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The Multiple Perspective Response of Vegetation to Drought on the Qinghai-Tibetan Plateau 期刊论文  OAI收割
REMOTE SENSING, 2023, 卷号: 15, 期号: 4, 页码: 902
作者:  
Zhu, Yuying;  Zhang, Huamin;  Ding, Mingjun;  Li, Lanhui;  Zhang, Yili
  |  收藏  |  浏览/下载:10/0  |  提交时间:2024/01/04
Biotic and abiotic controls in determining exceedingly variable responses of ecosystem functions to extreme seasonal precipitation in a mesophytic alpine grassland 期刊论文  OAI收割
AGRICULTURAL AND FOREST METEOROLOGY, 2016, 卷号: 228, 页码: 180-190
作者:  
Sun, Geng;  Wang, Zhiyuan;  Zhu-Barker, Xia;  Zhang, Nannan;  Wu, Ning
收藏  |  浏览/下载:251/0  |  提交时间:2016/10/24
Biotic and abiotic controls in determining exceedingly variable responses of ecosystem functions to extreme seasonal precipitation in a mesophytic alpine grassland 期刊论文  OAI收割
AGRICULTURAL AND FOREST METEOROLOGY, 2016, 卷号: 228, 页码: 180-190
作者:  
Sun, G;  Wang, ZY;  Zhu-Barker, X;  Zhang, NN;  Wu, N
  |  收藏  |  浏览/下载:118/0  |  提交时间:2017/11/09
Image compression algorithm of high-speed SPIHT for aerial applications (EI CONFERENCE) 会议论文  OAI收割
2011 IEEE 3rd International Conference on Communication Software and Networks, ICCSN 2011, May 27, 2011 - May 29, 2011, Xi'an, China
作者:  
Zhang K.;  Zhang K.;  Zhang K.;  Zhang K.
收藏  |  浏览/下载:39/0  |  提交时间:2013/03/25
SPIHT and NLS (Not List SPIHT) are efficient compression algorithms  but the algorithms application is limited by the shortcomings of the poor error resistance and slow compression speed in the aviation and other areas requiring high-speed compression. In this paper  the error resilience and the compression speed are improved. The remote sensing images are decomposed by Le Gall5/3 wavelet  and wavelet coefficients are indexed  scanned and allocated by the means of family blocks. The bit-plane importance is predicted by bitwise OR  so the N bit-planes can be encoded at the same time. Compared with the SPIHT algorithm  this modified algorithm is easy implemented by hardware  and the compression speed is improved. The PSNR of reconstructed images encoded by high-speed SPIHT is slightly lower than SPIHT at rate 1bpp  but the speed is 4.5-6 times faster than SPIHT encoding process. The algorithm meets the high speed and reliability requirements of aerial applications. 2011 IEEE.