机构

• 地质与地球物理研究所 [2]
• 长春光学精密机械与物... [1]
• 西安光学精密机械研究... [1]

采集方式

• OAI收割 [4]

内容类型

• 期刊论文 [3]
• 会议论文 [1]

发表日期

• 2017 [1]
• 2015 [1]
• 2011 [1]
• 2010 [1]

学科主题

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Least-squares reverse time migration based on unstructured gird 期刊论文  OAI收割 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2017, 卷号: 60, 期号: 3, 页码: 1053-1061 作者:  Yang Kai;  Zhang Jian-Feng   |  收藏  |  浏览/下载：19/0  |  提交时间：2017/11/16 Least-squares Reverse Time Migration  Unstructured Gird  Grid Method  Laplacian Filter   Adaptive nonuniformity correction algorithm based on multiscale temporal moment matching 期刊论文  OAI收割 journal of infrared and millimeter waves, 2015, 卷号: 34, 期号: 4, 页码: 401-405 作者:  Leng Han-Bing;  Hu Bing-Liang;  Zhou Zuo-Feng;  Tang Li-Nao;  Zhang Jian 收藏  |  浏览/下载：24/0  |  提交时间：2015/11/02 nonuniformity correction  temporal high-pass filter  multiscale temporal moment matching  Laplacian pyramid  ghosting artifacts   Adaptive Wiener filtering with Gaussian fitted point spread function in image restoration (EI CONFERENCE) 会议论文  OAI收割 2011 IEEE 2nd International Conference on Software Engineering and Service Science, ICSESS 2011, July 15, 2011 - July 17, 2011, Beijing, China 作者:  Yang L.;  Zhang X.;  Zhang X.;  Zhang X.;  Yang L. 收藏  |  浏览/下载：44/0  |  提交时间：2013/03/25 In the imaging process of the space remote sensing camera  there was degradation phenomenon in the acquired images. In order to reduce the image blur caused by the degradation  the remote sensing images were restored to give prominence to the characteristic objects in the images. First  the frequency-domain notch filter was adopted to remove strip noises in the images. Then using the ground characters with the knife-edge shape in the images  the point spread function of the imaging system was estimated. In order to improve the accuracy  the estimated point spread function was corrected with Gaussian fitting method. Finally  the images were restored using the adaptive Wiener filtering with the fitted point spread function. Experimental results of the real remote sensing images showed that almost all strip noises in the images were eliminated. After the denoised images were restored  its variance and its gray mean gradient increased  also its laplacian gradient increased. Restoration with Gaussian fitted point spread function is beneficial to interpreting and analyzing the remote sensing images. After restoration  the blur phenomenon of the images is reduced. The characters are highlighted  and the visual effect of the images is clearer. 2011 IEEE.   The problems of denoise and storage in seismic reverse time migration 期刊论文  OAI收割 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2010, 卷号: 53, 期号: 9, 页码: 2171-2180 作者:  Liu Hong-Wei;  Liu Hong;  Zou Zhen;  Cui Yong-Fu   |  收藏  |  浏览/下载：19/0  |  提交时间：2018/09/26 Low frequency imaging noise  Laplacian filter  Random boundary  Data communication  GPU realization