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融合点线特征的空间失效目标双目视觉位姿测量

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提出了一种融合点线特征的双目视觉位姿估计方法,该方法基于视频的图像帧,先分别通过ORB算法和LSD算法提取图像帧的点、线特征,并采用LBD描述子实现帧间匹配;然后基于极线搜索方法获得右图像中与左图像对应的特征,从而获得匹配特征的空间坐标;最后基于点线特征融合的重投影模型,利用Levenberg-Marquardt法迭代获得失效目标的相对位姿.仿真实验表明,融合点线特征的视觉位姿估计方法相比单纯点特征的位姿估计具有更好的鲁棒性,尤其针对高速旋转目标,能更好地进行位姿跟踪测量.
Binocular Visual Pose Measurement of Spatially Invalid Targets with Fused Point-line Features
A binocular vision pose estimation method is proposed,which combines point and line features,and this method is based on the image frame of the video.Firstly,the point and line features of the image frame are extracted through the ORB algorithm and the LSD algorithm,and the LBD descriptor is used to realize Inter-frame matching.Then,based on the epipolar line search method,the features in the left image corresponding to those in the right image are obtained,thereby the spatial coordinates of the matching fea-tures are obtained.Finally,based on the reprojection model of point-line feature fusion,the Levenberg-Mar-quardt method is used to iteratively obtain the location of the failed target's relative pose.The results of simulation experiments show that the visual pose estimation method with point-line features is more robust than the pose estimation method with simple point features,especially for high-speed rotating targets,and it can perform better pose tracking measurement.

Pose measurementBinocular visionSpace invalid targetPoint-line featureEpipolar line search

杨正昊、康国华、袁馨语、邱钰桓

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南京航空航天大学航天学院,南京 210016

位姿测量 双目视觉 空间失效目标 点线特征 极线搜索

2024

航天控制
北京航天自动控制研究所

航天控制

CSTPCD
影响因子:0.29
ISSN:1006-3242
年,卷(期):2024.42(1)
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