FDBNS ISO/TR 19121-1 Geographic information — Imagery and gridded data Technical Report

The Bahamas Bureau of Standards and Quality (BBSQ) is in the enquiry phase of developing the following standards that have been prepared by the Technical Committee comprising of technical experts from a wide cross section of stakeholders. The standard being issued for public comment, in accordance with the provisions set out in the Standards Act, Chapter 338 (2006), and in keeping with the international best practices and standards development procedures. Please note that these standards should not be reprinted or used for any other purpose other than review and public comments. This is due to the documents being copyrighted by ISO and being the sole property of the Bahamas Government.

This Technical Report is intended to identify the manner by which ISO/TC 211 should handle imagery and gridded data in the context of its standards.

A natural image is a radiometric representation of the real world, as seen by an optical or other sensor. A synthetic image is a generated depiction of spatial data in a visual form. Both natural and synthetic image data are being used increasingly in the area of geographic information/geomatics. Gridded data is the representation of attribute values in terms of a spatial grid. All three of these forms of spatial information can be handled in a similar manner by representation in terms of a raster or matrix structure. Both a raster and a matrix are array structures that may be coded somewhat differently due to the characteristics of the data.