摘要
针对常规的POCS超分辨率图像重构算法导致的边缘模糊问题,文章分析重建后高分辨率图像边缘模糊形成的原因,提出了基于边缘保持的插值算法,用基于梯度的插值算法来获取POCS的初始值,实验结果表明,该方法能够明显地提高重建图像的边缘质量。
The traditional super-resolution image reconstruction algorithm leads to the blur edge of reconstructed high image. Based on analysis of the reason for leading to the blur edge of high-resolution reconstruction image, a new image interpolation based on gradient is proposed, which keeps much information of the image edge. This new image interpola- tion is used to get the original value of the POCS. The experimental tests indicate that this algorithm could significantly improve the quality of the reconstructed image.
出处
《信息安全与通信保密》
2009年第1期66-68,共3页
Information Security and Communications Privacy
关键词
超分辨率
图像重建
边缘保持
梯度插值
super-resolution
image reconstruction
edge maintenance
gradient interpolation
