摘要
基于Internet/Intranet的开放式地理信息系统WebGIS ,为人类共享遥感影像这一人类共同的资源 ,提供了快捷灵活的手段。尤其是 1998年以来 ,在“数字地球”的设想下 ,遥感影像数据无疑会在未来“数字地球”建设中占有重要地位。但是 ,海量遥感影像数据和网络有限带宽这对矛盾严重地影响着遥感影像的充分应用。国际标准化组织 (ISO)和图像专家联合小组 (JointPhotographicExpertsGroup ,JPEG)于 1997年提出的JPEG2 0 0 0图像标准 ,将会很好地解决这一矛盾[1] 。该文将论述基于该标准的遥感影像 ,在WebGIS上的应用实现及结构。
The Internet GIS provides an open and normative environment for people to share the geographic information, the common resource of Human Kind. In particular, from 1998 the project of Digital Earth has been progressed forward. It is no doubt that the image of RS will play an important role in the progress of building the Digital Earth. But now there is a big gap between the bandwidth and the size of image, which has affected the application of RS image greatly. Therefore, in 1997 the International Standard Organization associated with Joint Photographic Experts Group began to set up a new coding system of still image-JPEG2000, which will solve this problem perfectly. This paper presents the archtecture of Web Gis application based on JPEG2000.
出处
《遥感学报》
EI
CSCD
北大核心
2001年第5期388-395,共8页
NATIONAL REMOTE SENSING BULLETIN
基金
国家重点基础研究发展规划项目 (G2 0 0 0 0 7790 0 )
国家自然科学基金资助 ( 40 0 710 65 )
