位置确定方法、系统及装置

By fusing camera and radar data and using a preset transformation matrix to convert camera pixel coordinates to radar coordinates, the problem of a single sensor being unable to determine the spatial position of a target vehicle is solved, thus achieving more accurate autonomous driving perception.

CN116758154BActive Publication Date: 2026-07-17BEIJING JINGWEI HIRAIN TECH CO INC

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING JINGWEI HIRAIN TECH CO INC
Filing Date
2023-06-01
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, using a single sensor is insufficient to meet the comprehensiveness and accuracy requirements of autonomous driving systems. Furthermore, when radar space is projected onto the camera plane, the spatial coordinates of the target vehicle are lost, making it impossible to determine the spatial position of the target vehicle by fusing camera and radar data.

Method used

By fusing camera and radar data, a preset transformation matrix is ​​used to convert the pixel coordinates collected by the camera to the radar coordinate system. Combined with radar point cloud data, the spatial position of the target vehicle is determined, including the conversion of the pixel coordinates of the center point of the target vehicle's bounding box and key points into spatial coordinates.

Benefits of technology

It achieves unified data from cameras and radar, accurately determines the spatial location of target vehicles, and improves the robustness and accuracy of the perception module of the autonomous driving system.

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Abstract

本申请公开了一种位置确定方法、系统及装置。该方法应用于位置确定系统包括的终端,该方法包括:获取第一图像和第一点云数据,基于第一图像,确定第一像素坐标和第二像素坐标,根据预设转换矩阵,确定第一像素坐标在雷达坐标系中对应的第一空间坐标和第二像素坐标在雷达坐标系中对应的第二空间坐标,根据第一空间坐标和第二空间坐标,确定目标车辆在雷达坐标系中的第三空间坐标,并根据第一点云数据确定目标车辆在雷达坐标系中的第四空间坐标,根据第三空间坐标和第四空间坐标,确定目标车辆的目标空间坐标。这样,可以使通过相机和雷达获取到的数据统一到雷达坐标系,从而可以基于相机和雷达获取的数据来更准确地确定目标车辆的空间位置。
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