A multi-depth camera capture system for point cloud library

The area of Human Computer Interaction (HCI) benefits largely from the release of low cost depth cameras such as Microsoft's KINECT or ASUS' XTION Pro. Depth, RGB or infrared image data are provided via a USB-2.0-connection. However, due to limited USB data rate, HCI applications usually cannot use more than two cameras per PC. To overcome this problem we propose a system which uses a client-server-based capture system. Servers send their data to a client, where it can be further processed. The proposed system based on the Point Cloud Library (PCL), where point clouds are computed and merged into a global registered point cloud. This application can be used in conjunction with an infrared tracking system to evaluate human pose or hand pose estimation.