Efficient Real-Time Control of Matrix Headlights

This contribution generalizes our real-time Super Sampling Control (SSC) method for pixel light intensities of automotive matrix headlights to a general MapReduce method. The redesigned control method is now a generalization with extended capabilities of well-known control methods, which can be used to find an efficient control stagey for a specific matrix headlight and target illumination. The process of finding the objectively best control parameters is shown on real matrix headlights with 84 and 16,384 pixels. For a homogeneous target illumination, the SSC method achieves for the 84 pixels headlamp an up to 8.84 % lower Root Mean Squared Error (RMSE) of the intensity distribution than a rectangular lighting approximation without the novel intensity mapping and a 95.85 % lower RMSE for the 16,384 pixels headlamp.