TIME-RESOLVED IMAGE SENSOR FOR DISTANCE MEASUREMENT AND TWO-DIMENSIONAL GRAY SCALE IMAGING

摘要

An image sensor comprises a time-resolved sensor and a processor. The time-resolved sensor outputs a pair of a first signal and a second signal in response to detecting, by at least one pixel, one or more photons reflected from an object corresponding to a light pulse irradiated toward the object. A first ratio of the amplitude of the first signal to the sum of the amplitude of the first signal and the amplitude of the second signal is proportional to flight time of the one or more detected photons. A second ratio of the amplitude of the second signal to the amplitude of the first signal and the amplitude of the second signal is proportional to the flight time of the one or more detected photons. The processor determines a surface reflectance of the object to which the light pulse is reflected based on the pair of the first signal and the second signal.;COPYRIGHT KIPO 2020