원문정보
초록
영어
In order to solve the key technical problem in the verification process of mechanical and electrical coal mine anemometer, the paper presents digital recognition approach base on the characters of the anemometer image. First of all, collect the mirror images of the anemometer from a plain mirror which in the wind tunnels. And then we process the mirror images with secondary mirroring, grayscaling, denoising and binarization. Followed the location of the digital area can be determined and the incline distortion of the image can be adjusted. The final step is segmenting the single character in the digital character region and identify the corresponding number base on the characteristics of anemometer, which using the LED digital tube to display numbers. The experiments show that this method can accurately identify the numbers on the anemometer and has high recognition rate. The recognition time is able to meet the requirement for the verification of anemometer. Thus the method has high practical value.
목차
1. Introduction
2. Image Collection and the Secondary Horizontal Mirror
3. Image Preprocessing
4. Digital Region Location and Incline Distortion Adjustment
4.1. Anemometer’s numerical region Location
4.2. Incline distortion adjustment
5. Digital Region Segmentation
6. Character Recognition
6.1. Digit recognition
6.2. Decimal point recognition
7. Experimental Results
8. Conclusions
Acknowledgements
References