An Automatic Interpretation Method for LCD Images of Digital Measuring Instruments
A new automatic interpretation method for the Liquid Crystal Display (LCD) images of digital measuring instruments is proposed in this paper. The original image is down sampled to extract the edge of the LCD, which is utilized to locate the LCD region including the characters automatically. Subsequently, a group of multi-scale convolution masks are applied to deal with the LCD area in order to extract strokes of the characters. Finally, the characters are recognized according to the structural features, which are generated by using the lines to pass through the strokes of the characters. The experiment results prove the high robustness, high recognition accuracy and high running speed of the proposed method, which can meet the requirements in calibrating digital measuring instruments with LCD.
Multi-resolution image segmentation Multi-scale masks Character localtion Character recognition
Chao Liang Wenming Yang Qingmin Liao
Department of Electronic Engineering Tsinghua University Beijing, China Department of Electronic ngineering Tsinghua University Beijing, China
国际会议
2011 4th International Congress on Image and Signal Processing(第四届图像与信号处理国际学术会议 CISP 2011)
上海
英文
1857-1860
2011-10-15（万方平台首次上网日期，不代表论文的发表时间）