【摘要】 针对POCS超分辨率图像重构算法在放大倍数加大时存在边缘振荡效应加剧和计算复杂性上升的问题,提出了一个能同时解决这两个问题的新算法,它将放大过程分步进行,并在每步引入边界自适应约束。实验结果表明,该算法在有效消除边缘振荡效应的同时,极大地提高了超分辨率图像重构的速度。更多还原

【Abstract】 POCS super-resolution algorithms suffer two serious problems as magnification increases,one is the increasing ringing artifacts,the other is the increasing computational complexity. In this paper,a new algorithm is proposed.The principle of the new algorithm is to magnify the low-resolution image progressively,and edge-adaptive constraint is introduced at each step.Experimental results show that the proposed algorithm has got a significant increase of efficiency while reducing the ringing artifacts effectively.更多还原