Illumination adaptation with rapid-response color sensors

Smart lighting solutions based on imaging sensors such as webcams or time-of-flight sensors suffer from rising privacy concerns. In this work, we use low-cost non-imaging color sensors to measure local luminous flux of different colors in an indoor space. These sensors have much higher data acquisition rate and are much cheaper than many off-the-shelf commercial products. We have developed several applications with these sensors, including illumination feedback control and occupancy-driven lighting.