Agenda
MSc SS Thesis Presentation
- Thursday, 22 August 2019
- 14:00-14:45
- EWI HB 17.150
Calibration of single element 3D ultrasound with a aberration mask
Bram VisserPrevious work has demonstrated the possibility of high-resolution 3D ultrasound imaging through the use of a single element and an aberration mask. This thesis will expand on the previous work by examining the proposed method for errors in the creation of the model.
The analysis is performed by examining the various aspects of the measurements setup and underlying theoretical model, after which measurements are performed to determine their contribution and correctness with regard to the model. Results demonstrated a systematic error of a non-linear frequency scaling and semi-linear phase shift. The origin of the error lies in the unwanted addition of transfer functions of some of the components. A Tikhonov regularized least squares method is proposed to estimate this transfer function and supply compensation based on all the measurements.
The results of the application of this method on the uncalibrated model are demonstrated through 1D imaging experiments. The result of which shows a significant improvement over the previous uncalibrated results. After which the possibility of calibration due to a singular measurement is explored and an adaptation of the Tikhonov regularized least squares method is proposed for a close approximation of the previously found transfer function. Further to obtain an indication of possible remaining hurdles and successes with this method, extensive simulations are performed to examine the individual impact of various sources of noise and interference.
Additional information ...Agenda
- Tue, 9 Apr 2024
- Pavia, Italy
32nd Workshop on Advances in Analog Circuit Design
32nd Workshop on Advances in Analog Circuit Design
The aim of the Workshop on Advances in Analog Circuit Design (AACD) is to bring together a large group of people working at the frontiers of analog circuit design, to study and discuss possibilities and future developments.
- Mon, 15 Apr 2024
- 15:00
- Aula Senaatszaal
PhD Thesis Defence
Huajun Zhang
High-Performance Multilevel Class-D Audio Amplifiers
- 25 -- 26 Apr 2024
- San Diego, CA, USA
IEEE Sensor Interfaces Meeting 2024
IEEE Sensor Interfaces Meeting 2024
- Mon, 6 May 2024
- 12:30
- Aula Senaatszaal
PhD Thesis Defence
Christoph Manss
Multi-agent exploration under sparsity constraints
- 27 -- 28 May 2024
- Aula, TU Delft
Conferences
44th Benelux Symposium on Information Theory and Signal Processing (SITB'24, Delft)
- Tue, 18 Jun 2024
- 15:00
- Aula Senaatszaal
PhD Thesis Defence
Hanie Moghaddasi
Model-based feature engineering of atrial fibrillation
- Mon, 24 Jun 2024
- Aula, TU Delft
Conferences
7th Graph Signal Processing Workshop (GSP 2024)
- Wed, 10 Jul 2024
- 10:00
- Aula Senaatszaal