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This paper proposes a way to track persons by making use of multiple non-overlapping cameras. Tracking persons on multiple non-overlapping cameras enables data communication among cameras through the network connection between a camera and a computer, while at the same time transferring human feature data captured by a camera to another camera that is connected via the network. To track persons with a camera and send the tracking data to another camera, the proposed system uses a hierarchical human model that comprises a head, a torso, and legs. The feature data of the person being modeled are transferred to the server, after which the server sends the feature data of the human model to the cameras connected over the network. This enables a camera that captures a person's movement entering its vision to keep tracking the recognized person with the use of the feature data transferred from the server., {"references":["S. Park and J. K. Aggarwa, \"Segmentation and tracking of interacting\nhuman body parts under occlusion and shadowing,\" in Proc. of\nInternational workshop on motion and video computing, pp.105-111,\n2002.","Javed, Z. Rasheed, O. Alatas and M. Shah, \"KNIGHTM: A real-time\nsurveillance system for multiple overlapping and non-overlapping\ncameras,\" in Proc. of the International conference on multimedia and\nexpo, 2003.","F.M.Porikli and A. Divakaran, \"Multi-camera calibration, object tracking\nand query generation\", in Proc. of the International conference on\nmultimedia and expo, pp. 653-656, 2003.","Y. Matsushita, K. Nishino, K. Ikeuchi and M. Sakauchi, \"Illumination\nnormalization with time-dependent intrinsic images for video\nsurveillance,\" IEEE trans. on PAMI, 26(10):1336-1347, 2004.","S. Khan and M. Shah, \"Consistent labeling of tracked objects in multiple\ncameras with overlapping Fields of View,\" IEEE trans. on PAMI,\n25(10):1355-1360, 2003.","K. M. Lee and Y. M. Lee, \"Tracking multi -person robust to illumination\nchanges and occlusions,\" in Proc. of International of conference on\nartificial reality and telexistence, pp. 429-432, 2004."]}