基于多目标粒子群优化算法的斜尖柔性针穿刺路径规划
Puncture Path Planning for Bevel-tip Flexible Needle Based on Multi-objective Particle Swarm Optimization Algorithm
查看参考文献25篇
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文摘
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针对斜尖柔性针在复杂环境下由入针点到达病灶位置的穿刺路径问题,提出一种基于多目标粒子群优化算法(MOPSO)的路径规划方法.对软组织内柔性针运动学模型进行分析,构建控制量与柔性针穿刺路径的关系;分析障碍物约束,建立障碍物约束的数学描述;然后,根据穿刺术的要求将穿刺精度、穿刺危险性和穿刺路径长度作为柔性针穿刺优化目标,将柔性针穿刺路径规划问题转化为多目标优化问题;建立了相应的多目标优化问题的数学模型,使用多目标粒子群优化算法对模型进行优化求解.最后通过仿真实验证明了所提方法的有效性,并仿真分析了穿刺路径的在线修正问题. |
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其他语种文摘
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A path planning algorithm based on multi-objective particle swarm optimization (MOPSO) is proposed to plan the puncture path of bevel-tip flexible needles from the start point to the target in a complex environment. The flexible needle kinematic model in soft tissues is analyzed, and the relationship between the puncture path and controlled variables is established. Then a mathematical description of obstacles is built based on the constraint conditions of obstacles. After that, the path planning problem is transformed into a multi-objective optimization problem whose optimization objectives include puncture error, puncture danger and puncture length according to the clinical requirements of puncture. Thus, a mathematical model of the multi-objective optimization problem is set up, and MOPSO algorithm is employed to solve the multi-objective optimization problem. Finally, simulations are performed to demonstrate the effectiveness of the proposed method, and the online modification of puncture paths is analyzed. |
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来源
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机器人
,2015,37(4):385-394 【核心库】
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DOI
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10.13973/j.cnki.robot.2015.0385
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关键词
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穿刺术
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柔性针
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路径规划
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粒子群优化算法
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地址
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中国科学院沈阳自动化研究所, 机器人学国家重点实验室, 辽宁, 沈阳, 110016
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1002-0446 |
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学科
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自动化技术、计算机技术 |
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基金
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国家自然科学基金
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文献收藏号
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CSCD:5491369
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参考文献 共
25
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