Developments in open-source tools for microwave breast imaging

Open-source models, datasets and toolboxes are becoming increasingly common in the microwave breast imaging literature, including numericial breast models, simulated and experimental datasets and imaging and analysis tools. These tools lower the barrier to entry for researchers interested in radar-based breast imaging, and also present the opportunity to test algorithms and approaches on multiple datasets with different advantages and limitations. In this work, recent developments in open-source tools for radar-based breast imaging are reviewed. Moreover, uses of the MERIT toolbox and the BRIGID dataset are examined and recent developments highlighted. Finally, gaps in the open-source landscape in terms of simulation and antenna design and standardised approaches are identified.