Fast and robust 3D ultrasound registration - Block and game theoretic matching

作者：Banerjee Jyotirmoy^*; Klink Camiel; Peters Edward D; Niessen Wiro J; Moelker Adriaan; van Walsum Theo

来源：Medical Image Analysis, 2015, 20(1): 173-183.

DOI：10.1016/j.media.2014.11.004

• Ultrasound
• Liver
• Real-time
• Registration

Real-time 3D US has potential for image guidance in minimally invasive liver interventions. However, motion caused by patient breathing makes it hard to visualize a localized area, and to maintain alignment with pre-operative information. In this work we develop a fast affine registration framework to compensate in real-time for liver motion/displacement due to breathing. The affine registration of two consecutive ultrasound volumes in time is performed using block-matching. For a set of evenly distributed points in one volume and their correspondences in the other volume, we propose a robust outlier rejection method to reject false matches. The inliers are then used to determine the affine transformation. The approach is evaluated on 13 4D ultrasound sequences acquired from 8 subjects. For 91 pairs of 3D ultrasound volumes selected from these sequences, a mean registration error of 1.8 mm is achieved. A graphics processing unit (GPU) implementation runs the 3D US registration at 8 Hz.

• 出版日期2015-2