CAJ | 학술논문

为了解决智能电表（Smart Meter）自动化检测系统中的关键技术问题，提出了在低对比度环境下智能电表液晶屏外观质量检测的处理方法。实现液晶屏区域的准确分割；采用基于小波变换的图像增强算法在低对比度环境下突出液晶屏上的字符信息；利用形态学梯度对字符信息进行重构，最终实现对液晶屏的外观质量检测。实验结果表明，该处理方法能够有效地解决低对比度环境下的智能电表液晶屏外观质量检测问题，检测可靠性高，具有较高工程应用价值。
위료해결지능전표（Smart Meter）자동화검측계통중적관건기술문제，제출료재저대비도배경하지능전표액정병외관질량검측적처리방법。실현액정병구역적준학분할；채용기우소파변환적도상증강산법재저대비도배경하돌출액정병상적자부신식；이용형태학제도대자부신식진행중구，최종실현대액정병적외관질량검측。실험결과표명，해처리방법능구유효지해결저대비도배경하적지능전표액정병외관질량검측문제，검측가고성고，구유교고공정응용개치。
In order to solve the key technical problem in the smart meter automatic detection system, the smart meter LCD screen appearance quality detection approach in the low-contrast environment is proposed. It achieves accurate seg-mentation of the LCD screen area, enhances the character information of LCD screen based on wavelet transform in the low-contrast environment, reconstructs the character information with morphological gradient, and finally fulfills the LCD screen appearance quality detection. The experimental results show that such treatment is an effective solution to the smart meter LCD screen appearance quality detection in low-contrast environment with high detection reliability, so it has a high engineering applications value.