Patent ID: 11947046
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: nan (nan)
Classification: CPC nan | IPC G  H

Claim 16:
17. A method to generate a greyscale image of an object, the method comprising:
projecting, from a light source, a sequence of light pulses toward a surface of an object;
detecting one or more photons corresponding to a light pulse that has been reflected from the surface of the object;
generating by a time-resolving sensor a pair of a first signal and a second signal based on detecting the one or more photons, the time-resolving sensor being synchronized with the light source, a first ratio of a magnitude of the first signal to a sum of the magnitude of the first signal and a magnitude of the second signal being proportional to a time of flight of the one or more detected photons, and a second ratio of the magnitude of the second signal to the sum of the magnitude of the first signal and the magnitude of the second signal being proportional to the time of flight of the one or more detected photons;
determining, by a processor, a distance to the object based on the first signal and the second signal; and
determining, by the processor, a surface reflectance of the object where the one or more photons have has been reflected based on the first signal and the second signal.