Faculté des Sciences appliquées
Faculté des Sciences appliquées

Master's Thesis : Tomosynthesis Imaging: Principles, Simulations and Practical Performance

Coline, Joachim ULiège
Promotor(s) : Phillips, Christophe ULiège
Date of defense : 25-Jun-2020/26-Jun-2020 • Permalink :
Title : Master's Thesis : Tomosynthesis Imaging: Principles, Simulations and Practical Performance
Author : Coline, Joachim ULiège
Date of defense  : 25-Jun-2020/26-Jun-2020
Advisor(s) : Phillips, Christophe ULiège
Committee's member(s) : Redouté, Jean-Michel ULiège
Vanderbemden, Philippe ULiège
Libertiaux, Vincent 
Language : English
Discipline(s) : Engineering, computing & technology > Electrical & electronics engineering
Institution(s) : Université de Liège, Liège, Belgique
Degree: Master : ingénieur civil électricien, à finalité spécialisée en "signal processing and intelligent robotics"
Faculty: Master thesis of the Faculté des Sciences appliquées


[fr] Among the wide range of possible nondestructive testing (NDT) methods in the industry, today X-ray imaging technologies are a powerful solution. With the recent advances in technology, it has indeed become possible to acquire digital images of X-ray projections very efficiently. Such fast, two-dimensional visualization of inner structures of opaque objects naturally led to the problem of reconstructing entirely any object based on their X-ray projections. This problem is known as Computed Tomography (CT).
In some cases a full reconstruction of the object is wanted but practically infeasible, either because of time restrictions or simply because projections can not be acquired all around the object. Examples include the 3D inspection of an airplane wing or the demining operation of an unidentified object. In such scenarios, tomosynthesis can be a useful alternative.
This thesis aims at providing theoretical, numerical and practical insights about tomosynthesis imaging as a new X-RIS solution for NDT. To this end, the work is divided in three main parts. The first part focuses on building a theoretical background about X-ray physics and the reconstruction problem is addressed. The second part contains a simulation study of the tomosynthesis prototype built by X-RIS, which allows to understand the artefacts caused by the reconstruction algorithms regardless of practical complications. Finally, the last part provides examples of real reconstructions and discusses the practical feasibility of tomosynthesis for quasi real-time (less than 30 seconds) inspection of industrial parts.
The results of the numerical and practical experiments carried out in this work show that despite the presence of heavy artefacts in the reconstructions, the X-RIS tomosynthesis prototype is able to retrieve accurate depth information about inner structures of objects --- and in a decent amount of time.



Access abstract.pdf
Size: 7.49 MB
Format: Adobe PDF
Access thesis.pdf
Size: 45.95 MB
Format: Adobe PDF


  • Coline, Joachim ULiège Université de Liège > Master ingé. civ. électr., à fin.


Committee's member(s)

  • Redouté, Jean-Michel ULiège Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes microélectroniques intégrés
    ORBi View his publications on ORBi
  • Vanderbemden, Philippe ULiège Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Capteurs et systèmes de mesures électriques
    ORBi View his publications on ORBi
  • Libertiaux, Vincent X-Ray Imaging Solutions
  • Total number of views 95
  • Total number of downloads 9

All documents available on MatheO are protected by copyright and subject to the usual rules for fair use.
The University of Liège does not guarantee the scientific quality of these students' works or the accuracy of all the information they contain.