01-20T17:20:24","guid":{"rendered":"https:\/\/sites.bu.edu\/goyal\/?page_id=52"},"modified":"2019-01-22T13:21:41","modified_gmt":"2019-01-22T18:21:41","slug":"photon-efficient-active-imaging","status":"publish","type":"page","link":"https:\/\/sites.bu.edu\/goyal\/current-research-thrusts\/photon-efficient-active-imaging\/","title":{"rendered":"Photon-Efficient Active Imaging"},"content":{"rendered":"

Conventional photography collects tens of thousands of photons at each camera pixel. However, that number of photons isn\u2019t required to form accurate images.<\/span><\/p>\n

Using time-correlated single-photon counting, our group and collaborators at MIT demonstrated that forming accurate depth and reflectivity images is possible using as little as one photon detection per scene pixel, increasing the photon efficiency of image formation by several orders of magnitude.<\/span><\/p>\n

Such methods can enable long-distance range measurements, fast acquisition for real time systems like autonomous vehicles, or even low-dose measurements for biological applications. <\/span><\/p>\n

We have continued to expand the capabilities of imaging with very few photons, including exploring scenes with multiple depths, increasing robustness to high ambient light levels, improving depth resolution for systems with coarse time quantization, and compensating for dead times in single-photon detectors.<\/span><\/p>\n

Selected Publications<\/em><\/p>\n

    \n
  1. Improving Lidar Depth Resolution With Dither<\/b><\/a>\n