【摘要】 分析基于内容的检索技术的基本特点及其应用,介绍基于内容的检索技术新的发展动向和相关技术特点,特别是从网络上多媒体数据库的角度对基于内容的检索技术结构特点进行分析,并结合MPEG4标准做初步讨论。更多还原

【Abstract】 The SIFT features of gray-scale image is extracted and applied to image retrieval, which is a hot topic at home and abroad. The distance function is used for similarity measure of image feature vector and realizes the matching of feature vector. The experiment proves that if the image changes(such as size or rotation), it is almost no effect to match the image.更多还原