CAJ | 학술논문

针对现有的矩形检测方法存在计算量大、检测精度不足等问题，提出基于 Radon变换（Ra-don Transform，RT）与灰度投影积分极值（Gray Proj ection Integral Extreme Value，GPIEV）方法相结合的矩形快速检测方法，该方法运用Radon变换在小角度搜索范围内对矩形图像进行快速准确的旋转校正，随后对校正后的图像的垂直和水平方向使用灰度投影积分极值方法确定矩形2对平行直线位置，完成矩形的角度快速校正与重构。该检测方法利用了 Radon变换对直线倾斜角度检测的准确性和灰度投影积分极值方法检测直线的准确性，弥补了这两种方法各自的不足。实验结果表明，该检测方法可应用在矩形等规则平面的几何图形检测识别中，检测精度高，且检测速度快。
침대현유적구형검측방법존재계산량대、검측정도불족등문제，제출기우 Radon변환（Ra-don Transform，RT）여회도투영적분겁치（Gray Proj ection Integral Extreme Value，GPIEV）방법상결합적구형쾌속검측방법，해방법운용Radon변환재소각도수색범위내대구형도상진행쾌속준학적선전교정，수후대교정후적도상적수직화수평방향사용회도투영적분겁치방법학정구형2대평행직선위치，완성구형적각도쾌속교정여중구。해검측방법이용료 Radon변환대직선경사각도검측적준학성화회도투영적분겁치방법검측직선적준학성，미보료저량충방법각자적불족。실험결과표명，해검측방법가응용재구형등규칙평면적궤하도형검측식별중，검측정도고，차검측속도쾌。
In view of most existing detection methods with various disadvantages,such as large calculating quantity and low detection precision,the present paper proposed a rapid detection method which integrates Radon Transformation (RT)and Gray Proj ection Integral Extreme Val-ue method (GPIEV).Firstly,Radon transformation is used to quickly and accurately correct a rectangular image by rotating it within a small angle range.Secondly,the positions of the parallel lines in the collected image are determined by applying Gray Proj ection Integral Extreme Value method along the vertical and horizontal directions of the image.In this way,the angle correction and reconstruction of the rectangular image can be rapidly achieved.This detection method makes full use of the accuracy of Radon transformation and Gray Proj ection Integral Extreme Value method in detecting line and its inclination angle,and makes up for their deficiencies.Experimen-tal results show that this detection method can be used to detect and recognize rectangular and other regular plane geometric figures with high accuracy and fast speed.