基于RFID的目标成像方法的性能评价与分析Performance evaluation and analysis of target imaging methods based on RFID
史伟光,李婉琪
摘要(Abstract)：
TagScan成像系统将目标估计图像与实际图像进行直观视觉对比来评估成像性能，该方法简单易行但难以反映精确的图像失真程度，致使影响TagScan系统成像性能的因素尚未被分析。针对以上问题，本文提出一种基于偏离度的成像精度评价方法，通过计算目标实际图像轮廓点与对应的估计图像轮廓点的偏差，将目标估计图像的误差量化。选取不同边缘类型目标的估计图像为研究对象，利用偏离度分析目标初始轮廓的形式对目标成像精度的影响，为目标初始轮廓的优化设定提供依据。仿真结果表明：对于四边形目标，采用直线型目标初始轮廓获取的估计图像的偏离度比采用弧线型目标初始轮廓获取的估计图像的偏离度降低了87.63%；对于圆形目标，采用弧线型目标初始轮廓的估计图像的偏离度比采用直线型目标初始轮廓的估计图像的偏离度降低了96.6%。
关键词(KeyWords)： RFID;目标成像;偏离度;性能评价
基金项目(Foundation): 天津市自然科学基金资助项目（19JCQNJC03300）
作者(Author): 史伟光,李婉琪
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