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Three-dimension reconstruction based on images is one of important researches in computer vision. The reconstruction of single uncalibrated image of revolution surface is studied. The algorithm introduced by Colombo etc, which obtains three-dimension reconstruction and texture acquisition at the same time, is improved and a new approach of reconstruction is proposed. Firstly, plane transmission is used to compute the equation of the ellipse with respect to the point of image apparent contour line. Secondly, the construction of the object is recovered by computing the location and size of each cross section of the revolution surface according to the property of quadratic curve. The method of the reconstruction process is simple and keeps the overall structure of the revolution surface more correct. Simulation and real image experiments demonstrate the correctness and validity of the algorithm. [ABSTRACT FROM AUTHOR]

Numerical marine environment forecast has five characteristics which are multi-numerical models, multi-coupling processes, multi-result, more throughput and multi-user. Based on the above characteristics, the construction of the supporting platform of the marine environment forecast is proposed. An online coupler (HYCPL) for multi-coupling processes, a model library (HYLIB) for multinumerical models, multi-parameterization schemes and multi-statistical methods, a test and evaluation tool (HYET) for multi-result, a parallel access and storage tool (HYI/O) for more throughput and a one-click installation package (HY1KEY) for multi-user running environment are designed. All of these provide an effective and suitable supporting platform for numerical environment forecast system. [ABSTRACT FROM AUTHOR]