Aerial video geo-registration using terrain models from dense and coherent stereo matching

Ruano Sáinz, Susana; Gallego Bonet, Guillermo; Cuevas Rodríguez, Carlos y García Santos, Narciso (2014). Aerial video geo-registration using terrain models from dense and coherent stereo matching. En: "SPIE Defense, Security and Sensing Conference 2014", 05/05/2014 - 09/05/2014, Baltimore, Maryland, United States. ISBN 9781628410266.

Descripción

Título: Aerial video geo-registration using terrain models from dense and coherent stereo matching
Autor/es:
  • Ruano Sáinz, Susana
  • Gallego Bonet, Guillermo
  • Cuevas Rodríguez, Carlos
  • García Santos, Narciso
Tipo de Documento: Ponencia en Congreso o Jornada (Charla)
Título del Evento: SPIE Defense, Security and Sensing Conference 2014
Fechas del Evento: 05/05/2014 - 09/05/2014
Lugar del Evento: Baltimore, Maryland, United States
Título del Libro: Proceedings of SPIE Defense, Security and Sensing Conference
Título de Revista/Publicación: Proceedings of SPIE . Geospatial InfoFusion and Video Analytics IV; and Motion Imagery for ISR and Situational Awareness II
Fecha: Mayo 2014
ISBN: 9781628410266
Volumen: 9089
Materias:
Escuela: E.T.S.I. Telecomunicación (UPM)
Departamento: Señales, Sistemas y Radiocomunicaciones
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img]
Vista Previa
PDF (Document Portable Format) - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (9MB)

Resumen

In the context of aerial imagery, one of the first steps toward a coherent processing of the information contained in multiple images is geo-registration, which consists in assigning geographic 3D coordinates to the pixels of the image. This enables accurate alignment and geo-positioning of multiple images, detection of moving objects and fusion of data acquired from multiple sensors. To solve this problem there are different approaches that require, in addition to a precise characterization of the camera sensor, high resolution referenced images or terrain elevation models, which are usually not publicly available or out of date. Building upon the idea of developing technology that does not need a reference terrain elevation model, we propose a geo-registration technique that applies variational methods to obtain a dense and coherent surface elevation model that is used to replace the reference model. The surface elevation model is built by interpolation of scattered 3D points, which are obtained in a two-step process following a classical stereo pipeline: first, coherent disparity maps between image pairs of a video sequence are estimated and then image point correspondences are back-projected. The proposed variational method enforces continuity of the disparity map not only along epipolar lines (as done by previous geo-registration techniques) but also across them, in the full 2D image domain. In the experiments, aerial images from synthetic video sequences have been used to validate the proposed technique.

Más información

ID de Registro: 25889
Identificador DC: http://oa.upm.es/25889/
Identificador OAI: oai:oa.upm.es:25889
Depositado por: Susana Ruano Sainz
Depositado el: 20 May 2014 10:38
Ultima Modificación: 22 Sep 2014 11:38
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • e-ciencia
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM