遗传算法优化多MPEG-7特征的检索算法

Retrieval technology of multi MPEG-7 description optimized by genetic algorithm

针对基于内容的图像检索难于通用化的问题,使用MPEG-7的颜色布局描述符和平行纹理描述符建立联合特征空间,并采用遗传算法对其内部特征权重以及描述符之间的权重进行优化。实验结果表明,使用上述方法大大降低了系统检索时间,明显提高检索效率。

Aiming at the difficulty of making the content based image retrieval to be universal,the color layout description and homogeneous texture description of MPEG-7 are used to establish the combined feature space.This paper uses the genetic algo- rithm to optimize both the inner feature weight within the description and the outer weight between the descriptions.The experi- ment result shows that the retrieval time decreases and the efficiency increases.