Evaluation and optimization of a spatial calibration method to accurately locate transducer positions in 3D USCT III

Forschungsthema/Bereich

Medical ultrasound imaging

Typ der Abschlussarbeit

Bachelor / Master

Startzeitpunkt

01.09.2026

Bewerbungsschluss

31.08.2026

Dauer der Arbeit

6 months

Beschreibung

To exploit the resolution capability of the 3D USCT III, precise knowledge (better than half the wavelength, approximately 0.2 mm) of the geometry of the measurement aperture is required. Due to construction constraints, this level of accuracy cannot be guaranteed, which is why a geometric calibration is now to be carried out after assembling the system. In prior work a method has been developed for the predecessor system USCT II and a re-implementation of this method for 3D USCT III was recently completed. Yet, the method does not reliably enable calibration at the necessary high precision. The goal of this thesis is to analyze possible reasons for mis-calibrations with simulated data and to optimize the method accordingly. E.g. one option may be to add considerably more measurements to the calibration process such that the method is able to cope better with outliers. Subsequently, the quality of the calibration is to be assessed using appropriate experimental data. The objective is to develop an automatic method that can be repeatedly applied throughout the lifetime of the 3D USCT III to ensure consistently accurate knowledge of the system state with regard to the geometric arrangement of the transducers.

Voraussetzung

Voraussetzungen an Studierende

• Interest in medical imaging, ultrasound, and (MATLAB) programming

Studiengangsbereiche

• Ingenieurwissenschaften
  Elektrotechnik & Informationstechnik
  Biomedical Engineering
  Electrical Engineering and Information Technology
  Medizintechnik
• Naturwissenschaften und Technik
  Physik
  Physics

Betreuung

Titel, Vorname, Name

Dr. Torsten Hopp and PD Dr. Nicole Ruiter

Organisationseinheit

IPE

E-Mail Adresse

nicole.ruiter@kit.edu

Link zur eigenen Homepage/Personenseite

Website

Bewerbung per E-Mail

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E-Mail Adresse für die Bewerbung
Senden Sie die oben genannten Bewerbungsunterlagen bitte per Mail an nicole.ruiter@kit.edu


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