信息安全审计中的图像过滤技术研究

目前网络信息审计系统大多基于文本信息的过滤,但不良信息的提供者将不良信息嵌入到图像或直接以图像文件,绕过监控。文中介绍了基于图像内容过滤的信息审计系统中的图像检索技术,首先论述了图像检索中应用最为广泛的颜色特征的提取,接着论述了所有物体表面共有的内在特性纹理特征的提取,然后论述了形状特征的提取,最后论述了图像的空间关系特征的提取。

Information Audit Based on Image Retrieval

At present, network information audit system is almost based on text information filtering, but badness information is embedded into image or image file directly by badness information provider. In order to avoid monitored by a comprehensive discuss is given about the state of the art in research of semantic image retrieval, especially about the multi-level semantic modeling, semantic knowledge representation, and the processes and methods with which to mapping visual features to high lever semantic contents.