Realistic Simulations for the Evaluation of Monomodal Registration Algorithms of 3D Pelvic Ultrasound Images

摘要

Motivation: to propose a simulation framework to validate ultrasound registration algorithms. Methods: the proposed framework is composed of 4 steps: (1) an ultrasound image is simulated from a real one, (2) the scatterers are displaced with a known transformation and (3) a new ultrasound image is generated from this transformed scatterer map. Finally (4), registration is performed between the images simulated at steps 1 and 3. Registration results are compared to the applied transform (step 2). Results: the experts admitted the simulated images were highly realistic. The mean registration errors were -0.8±1.3mm, 1.2±2.6mm in anterior-posterior and superior-inferior directions, respectively.