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浏览/检索结果: 共20条，第1-10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 A multiscale spatio-temporal framework to regionalize annual precipitation using k-means and self-organizing map technique 期刊论文  OAI收割 JOURNAL OF MOUNTAIN SCIENCE, 2018, 卷号: 15, 期号: 7, 页码: 1481-1497 作者:  Roushangar, Kiyoumars;  Alizadeh, Farhad   |  收藏  |  浏览/下载：16/0  |  提交时间：2020/09/29 Precipitation  Discrete wavelet transform (DWT)  k-means  Self Organizing Map (SOM)  Iran   Dither modulation of significant amplitude difference for wavelet based robust watermarking 期刊论文  OAI收割 Neurocomputing, 2015, 卷号: 166, 期号: 1, 页码: 404-415 作者:  ChunLei Li;  Zhaoxiang Zhang;  Yunhong Wang;  Bin Ma;  Di Huang   |  收藏  |  浏览/下载：22/0  |  提交时间：2017/02/09 Significant Amplitude Difference  Dwt  Robust Watermarking  Dither Modulation   一种适于空间多光谱TDICCD图像压缩算法 期刊论文  OAI收割 光谱学与光谱分析, 2013, 期号: 03, 页码: 844-849 作者:  金龙旭;  李国宁;  韩双丽 收藏  |  浏览/下载：31/0  |  提交时间：2014/03/07 多光谱TDICCD  图像压缩  方向自适应提升DWT   基于DSP的嵌入式实时图像增强系统 期刊论文  OAI收割 计算机测量与控制, 2013, 期号: 02, 页码: 529-531 作者:  刘春香;  曲利新;  马天波;  李宁 收藏  |  浏览/下载：25/0  |  提交时间：2014/03/07 实时图像增强  基于行的2D-DWT  DWT提升算法的定点实现方法  DM642   Secure Multimodal Biometric Authentication with Wavelet Quantization Based Fingerprint Watermarking 期刊论文  OAI收割 Multimedia Tools and Applications, 2013, 卷号: 72, 期号: 1, 页码: 637-666 作者:  Bin Ma;  Yunhong Wang;  Chunlei Li;  Zhaoxiang Zhang;  Di Huang   |  收藏  |  浏览/下载：21/0  |  提交时间：2017/02/09 Biometrics  Digital Watermarking  Dwt  Dither Modulation   A Robust Watermarking Scheme based on Dual Quantization of Wavelet Significant Difference 会议论文  OAI收割 Singapore, Singapore, 4-6 December 2012 作者:  Bin Ma;  Yunhong Wang;  Chunlei Li;  Zhaoxiang Zhang;  Di Huang   |  收藏  |  浏览/下载：22/0  |  提交时间：2017/02/09 Biometric Authentication  Digital Watermarking  Dwt  Qim   Image coding using wavelet-based compressive sampling (EI CONFERENCE) 会议论文  OAI收割 2012 5th International Symposium on Computational Intelligence and Design, ISCID 2012, October 28, 2012 - October 29, 2012, Hangzhou, China 作者:  Li J.;  Li J.;  Li J. 收藏  |  浏览/下载：43/0  |  提交时间：2013/03/25 In this paper  we proposed a novel coding scheme is proposed using wavelet-based CS framework for nature image. First  two-dimension discrete wavelet transform (DWT) is applied to a nature image for sparse representation. After multi-scale DWT  the low-frequency sub-band and high-frequency sub-bands are re-sampled separately. According to the statistical dependences among DWT coefficients  we allocate different measurements to low- and high-frequency component. Then  the measurements samples can be quantized. The quantize samples are entropy coded and forward correct coding (FEC). Finally  the compressed streams are transmitted. At the decoder  one can simply reconstruct the image via l1 minimization. Experimental results show that the proposed wavelet-based CS scheme achieves better compression performance against the relevant existing solutions.   DWT-based digital image watermarking algorithm (EI CONFERENCE) 会议论文  OAI收割 IEEE 2011 10th International Conference on Electronic Measurement and Instruments, ICEMI 2011, August 16, 2011 - August 18, 2011, Chengdu, China 作者:  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y. 收藏  |  浏览/下载：13/0  |  提交时间：2013/03/25 This paper presents a digital watermarking algorithm based on the DWT coefficients. This algorithm does not change any information of the original image  but combines the information of low frequency DWT coefficients and the watermark image. The combination is the key  which is used to extract the watermark. When we need to extract the watermark  we can obtain it by divide the key. Because the algorithm does not change any information of the original image  it will not affect the quality of the original image. Experimental results show that the proposed algorithm is robust and secure against a wide range of image processing operations. 2011 IEEE.   Hyperspectral Image Compression Method Based on Spectral Statistical Correlation 会议论文  OAI收割 Proceedings of the 2009 2nd International Congress on Image and Signal Processing, Vols 1-9, New York Wang, Wenjie; Zhao, Zhongming; Zhu, Haiqing 收藏  |  浏览/下载：16/0  |  提交时间：2014/12/07 spectral correlation  AKLT  2DWT  2DSPECK  HIERARCHICAL TREES  WAVELET  EFFICIENT  CODER   面向媒体应用的处理器体系结构研究与设计 学位论文  OAI收割 博士, 声学研究所: 中国科学院声学研究所, 2008 刘鸿瑾 收藏  |  浏览/下载：21/0  |  提交时间：2011/05/07 体系结构  媒体处理  设计空间搜索  数据通路  浮点乘法  DWT