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中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
地理科学与资源研究所 [3]
青藏高原研究所 [1]
新疆生态与地理研究所 [1]
长春光学精密机械与物... [1]
中国科学院大学 [1]
烟台海岸带研究所 [1]
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采集方式
OAI收割 [7]
iSwitch采集 [1]
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浏览/检索结果:
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Monitoring drought dynamics in China using Optimized Meteorological Drought Index (OMDI) based on remote sensing data sets
期刊论文
OAI收割
JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2021, 卷号: 292, 页码: 14
作者:
Wei, Wei
;
Zhang, Jing
;
Zhou, Junju
;
Zhou, Liang
;
Xie, Binbin
|
收藏
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浏览/下载:117/0
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提交时间:2021/08/19
Optimized meteorological drought index
Evolution dynamics
Remote sensing data sets
Constrained optimization method
China
Local Adaptive Calibration of the Satellite-Derived Surface Incident Shortwave Radiation Product Using Smoothing Spline
期刊论文
OAI收割
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2016, 卷号: 54, 期号: 2, 页码: 1156-1169
作者:
Chen, ZQ (Chen, Zhuoqi)
;
Jiang, B (Jiang, Bo)
;
Zhang, XT
;
Liang, SL
;
Zhang, XT (Zhang, Xiaotong)
|
收藏
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浏览/下载:135/0
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提交时间:2017/11/08
Remote-sensing Data
Isccp Data Sets
Solar-radiation
Climate Data
Spatial Interpolation
Complex Terrain
Irradiance
Budget
Top
Model
A variable precision rough set approach to the remote sensing land use/cover classification
期刊论文
iSwitch采集
Computers & geosciences, 2010, 卷号: 36, 期号: 12, 页码: 1466-1473
作者:
Pan, Xin
;
Zhang, Shuqing
;
Zhang, Huaiqing
;
Na, Xiaodong
;
Li, Xiaofeng
收藏
|
浏览/下载:36/0
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提交时间:2019/05/10
Remote sensing classification
Knowledge discovery
Overlapping data
Variable precision rough sets
Vprs
Improvement of urban land use and land cover classification approach in arid areas
会议论文
OAI收割
Proceedings of SPIE - The International Society for Optical Engineering, Image and Signal Processing for Remote Sensing XVI, Toulouse, France, 2010
Qian
;
Jing1
;
2
;
Zhou
;
Qiming1
;
Chen
;
Xi2
收藏
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浏览/下载:36/0
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提交时间:2011/08/23
Arid regions - Image analysis - Image classification - Land use - Landforms - Maximum likelihood - Photography - Pixels - Remote sensing - Signal processing - Aerial Photographs - Arid area - Bare soils - Beijing-1 - Built-up areas - Classification approach - Classification results - Construction materials - Data sets - Discrete elements - Extraction accuracy - Field investigation - High resolution image - Land-cover types - Landsat ETM - Maximum likelihood classifications - Mixed pixel - Multi-sensor data - Object oriented - object-oriented classification method - Object-oriented processing - Spectral characteristics - Stony deserts - Urban areas - Urban change detection - Urban environments - Urban land use
Application of spatio-temporal data mining and knowledge discovery for detection of vegetation degradation: Analysis of time-series remote sensing images using spatial statistics method
会议论文
OAI收割
2010-08-10
Hou,Xi-Yong
;
Han,Lei
;
Gao,Meng
;
Bi,Xiao-Li
;
Zhu,Ming-Ming
|
收藏
|
浏览/下载:19/0
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提交时间:2011/07/22
Coastal Zones
Data Mining
Degradation
Ecosystems
Fuzzy Sets
Image Reconstruction
Linear Regression
Remote Sensing
Research
Time Series Analysis
Rough set-derived measures in image classification accuracy assessment
EI期刊论文
OAI收割
2009
作者:
Feng Xianfeng
;
Ge Yong
收藏
|
浏览/下载:21/0
|
提交时间:2012/06/11
Data acquisition
Fuzzy sets
Image analysis
Image classification
Pixels
Remote sensing
Enhancing forest carbon sequestration in China: Toward an integration of scientific and socio-economic perspectives
SCI/SSCI论文
OAI收割
2007
作者:
Pan J.
收藏
|
浏览/下载:26/0
|
提交时间:2012/06/08
carbon sequestration
China's forests
integrated assessment
remote
sensing
leaf-area index
remote-sensing inputs
optical measurements
land
biosphere
canada forests
data sets
satellite
model
products
storage
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:33/0
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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.
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