Motion Analysis in Ultrasound Image for Radiation Therapy

Abstract

We propose a dense motion analysis method of ultrasound image. The motion analysis is implemented by tracking the lattice points. In this study, two novel processing are performed to ultrasound image. One is to track the lattice points by optical flow intr oduced multiple spring models. The other is to detect the lattice points based on texture information with confidence coefficient, the detector corrects the tracking errors. We evaluated our method using a simulated ultrasound image of 5 min. The mean error and maximum error of our proposed method achieved the best performance in the conventional methods.