Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Influence of voxel size settings in X-Ray CT Imagery of soil in scaling properties.
Year:2012
Research Areas
  • Mathematics,
  • Natural sciences and health sciences,
  • Earth sciences,
  • Soil science,
  • Agriculture
Information
Abstract
Fundamental to the interpretation and comparison of X-ray CT imagery of soil is recognition of the objectivity and consistency of procedures used to generate the 3D models. Notably, there has been a lack of consistency in the size of voxels used for diverse interpretations of soils features and processes; in part, this is due to the ongoing evolution of instrumentation and computerized image processing capacity. Moreover, there is still need for discussion on whether standard voxels sizes should be recommended, and what those would be. Regardless of any eventual adoption of such standards, there is a need to also consider the manner in which voxel size is set in the 3D imagery. In the typical approaches to X-ray CT imaging, voxel size may be set at three stages: image acquisition (involving the position of the sample relative to the tube and detector), image reconstruction (where binning of pixels in the acquired images may occur), as well as post-reconstruction re-sampling (which may involve algorithms such as tri-cubic convolution). This research evaluates and compares the spatial distribution of intra-aggregate voids in 3D imagery as well as their scaling properties, of equivalent voxel size, generated using various combinations of the aforementioned approaches. Funding provided by Spanish Ministerio de Ciencia e Innovación (MICINN) through project no. AGL2010- 21501/AGR is greatly appreciated.
International
Si
Congress
E.G.U. 2012 9th General Assembly.
960
Place
Viena, Austria
Reviewers
Si
ISBN/ISSN
1029-7006
Start Date
22/04/2012
End Date
27/04/2012
From page
1
To page
1
Geophysical Research Abstracts Vol. 14
Participants
  • Autor: R. Heck
  • Autor: N.T. Scaiff
  • Autor: Diego Andina De la Fuente (UPM)
  • Autor: Ana Maria Tarquis Alfonso (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Automatización en Señal y Comunicaciones (GASC)
  • Centro o Instituto I+D+i: Centro de Estudios e Investigación para la Gestión de Riesgos Agrarios Medioambientales (CEIGRAM)
  • Departamento: Señales, Sistemas y Radiocomunicaciones
  • Departamento: Matemática Aplicada a la Ingeniería Agronómica
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