將機器視覺技術應用到水表檢定系統中，通過固定在被檢水表上方的高速高 分辨率攝像機，動態獲取運行中的水表圖像，用顏色特徵和背景高斯擬合建模結 合的算法實現水表指針的準確定位。將圖像即時轉換成數字讀數，並解決水珠、 氣泡等對讀數干擾的問題，實現水表高效率全自動檢定。

In this paper we apply advanced machine vision technology to the water meter calibration. Several high speed and high resolution cameras are installed at the top of the checked meter to dynamically access the running water meter image. The meter pointer is accurately positioned using color feature modeling and background Gaussian fitting algorithms. Machine vision approaches are used to convert the captured images into digital readouts. Encountered problems such as blurred surface and air bubble interfere are overcome. The developed system realizes high efficient automatic water meter verification.