An active camera system, comprising: a light source configured to emit light as a series of one or more light pulses; a scanner configured to direct the one or more light pulses towards a remote target at a particular position in a two-dimensional field of regard; and a receiver configured to detect one or more light pulses scattered by the remote target, the receiver including: a detector element that detects a scattered light pulse at the particular position in the two-dimensional field of regard, a plurality of amplitude detectors coupled to the detector element, wherein each of the plurality of amplitude detectors includes a comparator and a time-to-digital converter coupled to the comparator to produce a representation of a time delay between when one of the light pulses was emitted and the scattered light pulse was received, a range determination unit that determines, based on the timing of the receipt of the scattered light pulse, a distance to the target at the particular position in the field of regard, and an intensity measurement unit that (i) determines an intensity of the scattered light pulse based on the time delays determined by three or more of the plurality of amplitude detectors, and (ii) determines, from the intensity and the determined distance to the target, an indication of the reflectivity of the target at the particular position in the field of regard. a light source configured to emit light as a series of one or more light pulses; a scanner configured to direct the one or more light pulses towards a remote target at a particular position in a two-dimensional field of regard; and a receiver configured to detect one or more light pulses scattered by the remote target, the receiver including: a detector element that detects a scattered light pulse at the particular position in the two-dimensional field of regard, a plurality of amplitude detectors coupled to the detector element, wherein each of the plurality of amplitude detectors includes a comparator and a time-to-digital converter coupled to the comparator to produce a representation of a time delay between when one of the light pulses was emitted and the scattered light pulse was received, a range determination unit that determines, based on the timing of the receipt of the scattered light pulse, a distance to the target at the particular position in the field of regard, and an intensity measurement unit that (i) determines an intensity of the scattered light pulse based on the time delays determined by three or more of the plurality of amplitude detectors, and (ii) determines, from the intensity and the determined distance to the target, an indication of the reflectivity of the target at the particular position in the field of regard. a detector element that detects a scattered light pulse at the particular position in the two-dimensional field of regard, a plurality of amplitude detectors coupled to the detector element, wherein each of the plurality of amplitude detectors includes a comparator and a time-to-digital converter coupled to the comparator to produce a representation of a time delay between when one of the light pulses was emitted and the scattered light pulse was received, a range determination unit that determines, based on the timing of the receipt of the scattered light pulse, a distance to the target at the particular position in the field of regard, and an intensity measurement unit that (i) determines an intensity of the scattered light pulse based on the time delays determined by three or more of the plurality of amplitude detectors, and (ii) determines, from the intensity and the determined distance to the target, an indication of the reflectivity of the target at the particular position in the field of regard.