There are interactions in the effects of VDT luminance contrast and screen luminance on operator's visual performance.

VDT的亮度对比度和屏面亮度在对操作者视觉功能的影响中，存在着交互作用。

As to sea image, the variance feature of region of interest and the luminance contrast feature between target and background are used to fusion recognition.

对于海面图像，分别采用感兴趣舰船目标区域的方差值、目标和背景亮度对比度这两个特征对目标进行融合识别。

Development and analysis of phosphor screen, a part of field emission plat panel display, determine the device performance on luminance, resolution and life.

作为场发射平面显示器件的组成部分之一，荧光屏的研制与结果分析决定了该显示器件的亮度、清晰度、分辨率和寿命等性能。

In this paper, the relation of cloudy sky luminance with particle scatter and air mass is discussed by using the results of atmospheric and geometrical optics.

利用大气光学和几何光学的成果，讨论了阴天天空亮度与粒子散射和大气质量的关系，从微观机理上说明了阴天空最大亮度元的存在性，并得到了有趣的结果。

CCD imaging luminance meter of wider range measure is obtained by using CCD with the function of charge cumulation, using methods of charge and digital cumulation.

采用具有电荷累积功能的面阵CCD器件，电荷累积与数字累积相结合的方法，提出了可获得更大范围量程的CCD成像型亮度计系统。