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Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共11条,第1-10条 帮助

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A High-Quality Adaptive Video Reconstruction Optimization Method Based on Compressed Sensing 期刊论文  OAI收割
CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES, 2023, 卷号: 137, 期号: 1, 页码: 363-383
作者:  
Zhang, Yanjun;  He, Yongqiang;  Zhang, Jingbo;  Zhao, Yaru;  Cui, Zhihua
  |  收藏  |  浏览/下载:24/0  |  提交时间:2023/11/17
Detecting Compressed Deepfake Videos in Social Networks Using Frame-Temporality Two-Stream Convolutional Network 期刊论文  OAI收割
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 2022, 卷号: 32, 期号: 3, 页码: 1089-1102
作者:  
Hu, Juan;  Liao, Xin;  Wang, Wei;  Qin, Zheng
  |  收藏  |  浏览/下载:42/0  |  提交时间:2022/06/06
Which Information Frame is Best for Reporting News on the COVID-19 Pandemic? An Online Questionnaire Study in China 期刊论文  OAI收割
PSYCHOLOGY RESEARCH AND BEHAVIOR MANAGEMENT, 2021, 卷号: 14, 页码: 563-574
作者:  
Kuang, Yi;  Xu, Ming-Xing;  Yang, Shu-Wen;  Ding, Yang;  Zheng, Rui
  |  收藏  |  浏览/下载:23/0  |  提交时间:2021/06/21
An FPGA-Based Ultra-High-Speed Object Detection Algorithm with Multi-Frame Information Fusion 期刊论文  OAI收割
SENSORS, 2019, 卷号: 19, 期号: 17, 页码: 16
作者:  
Long, Xianlei;  Hu, Shenhua;  Hu, Yiming;  Gu, Qingyi;  Ishii, Idaku
  |  收藏  |  浏览/下载:78/0  |  提交时间:2019/12/16
Three-dimensional object recognition using an extensible local surface descriptor 期刊论文  OAI收割
OPTICAL ENGINEERING, 2017, 卷号: 56, 期号: 12, 页码: 13
作者:  
Lu, Rongrong;  Zhu, Feng;  Wu, Qingxiao;  Hao, Yingming
  |  收藏  |  浏览/下载:17/0  |  提交时间:2021/02/02
Three-dimensional object recognition using an extensible local surface descriptor 期刊论文  OAI收割
OPTICAL ENGINEERING, 2017, 卷号: 56, 期号: 12, 页码: 1-13
作者:  
Wu QX(吴清潇);  Zhu F(朱枫);  Lu RR(鲁荣荣);  Hao YM(郝颖明)
  |  收藏  |  浏览/下载:26/0  |  提交时间:2018/02/04
基于多模态关联分析的新闻视频标注与检索 学位论文  OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院大学, 2012
作者:  
张师林
收藏  |  浏览/下载:100/0  |  提交时间:2015/09/02
Image mosaic technique based on the information of edge (EI CONFERENCE) 会议论文  OAI收割
2012 3rd International Conference on Digital Manufacturing and Automation, ICDMA 2012, July 31, 2012 - August 2, 2012, Guilin, Guangxi, China
作者:  
Wang Y.-Q.
收藏  |  浏览/下载:35/0  |  提交时间:2013/03/25
Image mosaic is an important branch in the field of image processing. This paper designs and realizes an image mosaic technique based on the information of edge. The technology is suitable for engineering application. First of all  two images of the adjoining frames are processed by convolution operation  get the edge images. And then we cut edge image into pieces and compute their spatial frequency. According to the value of the spatial frequency select reasonable registration model group. We compute correlation strength and the value of movement offset which are the model group and the current frame edge image. We can complete image mosaic by them. We use video sequence which of the resolution is 1024 * 768 do the experiment. The results show that the method has good effect and strong adaptability. Algorithm is high efficiency which running time is 24 ms. It is suitable for real-time processing requirements of the application. This method is an effective mosaic technique which is suitable for engineering application. 2012 IEEE.  
Displacement estimation by the phase-shiftings of fourier transform in present white noise (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
收藏  |  浏览/下载:29/0  |  提交时间:2013/03/25
Displacement estimation is a fundamental problem in Real-time video image processing. It can be typically approached by theories based on features in spatial domain. This paper presents an algorithm which improves the theory for estimating the moving object's displacement in spatial domain by its Fourier transform frequency spectrum. Because of the characters of Fourier transform  the result is based on all the features in the image. Utilizing shift theorem of Fourier transform and auto-registration  the algorithm employs the phase spectrum difference in polar coordinate of two frame images sequence with the moving target1  2. The method needn't transform frequency spectrum to spatial domain after calculation comparing with the traditional algorithm which has to search Direc peak  and it reduces processing time. Since the technique proposed uses all the image information  including all the white noise in the image especially  and it's hard to overcome the aliasing from noises  but the technique can be an effective way to analyze the result in little white noise by the different characters between high and low frequency bands. It can give the displacement of moving target within 1 pixel of accuracy. Experimental evidence of this performance is presented  and the mathematical reasons behind these characteristics are explained in depth. It is proved that the algorithm is fast and simple and can be used in image tracking and video image processing.  
A deep-space trail forecast method based on the enlargement of field of view (EI CONFERENCE) 会议论文  OAI收割
16th International Conference on Artificial Reality and Telexistence - Workshops, ICAT 2006, November 29, 2006 - December 1, 2006, Hangzhou, China
Han Q.; Yao Z.; Zhu M.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
During the procedure of target tracing  lots of stars will cross the field of view. These stars will disturb the procedure and  the precision of system will be degraded. At the same time  because the optical surveillance system is limited by environment  the targets are often covered by clouds. The above situations will seriously degrade the system's robustness  and once the target is disappeared  the traditional system can't track the target again. Traditional forecast methods merely use coder information  so the precision is low. In order to upgrade the precision  we combine the coder information and the missdistance to forecast the next frame target position. The method is based on field range enlargement. Proved by practical experiments  this method can effectively improve the robustness of the target tracking system. 2006 IEEE.