对比度

Pastel Boas are very clean and have a high contrast.

粉彩博厄斯是非常干净，具有较高的对比度。

Firstly, Dempster-Shafer is developed by not only considering the certainty of the evidence, but also considering the average support of the evidence to different subsets in the assignment framework so that it can give more reliable combination result. Secondly, amplitude ratio feature and Euclid distance of the probability density distribution function in Pearson graph from different temporal SAR images are extracted to present change feathers in different scales. Finally, the improved Dempster-Shafer algorithm is applied to fuse the two different features to detect change information of SAR images.

首先通过综合考虑证据本身的确信度和证据对辨别框架中子集的平均支持度进行证据间的加权合成，改进证据理论对证据的合成，提高其可靠性；然后提取不同时相图像间的散射幅度的对比度和概率密度分布函数在皮尔逊图中的欧式距离，两种特征参数代表了像元级和区域级不同空间尺度下微波遥感图像中关于地表变化的信息；最后将改进的证据理论用于两特征之间的融合处理，得到地表的变化信息。

By controlling the size of pump beam and inserting an intracavity aperture in the plano-concave cavity, we obtain good contrast optical bottles at semi-confocal, 1/3-, and 1/5-degenerate cavity configurations, respectively.

只要适当的控制泵浦光斑与腔内实光栏的大小，在半共焦腔、1/3简并腔、与1/5简并腔下可以产生不同但是对比度极佳的瓶型光束。

This kind of device combining with a linear polarizer can be switched in a high contrast ratio and fast response.

这种偏振器件具有低的驱动电压，它和一个常规的线性偏振片相结合，可获得高对比度的显示效果。

Use a polarizing filter to eliminate some of the reflection and increase contrast; rotate it until you have the effect you want.

或者等阳光的光线适合时再重新拍摄，使用偏振镜可去除倒影并增强画面的对比度，除非必要时，请不要旋转镜头。

Since that time, the best roof prism binoculars approached the contrast offered by high-end Porro prism glasses.

从那以后顶级屋脊镜的对比度接近了顶级的保罗镜，而此前是不可想象的。

At last,the pseudocolor enhancement of infrared dim small target image was researched.Experiment result had shown that the vision effect and the definition of enhanced image was improved.

最后本文研究了红外弱小目标图像的伪彩色增强，实验结果表明增强后的图像改善了视觉效果，提高了对比度。

As for the inadequate contrast of infrared thermal imaging, as S curve mapping function is proposed to enhance target objectives and in the meantime suppress background clutters, which has the same range of domain with a variable interval and a non-symmetrical inflection point.

针对红外热成像对比度不足的问题，提出了一种S曲线映射函数，该函数具有定义域与值域区间一致、拐点非对称的特点，在目标图像增强的同时拟制了杂波背景。

A silver halide emulsion which exhibits high sensitivity, high contrast, little sensitivity variation with humidity conditions at the time of exposure, and excellent reciprocity law properties at high illumination intensities.

本发明公开了一种卤化银乳剂，其感光性高、对比度高、感光性随曝光时的湿度条件变化小，并且在高照明强度下倒易律性能优良。

In older age group, the visual acuty of Comprehensive refractometer is higher than Visual projector and Visual box. The difference of the visual acuity may be caused by the different contrast in different background luminance and visual box luminance.

在老年组的裸眼视力测量结果中，综合验光仪好于视力表投影仪和视力表箱，这种视力测量的差异可能是由于不同背景亮度及视标照度下视标的对比度不同所引起。

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