Reflectance Transformation Imaging as a tool for engineering failure analysis

Harry Coules*, Paulo Orrock, Cui Seow

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

2 Citations (Scopus)
225 Downloads (Pure)


Reflectance Transformation Imaging (RTI) is a technique which can be used to record the surface appearance of objects. It can capture a surface’s interaction with incident light from different directions and it enables estimation of the surface normal vector. 3D surface profile information can be estimated from RTI datasets using photometric stereo methods. RTI currently has applications in archaeometry and cultural heritage studies but here we discuss the use of RTI in an engineering context: as a tool for failure analysis and particularly for examining failure surfaces in structural materials and components. We demonstrate that RTI can be a practical and low-cost technique for failure analysis, complementing other surface analysis and 3D scanning methods.
Original languageEnglish
Pages (from-to)1006-1017
Number of pages12
JournalEngineering Failure Analysis
Early online date23 Jul 2019
Publication statusPublished - 1 Nov 2019


  • Fractography
  • Reflectance Transformation Imaging
  • Photogrammetry
  • Photometric stereo

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