EXTENDED RANGE GATED TIME OF FLIGHT CAMERA

摘要

A gated time of flight (GT-TOF) range camera that transmits a plurality of light pulses to illuminate features in a scene and gates ON a photosensor in the camera for one multi-exposure gate having a plurality of exposure periods following each of the plurality of light pulses to register amounts of light reflected by features in the scene from the light pulses and uses the registered amounts of light to determine distances to the features.

主权项

1. A gated time of flight (GT-TOF) camera operable to determine distances to features in a scene, the GT-TOF camera comprising:
a light source configured to transmit at least one train of light pulses to illuminate the scene; a photosensor comprising pixels configured to register amounts of light reflected from transmitted light pulses in the at least one light pulse train by features in the scene imaged on the pixels; a controller configured to gate ON the photosensor following each of a first plurality of transmitted light pulses in the at least one light pulse train for a first multi-exposure gate having a plurality of exposure periods and a hiatus between consecutive exposure periods to register first amounts of light reflected by features in the scene from the first plurality of light pulses.