基于局部颜色-空间特征的图像检索方法研究  

RESEARCH ON LOCAL COLOR-SPACE CHARACTERISTICS IMAGE RETRIEVAL METHOD

作　　者：王保平[1] 赵静[1] 苏建康[2] 孙超[1] 郭俊杰[1] 

机构地区：[1]西北工业大学无人机特种技术国家级重点实验室,陕西西安710065 [2]西北工业大学电子信息学院,陕西西安710072

出　　处：《计算机应用与软件》2012年第5期28-31,34,共5页Computer Applications and Software

基　　金：国家自然科学基金项目(61073106);航天基金项目(20100391013)

摘　　要：研究均匀分块颜色直方图和累加颜色直方图的特征提取方式,分析其在考虑颜色统计分布和颜色空间分布问题上的优点和缺点,实现均匀分块颜色直方图和累加颜色直方图特征提取方式的图像检索,并在此基础上对特征提取方式进行改进,提出一种基于HSV非均匀量化分块颜色直方图的算法,并对该算法进行验证。研究结果表明,该算法改善了颜色特征缺乏空间信息的缺点,并验证了基于HSV非均匀量化分块颜色直方图的算法相对于均匀分块颜色直方图和累加颜色直方图有较好的检索精度。The feature extraction methods for the uniform block color histogram and the accumulative color histogram are studied.Their merits and drawbacks that are considered about color statistical distribution and color spatial distribution are analyzed.Image retrieval is realized for the uniform block color histogram and the accumulative color histogram feature extraction methods,upon which improvements are made about feature extraction methods.An algorithm based on HSV non-uniform quantization block color histogram is proposed and validated.Research results indicate that the algorithm heals the lack of spatial information within color characteristics;moreover it is validated that compared to the uniform block color histogram and the accumulative color histogram,the algorithm based on HSV non-uniform block color histogram boasts for higher retrieval accuracy.

关 键 词：图像检索 颜色特征 颜色直方图 特征提取 

分 类 号：TN911.23[电子电信—通信与信息系统]