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Image analysis, an approach to measure grass roots from images
University of Skövde, Department of Computer Science.
2001 (English)Independent thesis Advanced level (degree of Master (One Year))Student thesis
Abstract [en]

In this project a method to analyse images is presented. The images document the development of grassroots in a tilled field in order to study the movement of nitrate in the field. The final aim of the image analysis is to estimate the volume of dead and living roots in the soil. Since the roots and the soil have a broad and overlapping range of colours the fundamental problem is to find the roots in the images. Earlier methods for analysis of root images have used methods based on thresholds to extract the roots. To use a threshold the pixels of the object must have a unique range of colours separating them from the colour of the background, this is not the case for the images in this project. Instead the method uses a neural network to classify the individual pixels. In this paper a complete method to analyse images is presented and although the results are far from perfect, the method gives interesting results

Place, publisher, year, edition, pages
Skövde: Institutionen för datavetenskap , 2001. , 83 p.
Keyword [en]
image analysis, neural networks, backpropagation, roots, soil
National Category
Information Science
Identifiers
URN: urn:nbn:se:his:diva-592OAI: oai:DiVA.org:his-592DiVA: diva2:2980
Presentation
(English)
Uppsok
Social and Behavioural Science, Law
Supervisors
Available from: 2008-01-25 Created: 2008-01-25 Last updated: 2009-10-05

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fulltext(1115 kB)129 downloads
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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
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  • Other locale
More languages
Output format
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