Systems And Methods For Active Depth Imager With Background Subtract

A method for operating an active depth imaging system comprising:

• a plurality of exposure cycles, each exposure cycle comprising:
• for a first time period, configuring each of a first and second imager of the active depth imaging system to capture illuminator-on image data representing an imaged scene and light emitted by an illuminator;
• for a second time period, configuring each of the first and second imager to not accumulate a charge;
• for a third time period, configuring each of the first and second imager to capture illuminator-off image data representing the imaged scene without the light;
• for a fourth time period, configuring each of the first and second imager to not accumulate a charge;
• accumulating, for each of the respective first and second imagers, the illuminator-on image data captured in the plurality of exposure cycles and accumulating, for each of the respective first and second imagers, the illuminator-off image data capture in the plurality of exposure cycles;
• subtracting, for each of the respective first and second imagers, the accumulated illuminator-off image data from the accumulated illuminator-on image data to identify the light emitted by the illuminator within the scene;
• and,
• identifying depth information of an object within the imaged scene at which the light is incident on.