对比度

提出了一种基于CCD摄像头的自动立体显示器立体对比度和视区检测方法。

A method of inspecting stereo contrast ratio and view zones of autostereoscopic displays using CCD cams is proposed .

提高CRT显示器对比度的方法

Methods Increasing Contrast Ratio of CRT Display

用此按钮调节图像明暗的对比度。

Use this button to adjust the contrast .

检测器响应和投影取样对CT重建图象对比度的影响

Effects of Detector Response and Projection Sampling on the Constrast of CT Reconstructed Images

其中黄斑、视神经纤维层的对比度显著降低（P＜0.01）。

The contrast in macula fovea and optic nerve fiber layer decreased significantly ( P < 0.0l ) .

Y细胞比X细胞表现出更大的对比度增益的改变从而表现出更强的对比度适应。

Y cells express stronger contrast adaptation than X cells for contrast gain change .

基于Snake模型的低对比度噪声心脏MRI图像分割

Low Contrast Noisy Cardiac MRI Image Segmentation Based on Snake Model

数字化的X射线图像存在噪声且对比度差，给缺陷识别带来一定难度。

The noise and low contrast of the digitized X ray image made it difficult to recognize defect .

提出了一种基于Snake模型的低对比度、噪声心脏MRI图像分割算法。

A segmentation algorithm of low contrast noisy cardiac MRI based on Snake model is proposed .

而在对比度检测阈值提高方面，X和Y细胞没有显著的差异。

However , there was no significant difference between X and Y cells for the increase of contrast detection threshold .

另外一种对比度产生的问题是色差（chromaticaberration）【5】。

Another problematic contrast effect is chromatic aberration [ 5 ] .

使用Windows系统的API函数和VB编程环境，编制了调节图形对比度的VB程序。

With the Windows API functions and VB environment , a VB program to adjust image contrast is edited .

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

因此，在测量LCD的对比度和视角范围时，有必要注明相邻象素的选通状态。

It is necessary that the activated state of adjacent pixels be specified in the measuring of LCDs .

结果应用SENSE成像当缩减因子为2.0时，腹部每个序列扫描时间缩短约43%～50%，而图像的对比度不变。

Results After applying SENSE technique with reduction factor 2.0 , the scan time of each conventional sequence in abdominal imaging decreased 43-50 percentage of the counterparts without SENSE .

最后，利用现有CCD对比度调制传递函数测量装置测量了线列光纤传像束的对比度调制传递函数。

The last , the CTF of the line-array fiber-optic image slicer is measured with the microscope objective projection CCD CTF measure equipment .

多层螺旋CT轴位扫描图像与MPR图像空间分辨率和低对比度分辨率的比较

Comparison of the spatial resolution and low contrast resolution between the axes location image and MPR image of multi-slice helical CT

线栅PBS能实现高的对比度且能简化系统结构。

A wire-grid PBS can achieve high contrast and can simplify the system construction .

磁共振成像（MRI）技术因为无创，成像对比度高等优点，成为目前最主要的医学成像手段之一。

Magnetic Resonance Imaging ( MRI ) is one of the major approaches of medical imaging , because it is non-invasive and provides high imaging contrast .

非对称法布里－伯罗腔光调制特性分析及高对比度GaAs／AlGaAs调制器

Modulation Characteristics Analysis of Asymmetric Fabry-Perot Cavity and GaAs / AlGaAs Modulator With High Contrast Ratio

目的：研究Gd－DTPA的对比度增强作用与时间的关系，提高MRI中使用Gd－DTPA的有效性和诊断作用。

Objective : To investigate the relationship between contrast-enhancement effect and time post-Gd-DTPA , so that to advance the effectiveness and diagnostic significance of Gd-DTPA in MRI .

介绍了小波对比度的特点和C均值模糊分类算法，把它们结合来分割图像的明暗区域，再加上整数小波变换域中系数大小的自应嵌入，提出了基于整数小波变换的隐写方法。

Introduced wavelet contrast features and FCM algorithms , which are combined to split the image of light and dark areas , coupled with the size Adaptive of integer wavelet transform domain coefficients .

该软件可以在各种不同的工作条件下模拟末修子弹探测机场的运动轨迹，同步地动态显示天线温度TA（θF）随时间的变化曲线，并计算出天线温度对比度？

It can simulate the moving track that the passive detector detects the airport and display the curve of antenna temperature in phase .

Gd-DTPA的对比度增强作用与时间的关系

Gd-DTPA : The Relationship Between Contrast-enhanced Effect and Time

准直背光源加漫射观察屏的液晶盒外光学补偿法在改善LCD视角的同时，还可提高LCD的对比度。

The collimating back lighting plus diffusing viewing screen can improve the viewing angle and increase the contrast of the LCD at the same time .

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 .

在Snake模型中增加形状约束能量项后，能够有效地处理变形曲线从低对比度区域泄漏的问题；

After the shape constraint energy term is added , the Snake model can prevent the deforming curve from leaking out of the low contrast regions effectively .

实验证明，该算法对JPEG压缩、去噪声、裁剪、对比度调节、明暗度调节、滤波等图像操作具有较强的鲁棒性。

The algorithm remains robust as for the JPEG compression , denoising , clipping , filtering , and the contrast and luminance adjustment .

得到一种简便的提高CCR干涉仪、干涉测长、数控机床干涉条纹对比度的方法；

A method of raising pattern contrast in CCR interferometer , interference measure length and digital control device are obtained .

编写了VB程序来计算纹影图像的对比度，从而可较准确的分析和比较两种混合器的混合效果。

The contrast of Schlieren images was computed by the designed Visual Basic program and applied to analyzed and compare the mixing effects of the two types of CNG engine mixer .