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Some of our work requires us to generate computer simulated physical processes and computer synthesis of textures.
For example, François Bochud has created a computer program that creates synthetic textures that mimic backgrounds in x-ray mammograms. The purpose of having synthetic backgrounds is to facilitate the study of perception of medical images without having to have access to a large database of real images. The technique known as clustered lumpy background is an extension of the lumpy background technique proposed by Rolland and Barrett.
Mammography simulation using Clustered Lumpy Backgrounds (SBLB) François Bochud. The simulation shows how the image is created by randomly dropping clusters of blobs in the images. The final image is that one with the most blobs.
Our study and modeling of the perception of x-ray coronary angiograms has led us to develop and algorithm that embeds stylized simulated arteries with simulated morphological features in real patientcoronary angiograms. This simulation takes into consideration the attenuation of x-rays by the contrast filled arteries, image receptor blur and scattering and veiling glare.
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