查询词典 gradual change

The selecting mechanism of variation and reservation,the gradual change, cumulate,continuality,and the nonlinear chanciness in the evolutionism can all be used to explain the development of technology.

生物进化中变异与被保留的选择机制，渐进、累积和延续性，非线性决定的偶然性等等，都可用来说明技术的演变。

Uniformity or the lack thereof is the gradual change of luminance and/or chrominance across the display.

同样或者其缺乏是逐渐亮度的变化和/或穿过展示的chrominance。

Uniformity 同样 Uniformity or the lack thereof is the gradual change of luminance and/or chrominance across the display.

同样或者其缺乏是逐渐亮度的变化和/或穿过展示的chrominance。

The present study initially put forward that the overestimation to underestimation of actual flow rates by the flow rates calculated using the hemispheric flow convergence method is due to the gradual change of isovelocity surface area in different zones of the flow convergence region, which was proven in our in vitro, animal and human studies.

7血流会聚法对二尖瓣狭窄瓣口面积、室间隔缺损分流量的确定也是一种较为准确、可靠及影响因素较少的方法。(8)本研究首次提出由于不同血流会聚区等速表面形态变化导致半球血流会聚方法计算流量从高估到低估实际流量的论点，并在离体、动物及人体研究证实。

Local organizations' disposure of spatial development undergoes a gradual change from "giving up" to recovering in this process.And agglomeration-diffusion movements formed by positive and negative effects of industrial agglomeration keep changing rural spatial structure of PRD,make idiovariations of rural space of PRD.

地方组织的空间开发主导权在这一过程中也经历了从"主动丧失"到逐步恢复，再到完全掌控的变化过程，而产业集聚的正负效应综合形成的集聚—扩散运动，不断改变着珠三角农村空间结构，使珠三角农村空间发生异变。

It is the first important step in video analysis and will directly affects the effectiveness of indexing Shot boundary detection is one of our major research interests and we will tackle the following existing problems the ambiguity between gradual change and camera motion, the discontinuity during gradual change, false detection caused by illumination variation and flashlight, automatic threshold selection Firstly, we discuss shot boundary detection in non-compressed domain In chapter 2, we compare some of the commonly used detection methods which are based on frame difference and point out that single feature will not generate good results As a conclusion, we use fuzzy logic to combine multiple features Presently, most frame difference based shot boundary detection algorithms rely on threshold and hence the selection of such thresholds will greatly affect the performance of boundary detection We propose a membership function to define frame difference and calculate the membership with self adaptation according to the statistic distribution of frame differences to satisfy different type of video clips Experiments show that the proposed fuzzy shot boundary detection algorithm can be used with different video types and has a high detection precision and recall In chapter 3, we discuss model-based shot boundary detection algorithms regarding chromatic and spatial editing effects such as fade-in, fade-out, dissolve and wipe Various parameters are proposed to better describe the characteristics of each editing type.

镜头边界的检测是把视频自动地分割为一个个镜头，作为基本的索引单元，因此它是视频分析重要的第一步，直接影响到视频检索的成败。镜头边界的检测是本文研究的重点之一。目前镜头边界检测算法主要存在以下问题：渐变与镜头运动难以区别；渐变过程中的不连续与停顿、光照条件的变化及闪光灯等特殊情况会引起误检测；自动选择阈值比较困难等。本文首先针对非压缩域视频进行了镜头边界检测的研究。在第二章中我们采用了比较流行的基于帧间差的方法。在比较各种帧间差计算方法的基础上，指出使用单一的特征难以取得很好的检测效果，提出用模糊逻辑综合使用各种特征。目前大多数基于帧间差的镜头边界检测算法都采用阈值法进行镜头转换的判别。阈值选择的误差对检测性能有较大的影响，本文提出用隶属度函数定义帧间差较大、中等较大和较小等概念，并根据帧间差的统计分布自适应地确定隶属度，以适应不同类型的视频片断。实验结果表明这种基于糊逻辑的镜头边界检测算法可以适应不同的视频，并具有较高的检测精度和检出率。在第三章中采用基于模型的方法进行镜头渐变的检测，研究了淡入／淡出、慢转换和扫换的模型。

Now, we have discussed a lot about issue selection and the gradual change process we have set up.

现在，我们已经讨论了有关问题的选择和渐进的变化过程中，我们建立了很多。

Second, the scene cut and gradual change are detected using the number of each macro block code type in P- and B-frames.

3在MPEG视频的内容变化特性的分析中，本文直接针对码流数据进行研究，提出了一种针对场景突变，缓变以及闪光的快速检测方法。

Over millions of years through gradual change development and natural selection all the different species of life that we know today have evolved.

数百万年来，通过逐渐变化，发展和自然进择，我们今天知道的所有不同生命的物种都进化了。

The bioinformatics analysis showed that Ang II and ET, IL-1; PGI2 and ALD; NO and ALD composed of three subsystems and interrelated according to the principle of optimality of complex system, and gradual change regulation was also observed in fatigue stress group.

复杂系统分析结果显示：在疲劳应激组，AngⅡ、IL-1β与ET之间，ALD与PGI2之间，ALD与NO之间分别构成3个相互独立的系统，它们之间均是按照复杂系统的最优化原则发生相互联系，并存在递变规律。

This is not an ordinary box, which is used as a background picture of the dialog box, very pretty.

详细说明：这可不是一个一般的对话框，它是用图片作为背景的对话框，非常好看。

Conceal me what I am,and be my aid for such disguise as haply shall become the form of my intent.

遮掩我的身份，帮助我，我的面具将成为我的目的。