查询词典 tackle key problems

Mr Calderón has tried to tackle some of these problems.

卡尔德隆已设法来处理由于金融危机带来的一些问题。

We've been working on new computational methods to tackle these problems.

我们已开始着手研究处理这些问题的新计算方式。

And it is only by building a new foundation of mutual trust that we will tackle some of our most entrenched problems.

而仅有通过建立新的互信，我们可解决一些最牢不可破的问题。

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。

When we were in frustration of dealing with the problems, when we were to fall apart in disasters; when we were in despair of being betrayed; we may tackle those with 'heartsease' --- thanks to the God, we will be given a new life, a renascence of hope in mind.

当面对困难我们认为解决无望时，当面对挫折我们就要倒下时，当面对背叛我们无能为力时，我们以感恩的心面对这一切，我们就会获得重生的机会，让希望再次出现在我们的生命中。

To tackle seriously when problems are at the incipient period.

在问题出现的初期阶段就要认真处理好。

To better tackle these problems, the design of the rough neural network based on variable precision rough set model, in which the majority inclusion relation is used, is studied.

为更好地解决这些问题，研究了基于"多数包含关系"的变精度粗糙集模型下的粗集神经网络设计。

The International Finance Corporation, the investment arm of the World Bank, is trying to tackle these problems by enforcing the "Equator Principles".

世界银行的投资机构，国际金融公司，正试着一加强"赤道原则"的方式来解决这样的问题。

But with a new wave of students looking to use their business skills to tackle global problems, stories of social enterprises such as LifeSpring's find eager audiences.

但随着新的一批学生希望利用自己的商业技能来解决全球性问题， LifeSpring等社会企业的故事找到了热情的听众。

Almost at once, RAND developed a unique style, blending scrupulous nonpartisanship with rigorous, fact-based analysis to tackle society's most pressing problems.

几乎就在一次，兰德公司开发了一种独特的风格，融合严格nonpartisanship严格，以事实为依据的分析，解决社会最紧迫的问题。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。