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Automatic Volume Estimation of Timber from Multi-View Stereo 3D Reconstruction
Linköping University, Department of Electrical Engineering, Computer Vision.
2017 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The ability to automatically estimate the volume of timber is becoming increasingly important within the timber industry. The large number of timber trucks arriving each day at Swedish timber terminals fortifies the need for a volume estimation performed in real-time and on-the-go as the trucks arrive.

This thesis investigates if a volumetric integration of disparity maps acquired from a Multi-View Stereo (MVS) system is a suitable approach for automatic volume estimation of timber loads. As real-time execution is preferred, efforts were made to provide a scalable method. The proposed method was quantitatively evaluated on datasets containing two geometric objects of known volume. A qualitative comparison to manual volume estimates of timber loads was also made on datasets recorded at a Swedish timber terminal.

The proposed method is shown to be both accurate and precise under specific circumstances. However, robustness is poor to varying weather conditions, although a more thorough evaluation of this aspect needs to be performed. The method is also parallelizable, which means that future efforts can be made to significantly decrease execution time.

Place, publisher, year, edition, pages
2017. , 63 p.
Keyword [en]
3D Reconstruction, Multi-View Stereo, Automatic Volume Estimation, Signed Distance Function, Computer Vision, Signal Processing, Image Processing
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:liu:diva-142513ISRN: LiTH-ISY-EX--17/5093--SEOAI: oai:DiVA.org:liu-142513DiVA: diva2:1153580
External cooperation
Saab Dynamics AB
Subject / course
Computer Vision Laboratory
Supervisors
Examiners
Available from: 2017-10-31 Created: 2017-10-30 Last updated: 2017-10-31Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf