In my research work, I often find it difficult to get datasets for X-ray CT for method validation, neither simulated and real data. Of course, there's the classic Shepp-Logan phantom, but in many cases it would save a lot of work to download datasets to test one's methods. As for my knowledge, there is no broad […]
Category: measurements
The "Helsinki walnut" dataset
Our research group has made an open access dataset for image reconstruction available at the following link: www.fips.fi/dataset.php The measurement data was collected and documented by K. Hämäläinen, L. Harhanen, A. Kallonen, A. Kujanpää, E. Niemi and S. Siltanen. Our group used the walnut data for testing several tomographic reconstruction algorithms, as you can see […]
Getting paid to play with LEGO blocks
You know you are working in the right place when you find yourself proudly wandering around your workplace with a full bag of original 80s LEGO blocks. People cannot help but throwing inquisitive looks and you go like "It's SCIENCE.". Today I had to take some measurements with my colleagues Aki and Alexander in the Physics Department X-ray tomography […]