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

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Experimental and Numerical Simulations on the Mechanical Characteristics of Soil-Rock Mixture in Uniaxial Compression 期刊论文  OAI收割
APPLIED SCIENCES-BASEL, 2024, 卷号: 14, 期号: 22, 页码: 20
作者:  
Zhang, Zhenping;  Fu, Xiaodong;  Sheng, Qian;  Wang, Shuo;  Fang, Yuwei
  |  收藏  |  浏览/下载:3/0  |  提交时间:2025/06/27
Heterogeneity induced strain localization in block-in-matrix-soils subjected to uniaxial loading using real-time CT scanning 期刊论文  OAI收割
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING, 2023, 卷号: 15, 期号: 8, 页码: 1951-1959
作者:  
Wu, Yanfang;  Li, Xiao;  Zhang, Luqing;  Qi, Shengwen;  Zhou, Jian
  |  收藏  |  浏览/下载:26/0  |  提交时间:2023/12/29
PoW-BC: A PoW Consensus Protocol Based on Block Compression 期刊论文  OAI收割
KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS, 2021, 卷号: 15
作者:  
Yu, Bin;  Li, Xiaofeng;  Zhao, He
  |  收藏  |  浏览/下载:82/0  |  提交时间:2021/06/15
Local-binarized very deep residual network for visual categorization 期刊论文  OAI收割
NEUROCOMPUTING, 2021, 卷号: 430, 页码: 82-93
作者:  
Liu, Xuejing;  Li, Liang;  Wang, Shuhui;  Zha, Zheng-Jun;  Huang, Qingming
  |  收藏  |  浏览/下载:43/0  |  提交时间:2021/12/01
Strain-softening failure mode after the post-peak as a unique mechanism of ruptures in a frozen soil-rock mixture 期刊论文  OAI收割
ENGINEERING GEOLOGY, 2020, 卷号: 274, 页码: 11
作者:  
Li, Zhiqing;  Hu, Feng;  Qi, Shengwen;  Hu, Ruilin
  |  收藏  |  浏览/下载:115/0  |  提交时间:2020/09/28
Evaluation of BAQ on Tiangong-2 interferometric imaging radar altimeter data compression 会议论文  OAI收割
Poznan, Poland, May 14, 2018 - May 17, 2018
作者:  
Shi, Xiaojin;  Zhang, Yunhua;  Dong, Xiao
  |  收藏  |  浏览/下载:32/0  |  提交时间:2018/09/06
Study of unequal error protection method based on JPEG2000 for surveyingmapping image (EI CONFERENCE) 会议论文  OAI收割
International Conference on Computer Science and Software Engineering, CSSE 2008, December 12, 2008 - December 14, 2008, Wuhan, Hubei, China
Yao Q.; Cao M.
收藏  |  浏览/下载:177/0  |  提交时间:2013/03/25
On aviation mapping  compression image maybe not decode because of wireless transmission interference. UEP(Unequal Error Protection) scheme is put forward about layer and block structure of JPEG2000 image compression method  flexibly enhances local reconfigurable image's quality which is in favor of identifier in the region of interest. 2008 IEEE.  and realizes three degrees UEP of data block  data header  image data via various degrees correction-coding under the condition of obstruct  naked and shade. BCH  RS and Hamming coding are simulated  and image decoding success rate and image's quality are analyzed according to different coding and ROI (Region of Interest) in the Gaussian white noise model and rayleigh fading model. Results shows that the method we putted forward roughly improves decoding success rate  at the same time  almost not increasing bandwidth  
Wavelet-based contourlet coding using SPECK algorithm (EI CONFERENCE) 会议论文  OAI收割
2008 9th International Conference on Signal Processing, ICSP 2008, October 26, 2008 - October 29, 2008, Beijing, China
Xiu-Wei T.; Xi-Feng Z.; Tie-Fu D.
收藏  |  浏览/下载:57/0  |  提交时间:2013/03/25
analysis of all-or-nothing hash functions 期刊论文  OAI收割
Institute of Information Science, 2008, 卷号: 24, 期号: 5, 页码: 1473-1484
Lin Pin; Wu Wenling; Wu Chuankun; Qiu Tian
  |  收藏  |  浏览/下载:21/0  |  提交时间:2010/08/20
Wavelet-fractal based compression of ophthalmic image (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
Xiu-Ying Z.; Lin-Pei Z.
收藏  |  浏览/下载:29/0  |  提交时间:2013/03/25
This study is designed to determine the degree and methods of digital image compression to produce ophthalmic images of sufficient quality for transmission and diagnosis. Fractal based compression techniques  which provide a large compression ratio for grayscale images have been reported in the literature. Fractal coding is based on the fractal theory of iterated transformations. But  it's searching and mapping algorithm cannot address the need of real-time. To improve the real-time performance of the algorithm  we use wavelet transforms to decompose images. The wavelet transform is a natural tool for analyzing fractal block coders since wavelet bases possess the same type of dyadic self-similarity that fractal coders seek to exploit. We propose a method of fractal coding the weighted wavelet subtree. Experimented results show that the improved hybrid image can improve the PSNR of the rebuild image at the same compression ratio.