摘要
行人检测系统是目前先进驾驶辅助系统中直接面向行人的保护系统,可最大程度地减少行人所受到的伤害。纹理对称度特征是目前最直观且能够用于表征行人的特征。文中在采用基于纹理对称度特征方法提取感兴趣区域的基础上,提出了一种线检测的方法,可以有效地减少检测过程中阴影、树叶等小纹理对检测结果的影响。最后利用梯度方向直方图特征和支持向量机方法对感兴趣区域进行验证。试验结果表明,该方法在保证检测速度的前提下,可减少检测过程中的虚警和漏警情况。
Pedestrian detection system is the pedestrian protection system in advanced driving-assistant system, which can effectively reduce pedestrian injury. Texture symmetry degree is currently the most proper feature that can describe pedestrians. A linear detection method is proposed by extracting the region of interest based on texture symmetry degree to effectively reduce the influence of small textures, such as shadow and leaves. The regions of interest are verified by histogram features of gradient direction and support vector machine method. Experiments show that the proposed method can significantly reduce false alarms and missing alarm without affecting the detecting speed.
出处
《电子科技》
2014年第8期22-25,共4页
Electronic Science and Technology
关键词
行人检测系统
对称度特征
线检测
支持向量机
pedestrian detection system
symmetry feature
line detection
support vector machine
