3D Multimodal Simulation of Image Acquisition by X-Ray and MRI for Validation of Seedling Measurements with Segmentation Algorithms

International audienceIn this report, we present a 3D simulator for the numerical validation of segmentation algorithms for seedling in soil from X-ray or MRI. A 3D simulator of root in elongation is coupled to a simulator of the image acquisition to generate images of simulated seedling associated with a known synthetic ground truth. We detail how acquisition parameters of the seedling and parameters of the imaging systems are estimated and combined to produce realistic images. The resulting simulator is available on line to open the possibility of segmentation challenges with in silico validation based on unlimited number of seedling