2D, 3D Rigid Registration Algorithm Base on CUDA

VernacularTitle:基于CUDA的2D、3D刚性配准方法
Author: Jian XU ; An QIN ; Xiaolin MENG ; Wufan CHEN ; Qianjin FENG
Publication Type:Journal Article
Keywords: medical image registration; GPU (graphic processing unit); CUDA (compute unified device architecture)
From: Chinese Journal of Medical Physics 2010;27(2):1721-1725,1730
CountryChina
Language:Chinese
Abstract: Objective: Real time medical image registration technique is one of the key techniques in image based surgery navi-gation system. While in medical image analysis, image registration is usually a very time-cousuming operation, and this is not conducive to clinical real-time requirements. This paper studies and realizes the acceleration of the process of image registra-tion. Methods: In order to improve the regisWation rate, in this paper, we propose a new technology which is based on CUDA (Compute Unified Device Architecture) programming model to accelerate the process of registration in hardware, using paral-lel methods to achieve pixel coordinate transformation, linear interpolation, and calculate the corresponding pixel gray value residuals. Results: The registration is up to the sub-pixel level and the GPU-based registration is dozens or even hundreds of times faster than CPU-based registration. Conclusions: This method greatly enhances the speed of rigid registration without changing the alignment accuracy.