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Geographic Object-Based Image Analysis - Towards a new paradigm.

Thomas Blaschke¹, Geoffrey J Hay¹, Maggi Kelly¹

¹Department of Geoinformatics - Z_GIS, University of Salzburg, Hellbrunner Str. 34, A-5020 Salzburg, Austria.

ISPRS Journal of Photogrammetry and Remote Sensing : Official Publication of the International Society for Photogrammetry and Remote Sensing (ISPRS)

|March 14, 2014

Summary

This summary is machine-generated.

Geographic Object-Based Image Analysis (GEOBIA) is a new paradigm in remote sensing, moving beyond traditional pixel-based methods. This approach enhances feature extraction and analysis for high-resolution imagery, offering improved geo-intelligence.

Keywords:

GEOBIA GIScience Image classification Image segmentation OBIA Remote sensing

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Area of Science:

Remote Sensing
Geographic Information Science (GIScience)
Image Analysis

Background:

Scientific literature on Geographic Object-Based Image Analysis (GEOBIA) is rapidly increasing.
GEOBIA builds upon image segmentation and GIS-like spatial analysis, addressing limitations of per-pixel methods for high-resolution imagery.

Purpose of the Study:

To investigate the development and implications of GEOBIA.
To determine if GEOBIA represents a new paradigm in remote sensing and GIScience, using Kuhn's concept of paradigms.

Main Methods:

Analysis of scientific literature and Kuhn's paradigm theory.
Discussion of GEOBIA's core concepts: objects, ontologies, and scale multiplicity.
Examination of GEOBIA's support for remote sensing methods like change detection and accuracy assessment.

Main Results:

GEOBIA overcomes limitations inherent in per-pixel analysis for high-resolution remote sensing data.
Core GEOBIA concepts, including object definition and multi-scale analysis, are identified and elaborated.
The theoretical underpinnings of GEOBIA are contrasted with the 'per-pixel paradigm'.

Conclusions:

GEOBIA is identified as a new and evolving paradigm in remote sensing and GIScience.
The shift from pixels to objects represents a significant advancement towards enhanced geo-intelligence.
GEOBIA offers a robust framework for advanced remote sensing applications and analysis.