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Kinect and SL/Opensim Animations: An Update
Following the previous article outlining my experiments with using the Kinect for creating animation files for Second Life and Opensim, I thought an update might be in order to summarise some of the lessons learnt, both by myself and other experimenters. Since the last article on the 24th February, two of the key software applications used in the workflow, Brekel Kinect 3D Scanner, and Bvhacker have had further development. So what's new in the latest releases? Brekel Kinect 3D Scanner Two further releases have been issued since the last article:Calibrating the depth and color camera Here is a preliminary semi-automatic way to calibrate the Kinect depth sensor and the rgb output to enable a mapping between them. You can see some results there: It is basically a standard stereo calibration technique ( http://opencv.willowgarage.com/documentation/cpp/camera_calibration_and_3d_reconstruction.html ), the main difficulty comes from the depth image that cannot detect patterns on a flat surface. Thus, the pattern has to be created using depth difference. Here I used a rectangular peace of carton cut around a chessboard printed on an A3 sheet of paper.

