| 摘要 |
The present invention relates generally to methods and devices of generating an electrical representation of at least one object in a scene in the real word. The method for producing a representation of a 3D scene by means of a sensor array, comprises:
€¢ illuminating (62) the scene by means of predetermined series of ultrashort power light pulses;
€¢ collecting (63) light reflected or scattered by the scene to at least a single photon avalanche diode (SPAD) sensor array comprising at least one SPAD detector cell, on the basis of the time-related pulses from said predetermined series of ultrashort power light pulses such that a reference time is detected first and then the time of flight of each event detected at each SPAD detector cell is counted from the detected reference time, the said reference time being unique for at least a train of a predetermined series of ultrashort power light pulses;
€¢ generating 1D, 2D and/or 3D representation of the illuminated scene by processing the electrical signals generated by each SPAD detector cell on the basis of the counted time of flight of the events;
€¢ such that said representation allows to detect movements in the scene and/or to achieve high resolution 1D, 2D and/or 3D images. |
