( 4 ) a video retrieval testing system is devised and implemented . it includes following subparts . a multi - granularity description model of video is proposed ( 4 )设计并实现了视频检索实验原型系统，包括：提出了视频的多粒度分层描述模型；设计了体现多粒度和多特征的视频相似性度量方法。
The paper researches how to derive features automatically and how to match image perceptual similarity as well as possible . first , the paper presents a novel algorithm to extract color signatures 本文主要针对这两个问题，研究如何描述图像内容，准确、自动地提取特征，以及精确地对图像内容进行相似性度量。
This model can greatly reduce the number of dimensions , incarnate the variety of users " interests wel 1 , and adopt many mature techniques in the vector space model such as comparability formula 该模型能大幅度降低维度，很好地体现用户兴趣的多样性，并且可继续采用相似性度量公式等在向量空间模型中的成熟技术。
Extracting the watermark requires the original image , and its procedure is the reverse of embedding procedure . the existence of watermark is decided by observation visually and similarity measurement 水印恢复时需借助原始图像信息，其过程是水印嵌入的逆过程，水印的存在性通过视觉观察和相似性度量两种标准来判定。
This paper have discussed three key questions on how to make use of the characteristic of color , which include expressing color , obtaining the characteristic of color and measuring the likeness based on color 本文对利用颜色特征进行图象检索的三个关键问题：颜色的表示，颜色特征的提取和基于颜色的相似性度量进行了讨论。
This paper have discussed three key questions on how to make use of the characteristic of color , which included expressing color , obtaining the characteristic of color and measuring the likeness based on color 本文对利用颜色特征进行图像检索的三个关键问题：颜色的表示、颜色特征的提取和基于颜色的相似性度量进行了讨论。
At first , it analyses the image content and acquire the attention objects . then , images are matched and indexing is performed based on the features of those extracted attention objects 它首先对图象进行分析，提取出其中用户感兴趣的物体，再利用感兴趣物体的颜色和纹理特征来表征图象的特征，进行图象匹配和相似性度量计算。
3 - d geometric matching and similarity research aims to achieve recognition , similarity measurement , and matching of 3 - d geometric objects , by means of object analysis , transformation , and feature extraction 三维几何匹配与相似性技术研究是通过对三维几何模型的分析、变换、特征提取等手段来实现对几何模型的识别、相似性度量、匹配等。
The fuzzy distance is defined to measure the similarity of two elements , and the similarity distance of two sequences is defined as the mean of the fuzzy distance of the elements on the mapping path 2为了度量序列模式的相似性，定义了顺序映射来描述序列变化模式之间的对齐，将序列映射路径上的模糊相似性距离作为两个序列之间的相似性度量。
