In the field of line drawing vectorization,searches about line vectorization are more important than other factors,such as vectorization of arc and ellipse.

• 目的提高直线识别的准确度和精度；更好地解决线图形的直线矢量化中存在的不足；如细、斜线矢量化效果差；直线易断裂；端点定位不准等.