- Many novel multimedia applications such as virtual immersive environments use multiple sensors and actuators. We present in this paper a novel approach for position calibration of visual sensors and actuators, i.e. cameras and displays, in a distributed network of general purpose computing devices. The proposed approach is very suitable for the calibration of mobile setups since (a) synchronization of the setup is not required, (b) it works fully automatic, (c) only weak restrictions are imposed on the positioning of the cameras and displays, and (d) no upper limit on the number of cameras and displays to calibrated is imposed. Corresponding points across different camera images are established automatically and found with subpixel accuracy. Cameras do not have to share one common view, only a reasonable overlap between camera subgroups is necessary. The method has been sucessfully tested in numerous multicamera environments with a varying number of cameras. It has proven itself toMany novel multimedia applications such as virtual immersive environments use multiple sensors and actuators. We present in this paper a novel approach for position calibration of visual sensors and actuators, i.e. cameras and displays, in a distributed network of general purpose computing devices. The proposed approach is very suitable for the calibration of mobile setups since (a) synchronization of the setup is not required, (b) it works fully automatic, (c) only weak restrictions are imposed on the positioning of the cameras and displays, and (d) no upper limit on the number of cameras and displays to calibrated is imposed. Corresponding points across different camera images are established automatically and found with subpixel accuracy. Cameras do not have to share one common view, only a reasonable overlap between camera subgroups is necessary. The method has been sucessfully tested in numerous multicamera environments with a varying number of cameras. It has proven itself to work extremely accurate. Performance results are reported.…
