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This paper designs and implements an intelligent projection system which automatically calibrates projected distorted images on an arbitrary surface. It consists of a projector, computer, camera and tilt sensor. Binary-coded structured light is projected to recognize the geometric shape of a projected surface. Tilt sensor determines a appropriate visual angle and an effective projected area. Discrete...
The uncertainty of radio propagation results in large errors in positioning systems based on the received signal strength (RSS). Especially in an indoor environment, the RSS distribution map, so called radio map, has a very complicated form due to numerous site-specific parameters. Therefore, modelling the radio map is a critical task for RSS based positioning systems. Researchers usually obtain an...
This paper focuses on a new approach for the calibration of IMU misalignment angles. Firstly the rigorous mathematic model of IMU misalignment describing the relationship among IMU output angles, misalignments and exterior orientation angular elements is discussed, then one-step and two-step these two fundamental calibration methods are introduced. According to the idea of two-step calibration a rigorous...
Relating the microscopic parameters to the macroscopic characteristics of traffic flow by mechanism deduction can make the calibration of the microscopic parameters conveniently and efficiently. The corresponding researches of the steady state flow have been reported in the literature. However, as the steady states are easy to be broken by disturbances and other factors, the actual traffic flow is...
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