The Israeli National GIS project, carried out by the Survey of Israel since 1991, has entered the updating phase at the beginning of 1996. The paper will discuss, briefly, the test cases, the results, the experience gained during an evaluation process, ended in 1998. These experiments include: (1) Different photogrammetric instruments; (2) Various spatial models (2-D, 2.5-1) and 3-D); (3) Effects of the updated units, in terms of size; and (4) Optional updating protocols. Also presented are the recommendations for the chosen updating process of a "full" 3-Dimensional Digital Photogrammetric Updating Environment. In addition, the paper is presenting the Digital Updating Pilot Project which will serve as the basis for future updating efforts. Presented also, is the resulted "6-step updating process" of the National GIS data base: (1) Data extraction from the 2.5-Dimensional GIS data base (in Arc/Info environment); (2) Quality control, including automatic corrections and tagging of erroneous data; (3) Transformation of data into a 3-Dimensional model; (4) PC-based digital photogrammetry updating; (5) Automatic quality control, and (6) Conversion data into the 2.5-Dimensional model of the Arc/Info based National GIS.
|Number of pages||6|
|Journal||International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives|
|State||Published - 2000|
|Event||19th International Congress for Photogrammetry and Remote Sensing, ISPRS 2000 - Amsterdam, Netherlands|
Duration: 16 Jul 2000 → 23 Jul 2000
Bibliographical notePublisher Copyright:
© 2000 International Society for Photogrammetry and Remote Sensing. All rights reserved.
- Digital Photogrammetric Workstations
ASJC Scopus subject areas
- Information Systems
- Geography, Planning and Development