机构

• 遥感与数字地球研究所 [4]
• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [5]

内容类型

• 会议论文 [5]

发表日期

• 2010 [2]
• 2009 [1]
• 2007 [1]
• 2006 [1]

学科主题

筛选

浏览/检索结果: 共5条，第1-5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 The Extraction of Water Information Based on SPOT5 Image Using Object-oriented Method 会议论文  OAI收割 2010 18th International Conference on Geoinformatics, New York Yue, Yujuan; Gong, Jianhua; Wang, Dongchuan 收藏  |  浏览/下载：24/0  |  提交时间：2014/12/07 SPOT5 image  Water extractiong  Object-oriented classification method   Geometric evaluation of SPOT5 image using Rigorous Sensor Model and Simple Polynomial Direct Location Model 会议论文  OAI收割 Sixth International Symposium on Digital Earth: Models, Algorithms, and Virtual Reality, Bellingham Yan, Dongmei; Wang, Fenfei; Kou, Tianyou; Chen, Shirong 收藏  |  浏览/下载：20/0  |  提交时间：2014/12/07 geometric evaluation  Rigorous Sensor Model  Simple Polynomial Direct  Location Model  SPOT5 image   A COMPARISON STUDY ON SPOT5 IMAGE FUSION AND QUALITY ASSESSMENT 会议论文  OAI收割 Geoinformatics 2008 and Joint Conference on Gis and Built Environment: Advanced Spatial Data Models and Analyses, Parts 1 and 2, Bellingham Deng, Biao; Guo, Huadong; Wang, Changlin; Nie, Yueping 收藏  |  浏览/下载：36/0  |  提交时间：2014/12/07 image fusion  remote sensing  fusion quality  criteria  SPOT5  WAVELET TRANSFORM   Application of object-oriented approach in SPOT5 image classification: A case study of interpretation of mudstone in Taiwan - art. no. 67900S 会议论文  OAI收割 Remote Sensing and Gis Data Processing and Applications; and Innovative Multispectral Technology and Applications, Pts 1 and 2, Bellingham Meng, Yu; Zhao, Zhongming; Peng, Shu 收藏  |  浏览/下载：19/0  |  提交时间：2014/12/07 SPOT5 image  object-oriented approach  mudstone   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.