中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共14条,第1-10条 帮助

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Subband fusion of complex spectrogram for fake speech detection 期刊论文  OAI收割
SPEECH COMMUNICATION, 2023, 卷号: 155, 页码: 8
作者:  
Fan, Cunhang;  Xue, Jun;  Dong, Shunbo;  Ding, Mingming;  Yi, Jiangyan
  |  收藏  |  浏览/下载:22/0  |  提交时间:2024/03/26
Texture Classification and Retrieval Using Shearlets and Linear Regression 期刊论文  OAI收割
ieee transactions on cybernetics, 2015, 卷号: 45, 期号: 3, 页码: 358-369
作者:  
Dong, Yongsheng;  Tao, Dacheng;  Li, Xuelong;  Ma, Jinwen;  Pu, Jiexin
收藏  |  浏览/下载:23/0  |  提交时间:2015/07/15
Spin dependence of electron effective masses in InGaAs/InAlAs quantum well 期刊论文  OAI收割
journal of applied physics, 2011, 卷号: 110, 期号: 6, 页码: 63707
Wei LM; Gao KH; Liu XZ; Zhou WZ; Cui LJ; Zeng YP; Yu G; Yang R; Lin T; Shang LY; Guo SL; Dai N; Chu JH; Austing DG
收藏  |  浏览/下载:33/0  |  提交时间:2012/01/06
Anomalous shift of the beating nodes in illumination-controlled In1-xGaxAs/In1-yAlyAs two-dimensional electron gases with strong spin-orbit interaction 期刊论文  OAI收割
physical review b, 2010, 卷号: 81, 期号: 19, 页码: art. no. 195312
Zhou WZ (Zhou W. Z.); Lin T (Lin T.); Shang LY (Shang L. Y.); Yu G (Yu G.); Gao KH (Gao K. H.); Zhou YM (Zhou Y. M.); Wei LM (Wei L. M.); Cui LJ (Cui L. J.); Zeng YP (Zeng Y. P.); Guo SL (Guo S. L.); Chu JH (Chu J. H.)
收藏  |  浏览/下载:199/33  |  提交时间:2010/06/18
半导体量子阱中传播效应对子带间拉比振荡的影响 期刊论文  OAI收割
Chin. Opt. Lett., 2008, 卷号: 6, 期号: 9, 页码: 689, 692
周旭升; 崔妮; 祖继锋; 龚尚庆
收藏  |  浏览/下载:1475/210  |  提交时间:2009/09/18
Subband coupling aware rate allocation for spatial scalability in 3-D wavelet video coding 期刊论文  OAI收割
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 2007, 卷号: 17, 期号: 10, 页码: 1311-1324
作者:  
Xiong, Ruiqin;  Xu, Jizheng;  Wu, Feng;  Li, Shipeng;  Zhang, Ya-Qin
  |  收藏  |  浏览/下载:26/0  |  提交时间:2019/12/16
Compression of remote sensing image based on Listless Zerotree Coding and DPCM (EI CONFERENCE) 会议论文  OAI收割
ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
Chen S.-L.; Huang L.-Q.
收藏  |  浏览/下载:32/0  |  提交时间:2013/03/25
The data quantity of remote sensing image is very large. Furthermore  the lowest frequency subband contains the main energy of original image and reflects the coarse of original image after remote sensing image is transformed by wavelet  so it is very important to the reconstructed image. Therefore a hybrid image compression method based on Listless Zerotree Coding (LZC) and DPCM is presented  namely  the lowest frequency subband is compressed by DPCM and others are compressed by LZC. LZC is a kind of zerotree coding algorithm for hardware implementation  which is based on SPIHT and substitutes two significant bit maps for three lists in SPIHT algorithm. Thereby LZC significantly reduces the memory requirement and complexity during encoding and decoding procedure. But LZC doesn't recognize the significance of grandchild sets  so the PSNR values of LZC are lower than SPIHT's and the compression speed drops. It is improved by adding a significant bit map that recognizes the significance of grandchild sets. A comparison reveals that the PSNR results of the hybrid compression method are 2 dB higher than those of LZC  and the compression speed is also improved.  
Charge-density and spin-density excitations in a two-dimensional electron gas with Rashba spin-orbit coupling 期刊论文  OAI收割
physical review b, 2006, 卷号: 74, 期号: 16, 页码: art.no.165315
Xu LJ (Xu L. J.); Wu XG (Wu X. G.)
收藏  |  浏览/下载:48/0  |  提交时间:2010/04/11
Theoretical analysis of gate voltage-controlled subband states in an alxga1-xn/gan heterostructure 期刊论文  iSwitch采集
Physica e-low-dimensional systems & nanostructures, 2005, 卷号: 28, 期号: 3, 页码: 230-236
作者:  
Han, XX;  Li, JM;  Wu, JJ;  Cong, GW;  Liu, XL
收藏  |  浏览/下载:21/0  |  提交时间:2019/05/12
Investigation on ingaas/inalas quantum cascade lasers 期刊论文  iSwitch采集
Journal of infrared and millimeter waves, 2001, 卷号: 20, 期号: 1, 页码: 41-43
作者:  
Zhang, QS;  Liu, FQ;  Zhang, YZ;  Wang, ZG;  Gao, HH
收藏  |  浏览/下载:28/0  |  提交时间:2019/05/12