Figure 3. Single-pixel imaging in presence of ambient light.

Series of measurements using balanced detection (a), and a single sensor (b). For each experiment, both measurements with the halogen lamp turned on and off are shown. Each column represents a different power level of the source illuminating the object, as the power of the halogen lamp is either fixed (lamp on) or zero (lamp off). In order to ease visualization, all images have been normalized between 0 and 255.