2013/01/08 by Baoqing Sun, M. Edgar, Sun, Baoqing +11
Engineering · Physics and Astronomy · #Advanced Optical Imaging Technologies #Computational Physics (physics.comp-ph) #FOS: Physical sciences #Optics (physics.optics) #Orbital Angular Momentum in Optics #Quantum Physics (quant-ph) #Random lasers and scattering media
paper · pdf · doi:10.48550/arxiv.1301.1595
openalex publication_date 2013/01/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Computational ghost imaging retrieves the spatial information of a scene using a single pixel detector. By projecting a series of known random patterns and measuring the back reflected intensity for each one, it is possible to reconstruct a 2D image of the scene. In this work we overcome previous limitations of computational ghost imaging and capture the 3D spatial form of an object by using several single pixel detectors in different locations. From each detector we derive a 2D image of the object that appears to be illuminated from a different direction, using only a single digital projector as illumination. Comparing the shading of the images allows the surface gradient and hence the 3D form of the object to be reconstructed. We compare our result to that obtained from a stereo- photogrammetric system utilizing multiple high resolution cameras. Our low cost approach is compatible with consumer applications and can readily be extended to non-visible wavebands.