对比度

Image contrast enhancement by wavelet based homomorphic filtering［J］.

基于小波的同态滤波器用于图像对比度增强［J］。

Hyponome in rectum helps to show the institutional framework around the focus and improve the image to study contrast ratio.

应用直肠腔内水囊结合相控阵线圈的MRI检查方法，能准确定位复杂性肛瘘的内口、瘘管的走向及其与肛管直肠括约肌复合体之间的复杂关系，有利于显示病灶周围组织结构和提高影像学对比度。

The contrast of lesion-to-normal and lesion-to-CSF were higher in FLAIR, was particularly superior in demonstrating lesions in the hypophloeodal or paraventricular area.Small hemorrhagic foci in Sylvian cistern and the cerebral sulci can be easily shown in FLAIR and can?t be done in conventional T2WI.FLAIR was particular of superiority to demonstrate trauma and subarachnoid haemorrhage.

结果 FLAIR共检出病灶1889个，常规T2加权像检出1343个，FLAIR显示病灶的轮廓更为清晰，病灶与正常脑组织的对比度更高，在显示脑皮层下、脑室旁病灶方面更有优势，可显示常规MR T2加权像未能显示的侧裂池及脑表面脑沟的小出血病灶，在诊断颅脑外伤及蛛网膜下腔出血方面具有明显的优势。

The contrast of lesion-to-normal and lesion-to-CSF were higher in FLAIR,which was particularly superior in demonstrating lesions in the hypophloeodal or paraventricular area.Small hemorrhagic foci in Sylvian cistern and the cerebral sulci can be easily shown in FLAIR and can?t be done in conventional T2WI.FLAIR was particular of superiority to demonstrate trauma and subarachnoid haemorrhage.

结果 FLAIR共检出病灶1889个，常规T2加权像检出1343个，FLAIR显示病灶的轮廓更为清晰，病灶与正常脑组织的对比度更高，在显示脑皮层下、脑室旁病灶方面更有优势，可显示常规MR T2加权像未能显示的侧裂池及脑表面脑沟的小出血病灶，在诊断颅脑外伤及蛛网膜下腔出血方面具有明显的优势。

The paper proposes a method of image enhancement based on gray-levels in equal distance with interceptive way due to the drawback of histogram equalization with the phenomenon of over-enhancement and gray-levels annexation.

针对灰度直方图均衡化所引起的过增强和灰度级&吞并&等缺陷，提出基于截取法的灰度级等距离拉伸增强图像的对比度。

In this study, three cats were trained to perform monocularly a contrast detection task by two-alternative forced choice method. The perceptual ability of each cat improved remarkably with learning as indicated by a significantly increased contrast sensitivity to visual stimuli.

该研究用二选一(two-alternative forced choice)方法训练3只猫通过单眼进行对比度检测学习，发现每只猫对视觉刺激的对比敏感度随着训练而显著提高。

Quickly transform image gamma, brightness, contrast, saturation, hue, posterize from a single dialog, and preview the results in real time.

快速转换，图像伽马，亮度，对比度，饱和度，色调， posterize从一个单一对话框，预览结果实时。

A polyimide prepared by copolymerization of pyromellitic dianhydride, 4,4'-methylenedianiline and 4-butoxy-biphenol-3',5'-diaminobenzoate in N-methyl-2-pyrrolodone was used as liquid crystal vertical alignment layer.

虽然传统的平行取向技术已广泛应用于液晶显示器的生产，但其存在窄视角、低对比度和慢响应时间等问题，因此液晶分子的垂直取向技术在国外已经被广泛研究。

Vibration , reflectional dazzle light , noise , and the shape , color , contrast , and display mode of the displayed characters were main factors influencing the ergonomic availability .

目前国内虽有一些零散标准可用于评价人机显示/控制界面适配性工效，如特定的显示对比度，字符形状，颜色特征，照明环境等标准，但在工程使用中，最有价值的应该是驾驶员/显示/控制作业系统的工效综合评定方法和技术。

The experiment shows that the method proposed above is very effective in enhancement of underwater laser imaging to restain background noise, clear object details and advance contrast.

通过实验，验证了该算法能达到抑制背景噪声、突出目标细节、提高对比度的效果，对水下激光图像增强十分有效。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐