Illumination Method in Augmente d Reality Based on Dynamic Light Map

To achieve the correct lighting in Augmented Reality(AR) in time,a fast dynamic Light Map-based approach is presented. The pixel intensity of the calibration object in different video images is collected. The gain and the bias of the camera are computed. The environmental light condition is used which is recorded by the dynamic Light Map to augment the mixed scenes. If the illumination changes,new frames can update the Light Map immediately. Experimental results indicate that the approach can handle dynamic real-world illuminations and the updating speed is fast enough for real-time applications.