一种基于雷达视觉融合的车辆目标检测方法

By combining adaptive radar point cloud enhancement, multi-pooling point cloud feature encoding, and a shareable multi-semantic space attention module, the problem of insufficient detection accuracy for long-range and small-scale targets under sparse radar point clouds is solved, achieving higher detection accuracy and robustness.

CN122176691BActive Publication Date: 2026-07-17XIAN UNIV OF SCI & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAN UNIV OF SCI & TECH
Filing Date
2026-05-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing radar-camera fusion methods struggle to effectively detect distant and small-scale targets when dealing with sparse radar point clouds in complex traffic scenarios, resulting in insufficient detection accuracy.

Method used

An adaptive radar point cloud enhancement module (ARHGM) is used to generate hybrid point clouds. Virtual points are generated through Gaussian and uniform distributions. Combined with a multi-pooling point cloud feature encoding module (MultiPool) and a shareable multi-semantic space attention module (SMSA), the point cloud density and feature representation capabilities are improved.

Benefits of technology

It improves the target detection accuracy under sparse point cloud conditions, reduces missed detections, enhances the detection capability for distant and small-scale targets, and improves the accuracy and confidence of detection boxes.

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Abstract

本发明属于目标检测技术领域,公开了一种基于雷达视觉融合的车辆目标检测方法,包括对图像生成实例掩码,将原始点云投影至图像平面,将落在实例掩码区域内的点作为前景点;将以前景点为中心、预设半径的圆形区域定义为第一虚拟点生成区域,将位于实例掩码区域且第一虚拟点生成区域外的区域定义为第二虚拟点生成区域;在第一虚拟点生成区域采用高斯分布生成第一虚拟点;在第二虚拟点生成区域采用均匀分布生成第二虚拟点;将第一虚拟点和第二虚拟点混合并投影回雷达坐标系,与前景点合并得到混合点云;本发明有效解决了雷达点云稀疏、特征编码信息丢失造成的检测性能不足问题,显著提升了远距离与小尺度目标的检测精度。
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