首页> 中文期刊> 《计算机集成制造系统》 >基于空间金字塔和特征集成的智能机器人目标检测算法

基于空间金字塔和特征集成的智能机器人目标检测算法

         

摘要

With the accelerated study of artificial intelligence in recent years,robots had become research hotspot due to complex demand on recognition,detection and control.By taking NAO soccer robots as the example,aiming at the difficulty of object recognition in competition with complex background,variable illumination and viewpoints,a real-time object detection method based on spatial pyramid and integrated features was proposed.To address the problem caused by different sights,the multi-scale detection was introduced by constructing Gaussian spatial pyramid space through the original image.Furthermore,a dual-channel serial detection framework was proposed,and HOG-PCA basic detector with linear support vector machine which had fast speed and low undetected rate were used to make preliminary detection;an advanced RGB-SIFT-PCA/BOVW detector and random forests with high precision and low error rate were used for secondary screening.Non-maximum suppression algorithm was adopted to remove redundant bounding boxes.Experimental results demonstrated that the proposed method achieved high robustness and real-time performance in intelligent robot object recognition task.%随着人工智能研究的不断升温,机器人以其对识别、检测、控制的复杂需求逐渐成为研究热点.以NAO足球机器人为例,针对比赛球场背景复杂、光照视角多变、造成目标识别困难的问题,提出一种基于空间金字塔和特征集成的目标实时检测算法.算法引入多尺度检测,通过对原始图像构建高斯金字塔空间,解决了不同视距下目标检测的难点.提出双通道串行特征集成框架,利用计算速度快、漏检率低的梯度方向直方图特征基础检测器和线性支持向量机做初步检测,采用识别精度高、错检率低的三通道尺度不变特征转换描述子改进检测器和随机森林做二次筛选,然后使用非极大值抑制算法去除冗余标定框.实验结果表明,该方法在智能机器人目标识别任务上具有很高的鲁棒性和实时性.

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