The SmartLandMaps Approach for Participatory Land Rights Mapping

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Claudia Lindner - , University of Münster, Netherlands’ Cadastre - Land Registry and Mapping Agency (Author)
  • Auriol Degbelo - , Chair of Geoinformatics (Author)
  • Gergely Vassányi - , University of Münster (Author)
  • Kaspar Kundert - , University of Münster (Author)
  • Angela Schwering - , University of Münster (Author)

Abstract

Millions of formal and informal land rights are still undocumented worldwide and there is a need for scalable techniques to facilitate that documentation. In this context, sketch mapping based on printed high-resolution satellite or aerial imagery is being promoted as a fit-for-purpose land administration method and can be seen as a promising way to collect cadastral and land use information with the community in a rapid and cost-effective manner. The main disadvantage of paper-based mapping is the need for digitization to facilitate the integration with existing land administration information systems and the sustainable use of the data. Currently, this digitization is mostly done manually, which is time-consuming and error-prone. This article presents the SmartLandMaps approach to land rights mapping and digitization to address this gap. The recording involves the use of sketches during participatory mapping activities to delineate parcel boundaries, and the use of mobile phones to collect attribute information about spatial units and land rights holders. The digitization involves the use of photogrammetric techniques to derive a digital representation from the annotated paper maps, and the use of computer vision techniques to automate the extraction of parcel boundaries and stickers from raster maps. The approach was deployed in four scenarios across Africa, revealing its simplicity, versatility, efficiency, and cost-effectiveness. It can be regarded as a scalable alternative to traditional paper-based participatory land rights mapping.

Details

Original languageEnglish
Article number2043
Number of pages21
JournalLand
Volume12(2023)
Issue number11
Publication statusPublished - 10 Nov 2023
Peer-reviewedYes

Keywords

Sustainable Development Goals

Keywords

  • cadastral boundary extraction, fit-for-purpose, land administration, open data kit (ODK), paper map digitization, participatory mapping, sketch maps, vectorization