基于JSEG算法的点读机坐标定位方法

Coordinate Location Method in Point-reader Based on JSEG Algorithm

摘要:

针对点读书本颜色多样性的特点, 提出了一种基于JSEG算法的点读机坐标定位方法。首先,在LUV颜色空间采用邻近像素差分和二值法获取书本边框, 并建立书本边框坐标系;然后, 采用纹理和颜色特征相结合的JSEG算法对点读目标图像进行分割;最后, 根据点读笔颜色最小特性提取点读笔区域, 利用点读笔笔尖的曲率特性区分左右手握笔, 进而采用行扫描法获取笔尖坐标。实验结果表明, 该方法具有较高的点读坐标提取精度, 解决了不同握笔方式的点读坐标获取问题, 减小了光照不均匀的影响。

Abstract:

A coordinate location method in point-reader was proposed based on JSEG algorithm in terms of the color diversity of a point reading book. Firstly, the coordinate system of a book is acquired by using adjacent pixels difference and binary in LUV. Secondly, the JSEG algorithm combining texture and color characteristics is applied to the image segmentation of target image. Finally, the area of a point reading pen is extracted based on its minimum color, the writing hand is distinguished based on curvature of a point reading pen’s nib. Then locating the nib coordinate by row scanning. The experiment results show that the method has high accuracy of the reading coordinate, solves the problem of nib coordinate in different holding pen’s ways and decreases the influence of uneven illumination.