A method for controlling a calendering system having a first roll and a second roll is disclosed. The method further includes rasterizing a model of the target into a synthesized depth image having a rasterized pose and adjusting the rasterized pose of the model into a model-fitting pose based, at least in part, on differences between the observed depth image and the synthesized depth image. The second or the first node transmits a data frame toward the first or the second address translation device, which binds an IP address and a port number of the first or the second node included in the data frame respectively to those of the second or the first address translation device for a direct communication between the nodes.