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Edge Detection Algorithm of SAR Images with Wedgelet Filter

Edge Detection Algorithm of SAR Images with Wedgelet Filter
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摘要 Based on the analysis of the characteristics of synthetic aperture radar （SAR） images, a new edge detection method is proposed. The wedgelet transform is introduced into the area of SAR image speckle reduction for it can provide a nearly optimal representation for images in the horizon class. The wedgelet filter has good ability in keeping edge and speckle reduction. Then, a ratio edge detector is applied after a process of speckle reduction. The experimental results show that the method outperforms substantially others visually. Based on the analysis of the characteristics of synthetic aperture radar （SAR） images, a new edge detection method is proposed. The wedgelet transform is introduced into the area of SAR image speckle reduction for it can provide a nearly optimal representation for images in the horizon class. The wedgelet filter has good ability in keeping edge and speckle reduction. Then, a ratio edge detector is applied after a process of speckle reduction. The experimental results show that the method outperforms substantially others visually.
作者 任超 吴嗣亮 焦李成
机构地区 School of Information Science and Technology Institute of Intelligent Information Processing
出处 《Journal of Beijing Institute of Technology》 EI CAS 2008年第3期346-350,共5页 北京理工大学学报（英文版）
关键词 edgelet wedgelet edge deteetion ratio edge detector edge thinning edgelet wedgelet edge deteetion ratio edge detector edge thinning
分类号 TN957.52 [电子电信—信号与信息处理]
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参考文献10

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二级参考文献58

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共引文献226

Journal of Beijing Institute of Technology
2008年 第3期

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