CAJ | 학술논문

针对由相机与所摄景物之间发生相对位置移动所导致的图像运动模糊，提出了一种鲁棒的基于单幅运动模糊图像的盲反卷积算法。该方法首先通过预测图像中的较强边缘信息，实现用简单、易于求解的优化问题在傅里叶域中快速、准确地估计出点扩散函数。然后利用得到的点扩散函数，使用基于梯度约束的非盲反卷积算法复原清晰图像，同时采用一种新的边缘保持滤波器-导引滤波来消除噪声并抑制振铃效应。实验结果表明：本文的算法能够快速地从单幅运动模糊图像复原出具有清晰边缘和纹理的高质量图像，并且运算时间不超过20 s。
침대유상궤여소섭경물지간발생상대위치이동소도치적도상운동모호，제출료일충로봉적기우단폭운동모호도상적맹반권적산법。해방법수선통과예측도상중적교강변연신식，실현용간단、역우구해적우화문제재부리협역중쾌속、준학지고계출점확산함수。연후이용득도적점확산함수，사용기우제도약속적비맹반권적산법복원청석도상，동시채용일충신적변연보지려파기-도인려파래소제조성병억제진령효응。실험결과표명：본문적산법능구쾌속지종단폭운동모호도상복원출구유청석변연화문리적고질량도상，병차운산시간불초과20 s。
To modify the image motion blurring induced by the relative position motion between a camera and a subject, a robust blind deconvolution method based on single image motion blurring was proposed .Firstly, the strong edges of a latent image was predicted .By constraining image gradient , the point spread function in frequency domain was estimated fast and robustly by this method .After that , the non-blind deconvolution al-gorithm based on the gradient constrain was used to restore the latent image .Meanwhile , a new edge preser-ving filter-guided filter was used to suppress the ringing and noise .Experiments show that the proposed method can restore a high quality image with clear edges and tissues from single motion blurring image , and the opera-tion time is less than 20 s.