This paper proposes a method for extracting linear object based on Freeman chain code and Hough transform with the purpose of extracting linear object effectively. After the original image is enhanced and filtered, a method based on the gray-level uniformization is used for region segmentation of image. Then the approach of Freeman chain code is carried out. Finally, the parallel linear structure is detected when Hough transform is used for the data of the chain code. The experiment results show that the proposed algorithm can extract the parallel linear structure of the image effectively, as evidenced by the fact that it showed high efficiency and high accuracy when it was applied to network target recognition in the ZY-3 satellite images.
张国英, 程益钰, 李峰, 宋科科. 资源三号卫星影像中线性目标的检测技术[J]. 国土资源遥感, 2014, 26(2): 33-37.
ZHANG Guoying, CHENG Yiyu, LI Feng, SONG Keke. Technology of linear target detection based on ZY-3 satellite images. REMOTE SENSING FOR LAND & RESOURCES, 2014, 26(2): 33-37.
[1] 陈仁杰,刘利刚,董光昌.图像主特征直线的检测算法[J].中国图象图形学报,2010,15(3):403-408. Chen R J,Liu L G,Dong G C.Detection of principal lines in images[J].Journal of Image and Graphics,2010,15(3):403-408.[2] 安如,冯学智,王慧麟.基于数学形态学的道路遥感影像特征提取及网络分析[J].中国图象图形学报,2003,8(7):798-804. An R,Feng X Z,Wang H L.Road feature extraction from remote sensing classified imagery based on mathematical morphology and analysis of road networks[J].Journal of Image and Graphics,2003,8(7):798-804.[3] 许华荣,王晓栋,方遒.基于B样条曲线模型的结构化道路检测算法[J].自动化学报,2011,37(3):270-275. Xu H R,Wang X D,Fang Q.Structure road detection algorithm based on B-spline curve model[J].Acta Automatica Sinica,2011,37(3):270-275.[4] 王义敏,秦永元.基于区域生长的SAR图像目标检测方法研究[J].计算机应用,2009,29(1):45-46. Wang Y M,Qin Y Y.Target detection in SAR images based on region growing[J].Journal of Computer Applications,2009,29(1):45-46.[5] Mokhtarzdae M,Valadan Zoej M J.Road detection from high-reso- lution satellite images using artificial neural networks[J].International Journal of Applied Earth Observation and Geoinformation,2007,9(1):32-40.[6] Vaddi R S,Boggavarapu L N P,Vankayalapati H D,et al.Contour detection using Freeman chain code and approximation methods for the real-time object detection[J].Asian Journal of Computer Science and Information Technology,2011,1(1):15-17.[7] Shahab W,Hazem A O,Farouq A G.A modified 2D chain code algorithm for object segmentation and contour tracing[J].The International Arab Journal of Information Technology,2009,6(3):250-257.[8] 鲁光泉,许洪国,李一兵.基于链码检测的直线段检测方法[J].计算机工程,2006,32(14):1-3. Lu G Q,Xu H G,Li Y B.Line segment detection based on chain code detection[J].Computer Engineering,2006,32(14):1-3.[9] 雷小奇,王卫星,赖均.一种基于形状特征进行高分辨率遥感影像道路提取方法[J].测绘学报,2009,38(5):457-465. Lei X Q, Wang W X,Lai J.A method of road extraction from high- resolution remote sensing images based on shape features[J].Acta Geodaetica et Cartographica Sinica,2009,38(5):457-465.