Substation pointer instrument reading identification method

The invention relates to a substation pointer instrument reading identification method. The method comprises the steps of dial scale area detection, number position detection, number identification, pointer detection and reading identification. Instrument reading identification is carried out on the basis of number identification and pointer detection results, the accuracy of scale area detectioncan be verified in the inclination and alignment identification process of identified numbers, a distance calculation method based on scale numbers is adopted in the reading identification process, the identification precision is guaranteed, and good reliability is achieved. 本发明涉及一种变电站指针式仪表读数识别方法，包括表盘刻度区域检测、数字位置检测、识别数字、指针检测和读数识别，在数字识别和指针检测结果的基础上进行仪表读数识别，其中对识别出的数字进行倾斜与回正识别过程能够验证刻度区域检测的正确性，读数识别过程中采用基于刻度数字的距离计算方法，既保证了识别精度，又具有良好的可靠性。