Thesis Topics
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Thesis Topics
List of currently open thesis topics
List of currently assigned thesis topics
Semi-Supervised Bubble Segmentation for Video Capsule Endoscopy
Abstract
Video capsule endoscopy produces vast numbers of frames per examination, particularly of the small bowel, which is difficult to reach by other means, and manually reviewing and labelling this material is impractical. This thesis therefore investigates bubble segmentation in capsule endoscopy frames using semi-supervised learning, so that a small labelled subset suffices to classify the entire dataset. A Python/OpenCV tool is developed to annotate frames and generate bitmasks marking bubble positions; these masks then train a U-Net-based deep CNN in PyTorch, pre-trained on RGB data, whose predictions are evaluated using accuracy and precision scores.
Integration of a Hardware Accelerator for On-Device Localization in an FPGA-Based Video Capsule Prototype
Abstract
In video capsule endoscopy, most of the capsule’s limited energy budget is spent on illumination and the wireless transmission of every captured image, even though many frames show organs irrelevant to the examination. This thesis integrates the resource-efficient UltraTrail AI accelerator into the FPGA of an Ovesco capsule prototype, using a Lattice CrossLink-NX-33 and a SystemVerilog design, so that a compact neural network can localize the capsule within the GI tract on-device and restrict transmission to the organ of interest. The design is verified in simulation and tested on real hardware via a USB-to-SPI adapter and a hardware-in-the-loop camera model, and is extended with improved memory organization, a Hidden Markov Model for more accurate localization, and pipelining of image capture with model execution to further reduce energy consumption.List of already finished thesis topics
Evaluation of Energy-Efficient Image Compression Algorithms for Video Capsule Endoscopy