SIST ISO 19130-1:2019 PDF

Overview

SIST ISO 19130-1:2019 - "Geographic information - Imagery sensor models for geopositioning - Part 1: Fundamentals" defines the geolocation information imagery data providers must supply so users can convert image coordinates (pixels) to ground coordinates (geoposition). The standard standardizes imagery sensor models, metadata requirements, and model options used for precise geopositioning of remotely sensed data from optical and SAR sensors.

Key topics and technical requirements

• Purpose: Identify the minimum information and metadata required to determine the relationship between a pixel in image coordinates and its geographic position.
• Supported model types:
  • Physical Sensor Model (PSM) - rigorous sensor description with physical and geometric parameters. ISO 19130‑1 identifies the mathematical equations for constructing PSMs for frame, pushbroom, whiskbroom optical/IR sensors and SAR (synthetic aperture radar), and specifies associated error propagation calculations.
  • True Replacement Model (TRM) - functional models whose coefficients are derived from a PSM to provide equivalent geopositioning accuracy.
  • Correspondence Model (CM) - empirical functional fitting based on observed relationships between Ground Control Points (GCPs) and image coordinates.
  • Ground Control Points (GCPs) - sets of control points usable to develop or refine CMs, TRMs, or PSMs.
• Metadata and schemas: Specifies metadata components and profiles to accompany imagery so users can perform geopositioning. Annexes provide data dictionary, coordinate system guidance, and sensor-specific metadata profiles (frame, pushbroom/whiskbroom, SAR).
• Quality & conformance: Includes provisions for error metrics, quality information, conformance/testing guidance and how metadata supports precision claims.
• Limitations: The document does not prescribe how users must derive geoposition data or the format/content of user-generated results.

Practical applications and target users

• Remote sensing and satellite data providers preparing imagery for distribution
• GIS and photogrammetry professionals performing orthorectification, mapping, and image analysis
• Mapping agencies, defense and intelligence organizations, and commercial imagery vendors seeking standardized geolocation metadata
• Software developers building geopositioning, orthorectification, and sensor modelling tools
• Researchers integrating heterogeneous imagery sources for change detection, asset monitoring, and geospatial analytics

Related standards and resources

• Part of the ISO 19130 series; references other ISO geographic information standards (coordinate systems, metadata).
• Key supporting annexes: Annex A (conformance/testing), Annex B (geolocation data dictionary), Annex C (coordinate systems), and informative metadata profiles for specific sensor types.

Keywords: ISO 19130-1, SIST ISO 19130-1:2019, imagery sensor models, geopositioning, Physical Sensor Model, TRM, Correspondence Model, SAR, pushbroom, frame sensor, whiskbroom, ground control points, geolocation metadata, remote sensing.