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The surface mounting equipment (SME) is critical and complex in electronic assembly process. The key issue of SME is to realize accurate positioning and high-speed under the influence of parametric uncertainties (e.g., unknown gravitational load) and uncertain nonlinearities (e.g., friction). For achieving this aim, the adaptive robust control (ARC) based on dynamic LuGre model algorithm is proposed...
The camera calibration precision directly affects the computer vision application. A method for improving camera calibration precision is proposed in this paper, which follows in details: Firstly, a new iterative sub-pixel detection approach based on the Forstner operator is proposed. Secondly, instead of print plane, this paper uses LCD (completely flat Liquid Crystal Display) for camera calibration...
Vegetation phenological dynamics is an indicator of plant response to climate regime. Various methodologies are developed to determine the timing of vegetation greenup and senescence using time series of remote sensing data, but most of them are used for forests. This paper presented a simple phenology model to identify wheat (Triticum aestivum L.) greenup onset date from SPOT/VEGETATION data. An...
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