Le Francois Emma, Griffiths Alexander D, McKendry Jonathan J D, Chen Haochang, Li David Day-Uei, Henderson Robert K, Herrnsdorf Johannes, Dawson Martin D, Strain Michael J
Opt Lett. 2021 Aug 1;46(15):3612-3615. doi: 10.1364/OL.424000.
Time of flight and photometric stereo are two three-dimensional (3D) imaging techniques with complementary properties, where the former can achieve depth accuracy in discontinuous scenes, and the latter can reconstruct surfaces of objects with fine depth details and high spatial resolution. In this work, we demonstrate the surface reconstruction of complex 3D fields with discontinuity between objects by combining the two imaging methods. Using commercial LEDs, a single-photon avalanche diode camera, and a mobile phone device, high resolution of surface reconstruction is achieved with a RMS error of 6% for an object auto-selected from a scene imaged at a distance of 50 cm.
飞行时间法和光度立体法是两种具有互补特性的三维（3D）成像技术，前者可在不连续场景中实现深度精度，后者能够以精细的深度细节和高空间分辨率重建物体表面。在这项工作中，我们通过结合这两种成像方法，展示了对物体间存在不连续性的复杂3D场景的表面重建。使用商用发光二极管、单光子雪崩二极管相机和移动电话设备，从距离50厘米处成像的场景中自动选择的一个物体实现了高分辨率的表面重建，均方根误差为6%。
