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Received:April 16, 2011 Revised:May 30, 2011
Received:April 16, 2011 Revised:May 30, 2011
中文摘要: 研究了彩色自蛇模型的形成过程,对遥感TM 图像进行了后处理放大处理,采用最邻近点插值、双线性插值、三次样条插值、双立方插值、双二次插值。针对插值放大后的图像的边缘出现锯齿化和模糊化问题,由于彩色自蛇模型本身不仅具有边缘锐化功能,它可以消除边缘锯齿化和边缘模糊化问题,而且具有去噪的能力。采用彩色自蛇模型进行后处理,并对处理后的残余斑点进行研究,结果采用了中值滤波的方式取得更好的效果,并对含噪的遥感图像也有较好的放大效果,实验结果证明该方法适于遥感图像的放大处理。
Abstract:This paper extends the nonlinear partial differential method in the field of the remote sensing image to magnification the scope of application, and research the post-processing on the remote sensing TM image magnifying using nearest neighbor interpolation, bilinear interpolation, cubic spline interpolation, cubic interpolation, biquad interpolation. For the reason that enlarge image causes jagging and fuzzying using interpolate algorithm, we address the model of color self-snake which has not only the function of sharpening edge and eliminating jagged edges but also the function of the direction of diffusion, that is to say the ability of denoising. In addition, the residual spots generated by post-processing was put on median filtering method then achieved better magnifying result, also for the remote sensing images which contain noise. Experiment shows the method is suitable for amplification about remote sensing image processing.
keywords: remote sensing image magnification interpolation color self-snake model nonlinear diffusion edge-enhancement median filter
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基金项目:国家自然科学基金(410012227);教育部博士点基金(200803350017);浙江省自然科学基金(Y5090130)
引用文本：
赵四能,张丰,杜震洪,刘仁义,刘南.结合中值滤波的彩色自蛇模型在遥感图像放大的研究.计算机系统应用,2011,20(12):41-45,54
ZHAO Si-Neng,ZHANG Feng,DU Zhen-Hong,LIU Ren-Yi,LIU Nan.Color Self-Snake Model with Median Filter in Remote Sensing Image to Magnification.COMPUTER SYSTEMS APPLICATIONS,2011,20(12):41-45,54
赵四能,张丰,杜震洪,刘仁义,刘南.结合中值滤波的彩色自蛇模型在遥感图像放大的研究.计算机系统应用,2011,20(12):41-45,54
ZHAO Si-Neng,ZHANG Feng,DU Zhen-Hong,LIU Ren-Yi,LIU Nan.Color Self-Snake Model with Median Filter in Remote Sensing Image to Magnification.COMPUTER SYSTEMS APPLICATIONS,2011,20(12):41-45,54
