This paper examines camera calibration in a general setting and considers a number of factors which can be used to distinguish between diierent calibration procedures. The factors are model complexity, parameter classiication, measure of model t and numerical solution. A number of calibration procedures are examined and classiied by these factors. Finally, some possible improvements to current ...

In order to transfer a calibration model, techniques such as piecewise direct standardization (PDS) or direct standardization (DS) are used. This implies that the same subset of samples must be measured in both situations. However, when a model is transferred from an off-line application to an on-line application, it is not possible to remeasure the same subset of samples. In this paper, howeve...

The usefulness of a hydrologic model is directly related to its application and how well it is calibrated. Calibration is a subjective exercise where model parameters are adjusted to reduce discrepancies between measured data and modeled predictions. Automated calibration can be used to accelerate the model calibration process, minimize modeler bias, and increase the goodness of fit between mea...

background: nowadays the eutrophication of water bodies is enhanced due to discharge of effluents and runoffs. therefore, there is a demand for the management of natural and artificial lakes to prevent or postpone this problem. lakes eutrophication is a complex process. therefore computerized models are very important tools to describe this process. although there are several models for this, b...

This paper describes an automated calibration procedure applied to the GIS-based distributed WetSpa (Water and Energy Transfer between Soil, Plant and Atmosphere) model by incorporating a modelindependent parameter estimator PEST (Parameter ESTimation). This calibration approach is applied to estimate the most sensitive parameters of the model with observed flow hydrographs as the calibration t...

Polarimetric calibration accuracy is a key factor in the quantitative use of polarimetric SAR data as well as the design of future SAR system. This paper presents an approach to determine the maximum acceptable distortion level remaining after polarimetric calibration in Polarimetric SAR Interferometry (Pol-InSAR). PolInSAR distortion model of calibration is reviewed and discussed firstly. Then...

With the rapid development of three-dimensional (3D) modelling, camera calibration is paid more and more attention. In this article, we analyse the influence factors in the calibration: the camera and lens, the shape of control points, photography model and the scale between calibration object and measurement. Appropriate model can get the right result quickly, and the position of the model in ...

In this paper, we introduce a composite likelihood-based approach to perform computer model calibration with high-dimensional spatial data. While composite likelihood has been studied extensively in the context of spatial statistics, computer model calibration using composite likelihood poses several new challenges. We propose a computationally efficient approach for Bayesian computer model cal...

Does the spacing of time intervals used for model input data have an impact on the model’s subsequent calibration and so projections of land use change and urban growth? This study evaluated the performance of the SLEUTH urban growth and land use change model through two independent model calibrations with different temporal extents (1972 to 2006 vs. 2000 to 2006) for the historical Italian cit...