Efficient registration method of medical images using GPU

Tsuneya Kurihara; Kazuki Matsuzaki; Kumiko Seto; Yoshihiko Nagamine

doi:10.1117/12.877215

11 March 2011 Efficient registration method of medical images using GPU

Tsuneya Kurihara, Kazuki Matsuzaki, Kumiko Seto, Yoshihiko Nagamine

Proceedings Volume 7962, Medical Imaging 2011: Image Processing; 796222 (2011) https://doi.org/10.1117/12.877215
Event: SPIE Medical Imaging, 2011, Lake Buena Vista (Orlando), Florida, United States

Abstract

Registration of medical images is an important task; however, automatic image-based registration is computationally expensive. Given this task, the authors propose an efficient rigid registration method, which is based on mutual information and uses a graphics processing unit (GPU). Mutual-information-based registration methods require joint-histogram computation. Although a GPU can provide high performance computing, a joint histogram has a large number of bins, and the computation of such a histogram is not suitable for a GPU (whose shared memory is limited). Taking advantage of the fact that one image (the reference image) is not transformed during the registration process, the proposed method computes a joint histogram by computing multiple onedimensional histograms and combining them. The method can therefore be efficiently implemented on a GPU even with limited shared memory. Experimental results for 256 × 256 × 256 image registration show that the method is about 140 times faster than a standard implementation on a CPU and 2.6 times faster than previous methods using GPUs.

Citation Download Citation

Tsuneya Kurihara, Kazuki Matsuzaki, Kumiko Seto, and Yoshihiko Nagamine "Efficient registration method of medical images using GPU", Proc. SPIE 7962, Medical Imaging 2011: Image Processing, 796222 (11 March 2011); https://doi.org/10.1117/12.877215

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