Automatic registration of airborne and spaceborne images by topology map matching with SURF processor algorithm

Anna Brook, Eyal Ben-Dor

Research output: Contribution to journalArticlepeer-review

Abstract

Image registration is widely used in remote-sensing applications. The existing automatic image registration techniques fall into two categories: Intensity-based and feature-based; the latter (which extracts structures from both images) being more suitable for multi-sensor fusion, detection of temporal changes and image mosaicking. Conventional image registration algorithms have proven to be inaccurate, time-consuming, and unfeasible due to image complexity which makes it cumbersome or even impossible to discern the appropriate control points. In this study, we propose a novel method for automatic image registration based on topology (AIRTop) for change detection and multi-sensor (airborne and spaceborne) fusion. In this algorithm, we first apply image-processing methods (SURF-Speeded-Up Robust Features) to extract the landmark structures (roads and buildings) and convert them to a features (vector) map. The following stages are applied in GIS (Geographic Information System), where topology rules, which define the permissible spatial relationships between features, are defined. The relationships between features are established by weight-based topological map-matching algorithm (tMM). The suggested algorithm presents a robust method for image registration. The main focus in this study is on scale and image rotation, when the quality of the scanning system is constant. These seem to offer a good compromise between feature complexity and robustness to commonly occurring deformations. The skew and the anisotropic scaling are assumed to be second-order effects that are covered to some degree by the overall robustness of the sensor.

Original languageEnglish
Pages (from-to)65-82
Number of pages18
JournalRemote Sensing
Volume3
Issue number1
DOIs
StatePublished - Jan 2011
Externally publishedYes

Keywords

  • Automatic registration
  • Change detection
  • Multi-sensor airborne and spaceborne fusion
  • Scaling and image rotation
  • Weight-based topological map-matching algorithm (tMM)

ASJC Scopus subject areas

  • Earth and Planetary Sciences (all)

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