中国科学院机构知识库网格
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A Fast and Accurate Spatial Target Snapping Method for 3D Scene Modeling and Mapping in Mobile Augmented Reality 期刊论文  OAI收割
ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION, 2022, 卷号: 11, 期号: 1, 页码: 25
作者:  
Huang, Kejia;  Wang, Chenliang;  Liu, Runying;  Chen, Guoxiong
  |  收藏  |  浏览/下载:44/0  |  提交时间:2022/09/21
A Fast and Accurate Spatial Target Snapping Method for 3D Scene Modeling and Mapping in Mobile Augmented Reality 期刊论文  OAI收割
ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION, 2022, 卷号: 11, 期号: 1, 页码: 25
作者:  
Huang, Kejia;  Wang, Chenliang;  Liu, Runying;  Chen, Guoxiong
  |  收藏  |  浏览/下载:37/0  |  提交时间:2022/09/21
Focal beam analysis for 3D acquisition geometries in complex media with GPU implementation 期刊论文  OAI收割
COMPUTERS & GEOSCIENCES, 2018, 卷号: 118, 页码: 39-51
作者:  
Su, Jun;  Fu, Li-Yun;  Wei, Wei;  Hu, Junhua;  Sun, Weijia
  |  收藏  |  浏览/下载:43/0  |  提交时间:2018/09/26
Real-time restoration for motion-blurred color images by multichannel combination processing (EI CONFERENCE) 会议论文  OAI收割
1st International Workshop on Education Technology and Computer Science, ETCS 2009, March 7, 2009 - March 8, 2009, Wuhan, Hubei, China
作者:  
Sun H.;  Sun H.;  Li S.
收藏  |  浏览/下载:43/0  |  提交时间:2013/03/25
A fast algorithm is proposed to restore the color images  degraded in a deterministic way by motion- blurred  by multichannel combination processing. Based on the color space conversion model  the point spread functions of the image motion on each plane of YUV422 image can be achieved. The U  V plane of YUV422 images are combined to form a new UV plane which has the same size as Y plane. Then  the Y  UV plane are packed into a two dimensional complex array which can be transformed directly by FFT and result a composite frequency spectrum. Wiener filter is applied to filter Y  UV spectrums separated from the composite spectra. On Graphics Processing Unit (GPU) platform  the proposed algorithm can restore a 1024x1024 24-bit motion-blurred color image in 7.95ms  and the PSNR of the restored image is 27.12 which reveals a good restoration performance. 2009 IEEE.