基于透镜成像模型推导出模糊函数σ与物距及透镜焦距的关系.采用对深度三维图像自适应分层滤波方法,引入差异度函数,按差异度函数把深度图像分解成K个Z方向上不相交的子图像,通过对子图像的滤波合成,降低算法的复杂度,并使滤波后的误差控制在给定范围内,引入ALPHA值、按层合成等手段解决滤波后的遮挡及边界问题.为计算机渲染(RENDER)算法提供了一种新的后期处理途径“,”The relationship between fuzzy function σ and the distance from object to lens and focal length was provided by using the lens model. A new adaptive stratified filtering method for 3 D depth image was developed. The concept of the difference function was proposed and the depth image was resolved into several non intersection sub level images along z axis. The algorithm complexity was reduced and the postfiltration error was controlled within a given range by filtering and composing sub level images. The...