基于邻域加权的指针式仪表识别技术

Pointer Instrument Recognition Based on Neighborhood Weighting

提出一种新的指针式仪表精确识别体系。首先使用基于轮廓特征的标注方法,建立刻度-位置映射表,其次进行模板匹配,然后使用基于邻域加权的指针检测方法确定指针位置,最后在该类标注体系下完成基于局部圆弧定位的插值读数。实际应用结果表明:该体系标注简单、读数精确、误差较小,适用于复杂环境的指针式仪表识别。

A new precise recognition system for the pointer instrument was proposed.In which,having the profile feature-based labeling method adopted to establish a scale-to-position mapping table;then,having the template matching performed and the neighborhood weighting-based pointer detection method used to determine pointer position;finally,having the local arc positioning-based interpolation read under this annotation system.The application in practice indicates that,the system has simple labeling,accurate result and small errors and it can adapt to pointer instrument recognition in more complex environments.