VGIS-AntiJitter: an effective framework for solving jitter problems in virtual geographic information systems
文献类型：期刊论文
| 作者 | Luo, Feixiong1,3; Zhong, Ershun1,2; Cao, Guofeng4; Tellez, Ricardo Delgado1; Gao, Pengqi5
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| 刊名 | INTERNATIONAL JOURNAL OF DIGITAL EARTH
 |
| 出版日期 | 2013 |
| 卷号 | 6期号:1页码:28-50 |
| 关键词 | Digital Earth VGIS jitter problem round-off error local coordinate system |
| 英文摘要 | With the proposition of the Digital Earth (DE) concept, Virtual Geographic Information System (VGIS) has started to play the role of a Digital Earth prototype system. Many core problems involved in VGIS, such as out-of-core management and interactive rendering of very large scale terrain and image data, have been well studied in the past decades. However, the jitter problem, a common problem in VGIS that often causes annoying visual artefacts and deteriorates the output image quality, draws little attention. In this paper, after an intensive analysis of the jitter problem, a comprehensive framework is proposed to address such a problem while accounting for the characteristics of different data types in VGIS, such as terrain or ocean mesh data, vector data and 3-D model data. Specifically, this framework provides an improved dynamic local coordinate system (DLCS) method for terrain or ocean mesh data. For vector data, the framework provides a simple and effective multiple local coordinate systems (MLCS) method. The framework provides a MLCS method for 3-D model data making full use of the existing local coordinate system of the model. The advantages of the proposed methods over current approaches are analysed and highlighted through case studies involving large GIS datasets. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000315719500003 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6020]  |
| 专题 | 国家天文台_应用天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 3.E China Normal Univ, Shanghai Key Lab Urban Ecol & Sustainabil, Shanghai 200062, Peoples R China 4.Univ Calif Santa Barbara, Dept Geog, Santa Barbara, CA 93106 USA 5.Chinese Acad Sci, Natl Astron Observ, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Feixiong,Zhong, Ershun,Cao, Guofeng,et al. VGIS-AntiJitter: an effective framework for solving jitter problems in virtual geographic information systems[J]. INTERNATIONAL JOURNAL OF DIGITAL EARTH,2013,6(1):28-50. |
| APA | Luo, Feixiong,Zhong, Ershun,Cao, Guofeng,Tellez, Ricardo Delgado,&Gao, Pengqi.(2013).VGIS-AntiJitter: an effective framework for solving jitter problems in virtual geographic information systems.INTERNATIONAL JOURNAL OF DIGITAL EARTH,6(1),28-50. |
| MLA | Luo, Feixiong,et al."VGIS-AntiJitter: an effective framework for solving jitter problems in virtual geographic information systems".INTERNATIONAL JOURNAL OF DIGITAL EARTH 6.1(2013):28-50. |
入库方式： OAI收割
来源：国家天文台
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