景深效果能够增强计算机生成图像的真实感，因此关于这类效果的绘制已成为计算机图形学中的重要研究方向。
The depth-of-field effect can improve the realistic sense of a computer-generated image, and thus rendering of this effect has become one of the important research topics in computer graphics.
由于雾天图像的退化是与图像的场景深度密切相关，因此，常见的图像处理方法并不能取得很好的增强和恢复效果。
As the foggy image degrading is closely related to the scene depth, common image processing methods cannot achieve perfect enhancing and restoring effect.
由于雾天图像的退化是与图像的场景深度密切相关，因此，常见的图像处理方法并不能取得很好的增强和恢复效果。
As the foggy image degrading is closely related to the scene depth, common image processing methods cannot achieve perfect enhancing and restoring effect.
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