亮度对比

计算机显示终端CRT亮度对比度对视觉功能的影响

The influence of luminance contrast of VDT on 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。

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

本文通过进行人眼阈限亮度对比实验，确定了可见度计算模型中的重要系数K。

This paper develops the threshold brightness contrast experiments of human eyes , and determines the important factor K in the visibility calculation models .

开展了人眼阈限亮度对比实验，利用实验数据建议了适宜于观察者的可见度计算模型中的K值；

Conducts experiments on threshold brightness contrast of the human eyes , suggests the K value in the visibility calculation suitable for the experimental data ;

结果第一组单纯亮度对比刺激条件下，色觉异常组和正常组比较，P1波的潜伏期和振幅均无显著性差异（P>005）。

Results In simple luminosity contrast pattern ( black-white ) there was pattern no significant difference in latency and amplitude between trial group and normal group ( P > 0.05 ) .

在黑白光栅亮度对比度为80%，速度为20.2mm／s时，颜色视觉运动觉的异常率（69.2%）比色觉异常率（43.6%）及ERGOPs异常率（48.9%）要高。

The abnormal ratio of color motion perception ( 69.2 % ) was higher than that of color vision ( 43.6 % ) and ERG OPs ( 48.9 % ) when the luminance contrast of black / white grating was 80 % and the velocity was 20.2mm/s .

不同背景照明光下正确辨认颜色灯光信号的亮度对比阈

Contrast Threshold in Identification of Coloured Light Signals under Different Illuminating Lights

基于同时亮度对比现象的亮度感知用户模型

Brightness perceptive user model based on simultaneous brightness contrast phenomena

在亮度对比和颜色对比下立体视知觉的定量研究

Quantitative studys of random-dot induced stereo vision under luminance contrast and color contrast

目的选出轻、中度缺氧条件下最佳亮度对比度值。

Objective To draw the most suitable luminance contrast during mild and moderate hypoxia .

错觉图形组成成分间的亮度对比和颜色对比对错觉程度的影响

Effects of luminance contrast and color contrast between components of illusory figure on the illusion magnitude

早期的版本没有这些先进的镀膜并且没有这样的亮度对比度。

Earlier versions did not have these advanced coatings and are not quite as bright and contrasty .

图象的分辨率可达300线以上，亮度对比度达15：1。

The picture resolution is over 300 lines , and the ratio of contrast is about 15:1 .

轻、中度缺氧应激时亮度对比度对脑认知功能的影响

Effect of luminance contrast on brain event related potentials and reaction time during mild and moderate hypoxia

轻、中度缺氧条件下亮度对比度及声强对脑认知功能影响的实验研究

Effects of different luminance contrasts and sound intensities on brain perceptual function during exposure to mild and moderate hypoxia

还介绍了饱和度调节和亮度对比度变换在实时条件下的可行方案。

In addition , a saturation enhancing method and a contrast adjusting method for brightness in real time processing is introduced too .

本研究的目的是考察辨认颜色灯光信号的亮度对比阈与背景亮度的关系。

Two experiments were carried out to investigate the relation between back - ground brightness and contrast threshold in identifying coloured light signals .

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。

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 .

并综合考虑人眼的目标发现能力、目标的亮度对比度、观察等级和探测概率的要求，计算出面源目标的作用距离。

The operating range for extended target is calculated by considering of the target finding ability of eyes , contrast of target luminance , discrimination level and detection probability .

在检测军用伪装涂料颜色时，经常将亮度对比和色差容限这两个检测指标独立使用，而忽略了它们之间的关联性。

Based on the relation of color space of XYZ and Lab , this article studies the close relationship between brightness contrast and color difference tolerance of camouflage paints .

测试结果表明：与通常的错觉效应相比，当错觉图形组成成分间存在亮度对比或颜色对比（等亮度）时，受试者的错觉程度明显降低；

The results showed that , compared with normal illusory magnitude , the illusory magni-tude of the subjects decreased obviously when LC or ECC existed between the compo-nents of the illusory figures .

进一步考虑了有限透镜孔径对成像面上成像质量的影响，模拟结果表明：成像面上亮度对比度分布不均匀；且随着透镜孔径大小与厚度的比值减小，像的对比度将会增加。

The finite aperture effect of these lenses on the imaging performance is also analyzed and the numerical simulation shows the contrast of the image distributes non uniformly and it will increase evidently with the ratio of thickness to aperture decreasing .

实验表明，本文提出的彩色融合算法能够综合红外与微光特征信息，且使图像具有最佳的亮度对比和细节信息，图像色彩更易于人眼观察。

The experimental results show that the proposed algorithm can integrate the features of infrared image and low-light-level image well . And this method can obtain the perfect contrast and detail information and the color of the fusion image is comfortable for human eyes .

从一起船舶碰撞事故的教训出发，分别利用亮度对比度、可见度水平的计算公式和格拉斯曼的颜色混合定律分析了亮度对比度和颜色对比度对船舶号灯可识别性的影响；

According to the lesson of an accident of ships ' collision , the influence of brightness contrast and color contrast on the identifiability of ship lights has been analyzed using the evaluating formula of brightness contrast , visibility level and H. Grassmann color mixing law ;

提出了一种实现LED大屏幕显示系统的亮度与对比度调节技术，介绍了该技术的算法与实现电路。

The technology realizing the brightness and contrast adjustment of the large-scale LED display system and its algorithm and circuits are introduced .

一种提高PDP亮度和对比度的新驱动波形

A New Driving Waveform of Improving Brightness and Contrast of PDP

该系统可以测量液晶电视的可视角、亮度、对比度、亮度均匀性、白平衡（GAMMA曲线）等光学参数。

The system can measure view angle , brightness , contrast , uniformity of brightness , white balance and GAMMA curve .

作者通过对进口、国产5种性能各异的CT胶片，在多幅相机上采用不同亮度和对比度进行试验后，选择出合适的感光条件，使CT图像质量能达到诊断要求。

In this study , the authers proposed the optimal radiographic parameters for 5 brands of CT films both imported and local , by adjusting brightness and contrast of multiformat cam-era to yield good diagnostic images .

为了降低功耗，延长电池的寿命，反射型LCD必须在反射亮度、对比度和可视度方面予以实质性改进。

In order to reduce the power consumption and increase the life of battery , reflective LCDs must be improved substantially in reflective brightness , contract and visibility .

从理论上研究了图像在发生亮度和对比度变化、镜像或转置变化时，其DCT变换后的矩阵元素之间具有相似性。

The similarity of the element of matrix after DCT is studied by theory with changing of brightness or contrast , and with transformation of mirroring or transposing .