| 指针式仪表自动识别装置的设计 |
| |
| 引用本文： | 丁婵,温宗周,刘丹. 指针式仪表自动识别装置的设计[J]. 西北纺织工学院学报, 2011, 0(1): 78-81 |
| |
| 作者姓名： | 丁婵 温宗周 刘丹 |
| |
| 作者单位： | [1]西安工程大学电子信息学院,陕西西安710048 [2]南方医科大学生物医学工程学院,广东广州510515 |
| |
| 摘 要： | 针对指针式仪表人眼读数效率低,不能转化成数字信号输入计算机,提出一种基于Hough变换的指针式仪表自动判读方法.该方法运用图像减影技术,通过调节图像分辨率实现指针的检出,再利用Hough变换做峰值检测、线检测和链接,通过转换偏转角度的基线位置,确定出仪表指针的读数.实验表明,该方法能快速有效地完成指针式仪表的自动判读,且最大不确定度明显优于人眼的识别,具有较高的精度.
|
| 关 键 词： | 减影技术 Hough变换 基线 |
The design of the automatic pointer instrument identification device |
| |
| DING Chan,WEN Zong-zhou,LIU Dan. The design of the automatic pointer instrument identification device[J]. Journal of Northwest Institute of Textile Science and Technology, 2011, 0(1): 78-81 |
| |
| Authors: | DING Chan WEN Zong-zhou LIU Dan |
| |
| Affiliation: | 1.School of Electronics ＆ Information,Xi′an Polytechnic University,Xi′an 710048,China; 2.School of Biomedical Engineering,Southern Medical University,Guangzhou 510515,China) |
| |
| Abstract: | Due to the problem of the analog meter signal can not be converted into digital signal input into computer,and the low efficiency of the human eye for the analog meter reading,a method was developed based on the Hough transform for pointer instrument identification.The gauge board image was gained from CCD and transformed into digital signal,extracting two pointers by adjusting the image resolution with Image Subtraction.By using Hough transformation to peak detection,line detection and link,with transferring the position of the baseline,the date of point instrument has been identified.The higher precision of the operator has been proved by the experiment.And the maximum uncertainty of the pointer＇s position in the analog instruments is less than the discrimination of the human eye. |
| |
| Keywords: | subtraction radiography Hough transform baseline |
| 本文献已被 维普 等数据库收录！ |
|
