查询词典 retrieval

This is the one on the contour tracing and retrieval of articles, hoping to be helpful to everyone.

详细说明：这是一篇关于轮廓跟踪与提取的文章，希望能对大家有所帮助。

This paper proposed to use elliptical Gabor filter with least redundancy to convolute with palmprint,sub-bands with 4 scales and 6 directions are obtained,calculate the average and deviation of every sub-band,48D texture feature is extracted,and normalize the 48D feature in the whole database,finally use distance of absolute value to measure the difference between two feature vector.The result shows the arithmetic proposed by this paper has a little high retrieval accuracy.

本文采用最小冗余度的椭圆Gabor滤波器组对掌纹图像滤波，得到4个尺度6个方向的子带，计算每个子带的均值与方差，得到48维的纹理特征，在整个数据库中对48维特征进行归一化，最后采用绝对值距离衡量不同特征向量间的差异。

This is the image retrieval algorithm two core program.

这是图像检索算法的两个核心程序。

The final experimental results on the Corel database show that the proposed approach greatly improves the retrieval performance.

在Corel通用图像测试库上的实验表明，本文算法可以明显提高检索的准确率和收敛的速度。

This paper presented a feature fusion algorithm of medical image retrieval about endoscopic image based on FCM using color histogram combining with color correlogram.

针对医学内窥镜图像，提出一种基于模糊C-均值聚类算法(Fuzzy C-Means Clustering、FCM)的综合颜色直方图和颜色相关图两种特征的特征融合算法。

Topic crawler is a new and practical application in the field of information retrieval.

基于主题的信息采集是信息检索领域内一个新兴且实用的方法，通过将下载页面限定在特定的主题领域，来提高搜索引擎的效率和提供信息的质量。

In order to apply the methods of the harmonic retrieval and the noise filtering based on the cumulant being used widely to the real data processing, these methods should be studied further.

并指出了大量理论研究所广泛采用的累量自身、基于累量的谐波恢复方法和基于累量的滤噪方法在实际应用过程中的缺陷以及进一步研究的意义。

Moreover, both the heuristic adjustment for clustering results and the cut-and-try method as well as human-computer interaction improve the image retrieval more efficiently.

算法改进了ISODATA的初始聚类中心的选取方法，其初始聚类中心的选择是面向数据分布的，具有较好的通用性，因此适合各种分布特性的数据对象。

Database or Data Base is constructed for the purpose of information retrieval, is a combination of data files in a unit.

数据库是为了信息检索而建立的系统，是一个单位的文件的结合体。

One disadvantage of the fast growth of digital resources in digital libraries is the decrease of retrieval speed and result accuracy.

1背景随着数字图书馆理念和技术的不断发展，很多图书馆所拥有的数字资源与日俱增。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。