Phys.org June 18, 2024 Existing methods for single-view 3D reconstruction with Neural radiance fields (NeRF) rely on either data prior to hallucinate views of occluded regions which may not be physically accurate, or shadows observed by RGB cameras which are difficult to detect in ambient light and low albedo backgrounds. A team of researchers in the US (MIT, industry) proposed using time-of-flight data captured by a single-photon avalanche diode to overcome these limitations models two-bounce optical paths with NeRF using lidar transient data for supervision. By leveraging the advantages of both NeRF and two-bounce light measured by lidar they reconstructed […]
Tag Archives: Single-photon lidar
Airborne single-photon lidar system achieves high-resolution 3D imaging
Science Daily April 24, 2024 Researchers in China designed and demonstrated an airborne single-photon LiDAR towards the compact, small-sized, and low-power payload with an optical aperture of 47 mm and capable of sub-pixel scanning to enhance image resolution. They validated the super-resolution ability in the ground experiment and high-resolution 3D imaging in the airborne experiment. Photon-efficient computational algorithms and high-quality single-photon avalanche diode arrays minimized power use making it possible to construct images from noisy data even under challenging conditions of two signal photons per pixel. They demonstrated 3D imaging during daytime and showed the capability to reveal the detailed […]