
科学技术与工程

中国技术经济学会
融合SVDD与模糊评价的医疗机器人手势交互可用性评价
胡世贺 , 李保霞 , 王丽 , 毛宁波 , 王传涛 , 赵宇
科学技术与工程 ›› 2026, Vol. 26 ›› Issue (9) :3696-3704
融合SVDD与模糊评价的医疗机器人手势交互可用性评价
Usability Evaluation of Medical Robot Gesture Interaction Based on SVDD and Fuzzy Evaluation
为解决椎板减压手术机器人三维手势交互可用性评价标准缺失、主观性过强等问题,通过支持向量数据描述(support vector data description,SVDD)与模糊综合评价(fuzzy comprehensive evaluation,FCE)相融合的方法,研究了医疗机器人手势交互可用性评价体系的构建。基于椎板减压手术特征和医疗环境约束,运用德尔菲法构建涵盖易学性、高效性、用户满意度、安全性的4级指标体系;采用SVDD算法对15名骨科专家的指标排序数据进行异常检测,通过最小体积超球体模型识别异常专家并实施自适应降权;建立多层次模糊综合评价模型,结合三角模糊数隶属度函数和专家问卷,对3种机械臂空间移动手势方案进行综合评价。结果表明:SVDD算法识别出3名异常专家,专家意见Kendall一致性系数由0.420 5显著提升至0.692 3,改善64.6%;权重分析显示交互满意度和可靠度为关键指标,权重分别为20.86%和18.40%;可用性评价显示拇指指向式手势获得最高得分3.97分,整体移动控制手势得分3.65分,食指指向控制手势得分3.51分。可见SVDD-模糊综合评价方法显著提升了医疗机器人可用性评价的客观性和区分度,经验证拇指指向式手势为椎板减压手术机器人的最优交互方案。
To address the issues of missing evaluation standards for the usability of three-dimensional gesture interaction in spinal decompression surgical robots and excessive subjectivity, a usability evaluation system for medical robot gesture interaction was constructed through a fusion of support vector data description (SVDD) and fuzzy comprehensive evaluation (FCE) methods. Based on the characteristics of spinal decompression surgery and the constraints of the medical environment, a four-level index system covering learnability, efficiency, user satisfaction, and safety was established using the Delphi method. The SVDD algorithm was used to detect anomalies in the ranked data of 15 orthopedic experts, identifying abnormal experts and implementing adaptive deweighting through the minimum volume hypersphere model. A multi-level fuzzy comprehensive evaluation model was established, combining triangular fuzzy number membership functions and expert questionnaires to conduct a comprehensive evaluation of three spatial movement gesture schemes for robotic arms. The results show that the SVDD algorithm identified 3 abnormal experts, with the Kendall coefficient of consensus among experts significantly improving from 0.420 5 to 0.692 3, an improvement of 64.6%. Weight analysis indicated that interaction satisfaction and reliability were key indicators, with weights of 20.86% and 18.40%, respectively. Usability evaluation revealed that the thumb-pointing gesture received the highest score of 3.97, the overall motion control gesture scored 3.65, and the index-pointing control gesture scored 3.51. It can be seen that the SVDD-fuzzy comprehensive evaluation method significantly improves the objectivity and discriminability of medical robot usability evaluation. The results verify that the thumb-pointing gesture is the optimal interaction scheme for the laminectomy surgical robot.
脊柱手术机器人 / 三维手势交互 / 可用性评价 / 支持向量数据描述 / 模糊综合评价 / 人机交互
spinal surgical robots / three-dimensional gesture interaction / usability evaluation / support vector data description / fuzzy comprehensive evaluation / human-computer interaction
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国家重点研发计划(2022YFB4700700)
国家高水平医院临床研究资金(2022-PUMCH-C-035)
国家自然科学基金(U24A20672)
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