| 引用本文: | 万琴,宁顺兴,钟杭,何勇,段小刚,王耀南,吴迪,沈学军.面向弱纹理工件的6D位姿估计与机械臂抓取方法[J].控制理论与应用,2025,42(7):1443~1452.[点击复制] |
| WAN Qin,NING Shun-xing,ZHONG Hang,HE Yong,DUAN Xiao-gang,WANG Yao-nan,WU Di,SHEN Xue-jun.6D pose estimation and robotic arm grasping method for weakly rextured workpiece[J].Control Theory & Applications,2025,42(7):1443~1452.[点击复制] |
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| 面向弱纹理工件的6D位姿估计与机械臂抓取方法 |
| 6D pose estimation and robotic arm grasping method for weakly rextured workpiece |
| 摘要点击 3775 全文点击 289 投稿时间:2023-09-20 修订日期:2025-02-14 |
| 查看全文 查看/发表评论 下载PDF阅读器 HTML |
| DOI编号 10.7641/CTA.2024.30636 |
| 2025,42(7):1443-1452 |
| 中文关键词 深度学习 6D位姿估计 目标检测 轨迹规划 机械臂抓取 |
| 英文关键词 deep learning 6D pose estimation target detection trajectory planning robotic arm grasping |
| 基金项目 国家自然科学基金青年项目(62006075), 湖南省重点研发计划项目(2021GK2024), 湖南省杰出青年科学基金项目(2021JJ10002), 湖南省自然科学 基金项目(2022JJ30198), 湖南省教育厅项目(21A0460), 湖南省研究生科技创新一般项目(CX20231287)资助. |
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| 中文摘要 |
| 针对复杂工业场景中机械臂难以对弱纹理工件进行有效抓取的问题, 本文提出了一种面向弱纹理工件的
6D位姿估计与机械臂抓取方法. 首先, 为提高弱纹理工件6D位姿估计的准确性, 结合YOLOV5和PVN3D-Tiny提出
了一种新的两阶段位姿估计算法(YOLO-PVN3D); 其次, 采用七次多项式插值法规划机械臂运动轨迹, 根据碰撞检
测参数和运动学指标建立适应度函数, 并通过遗传算法进行优化, 以解决抓取过程中机械臂与障碍物产生碰撞的问
题; 然后, 针对真实数据匮乏且容易造成模型过拟合的问题, 采用了真实数据和合成数据相结合的方式制作了工业
零件数据集POSE8K; 最后, 在公共数据集和自制数据集进行了对比实验, 并在障碍物遮挡和光照变化场景下完成
了真实机械臂抓取实验. 经实验验证了所提方法具有较好的性能. |
| 英文摘要 |
| In order to solve the problem that it is difficult for robotic arm to effectively grasp weakly textured workpieces
in complex industrial scenarios. This paper proposes a 6D pose estimation and robotic arm grasping method for weakly textured workpieces. Firstly, a new two-stage pose estimation algorithm (YOLO-PVN3D) is proposed by combining YOLOV5
and PVN3D-Tiny to improve the accuracy of 6D pose estimation for weakly textured workpieces. Then, the seventh-order
polynomial interpolation method is adopted to plan the movement trajectory of the manipulator, integrate the collision
detection results and kinematic indicators to establish a fitness function, and optimize it through a genetic algorithm to
solve the problem of collision between robotic arm and obstacles during gripping process. Moreover, a datasets POSE8K
is created by combining real data and synthetic data to tackle the problem of insufficient real-world data and the risk of
model overfitting. Finally, comparative experiments were conducted on public datasets and the custom datasets. In addition
real-world robot grasping experiments were performed in scenarios with occlusions and varying lighting conditions. The
experimental results demonstrate that the proposed method achieves superior performance. |
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