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HJ-1B CCD2与SPOT4 HRVIR数据在森林地上生物量反演中的比较分析 期刊论文  OAI收割
武汉大学学报(信息科学版), 2016, 卷号: 41, 期号: 11, 页码: 1483-1490
作者:  
靳华安;  李爱农;  边金虎;  雷光斌
收藏  |  浏览/下载:30/0  |  提交时间:2016/11/26
Building a Data Set over 12 Globally Distributed Sites to Support the Development of Agriculture Monitoring Applications with Sentinel-2 期刊论文  OAI收割
REMOTE SENSING, 2015, 卷号: 7, 期号: 12, 页码: 395-413
作者:  
Bontemps, Sophie;  Arias, Marcela;  Cara, Cosmin;  Dedieu, Gerard;  Guzzonato, Eric
收藏  |  浏览/下载:40/0  |  提交时间:2016/04/20
Comparative analysis of HJ-1, SPOT, and TM data for leaf area index estimation in a mountainous area 会议论文  OAI收割
IEEE International Geoscience and Remote Sensing Symposium, Melbourne, 2013
作者:  
Jin HA(靳华安);  Li AN(李爱农);  Bian JH(边金虎)
收藏  |  浏览/下载:20/0  |  提交时间:2013/12/23
Comparison of Aster and SPOT4 Modified Soil Adjusted Vegetation Index Data over Northwestern China 会议论文  OAI收割
International Conference on Image Processing and Pattern Recognition in Industrial Engineering
Yu Rong; Cai Bofeng; Wen Qinke
收藏  |  浏览/下载:17/0  |  提交时间:2014/12/07
A new spaceborne compression approach for remote sensing imagery (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
作者:  
Xu S.
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
After analyzing advantages and disadvantages of these typical encoding methods: SPIHT and VQ  a "DWT+MRLE" approach for spaceborne data compression was proposed in this paper. This approach includes two steps: Discrete Wavelet Transform (DWT) and Modified Run Length Encoding (MRLE). The former used CDF9/7 biorthogonal wavelet filters to powerfully get rid of correlation between pixels in imagery. The later put enlightening information into the lowest bit of some key-position transform coefficients. Consequently  CDF9/7 and MRLE together make hardware platform remain high real-time capability  and help reconstructed images keep good fidelity with PSNR being about 40dB  compared with the original ones. Comparison between experimentations on SPOT4's low-spatial-resolution (10m) imagery and Ikonos2's high-spatial-resolution (1m) imagery  shows this "DWT+MRLE" method having better performance for remote-sensed imagery  especially those of higher resolution. Although inferior to 8:1  Compression Ration (CR) here near 5:1 is greater than France SPOT5's 3:1 and American Ikonos2's 11:2.6 on-board data compression. More important  this method having less computational amount is good for spaceborne capability of real time. The consumed time of different image size is also presented in this paper  based on TI TMSC6416 DSP chip with 600MHz CPU cycle clock.