【摘要】 利用VTK对雷达图像数据进行三维可视化研究,其中研究了表面绘制和体绘制两种绘制技术:表面绘制用移动立方体法实现,体绘制用合成光线投影算法实现。实验高效快捷地显示了雷达二维图像,实现了雷达回波数据的空间整体三维重建显示和x,y,z三维任意切面的雷达回波强度显示,并且可以任意方向切割、旋转、放大与平移三维图像。VTK应用于雷达图像三维可视化更为直观和全面的展现了空间回波的分布状况。更多还原

【Abstract】 To study the radar image data′s three dimensional visualization,there are two types of rendering techniques:surface rendering and volume rendering.Surface rendering uses marching cubes algorithm,volume rendering uses composited ray-casting algorithm.It efficiently and easily displays the two-dimensional radar image,realizes three dimensional reconstruction of radar reflectivity,achieves arbitrary x,y,z three-dimensional cross-section of the radar echo intensity display,also it can arbitrary-orienting clip,rotate,zoom and translate the three dimensional image.Applying VTK in the three dimensional visualization of radar image comprehensively displays spatial distribution of the radar echo.更多还原