将该偏振方向旋转器用作LCD或LCOS投影仪中的偏振转换器，将大大提高系统的光能利用率以及投影系统的对比度。
This kind of rotator can be used in LCD or LCOS, greatly improving the light efficiency of the system and the contrast of projection.
然后通过对基元特征进行加权投影统计，得到图像的方向性、对比度等纹理特征，这些特征可以更好的适应人类视觉特性。
The texture features such as direction and contrast of the image can be obtained from weighted projection statistics of primitive feature, which are more matched with human vision.
采取正交实验手段，全面分析了噪声、条纹对比度和密度对条纹方向及间距测量精度的影响。
By means of orthogonal experiment, the effects of noise, visibility and fringe density on the measuring accuracy of fringe direction and space are analysed in detail.
通过分析结合模拟结果，认为减小屏表面的相关长度，在扫描方向压窄激光光斑可以减小该系统中的散斑对比度。
The theoretical results show that a smaller correlation length of screen surface and the narrowing of laser beam in scanning direction can reduce speckle contrast for this system.
通过分析结合模拟结果，认为减小屏表面的相关长度，在扫描方向压窄激光光斑可以减小该系统中的散斑对比度。
The theoretical results show that a smaller correlation length of screen surface and the narrowing of laser beam in scanning direction can reduce speckle contrast for this system.
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