A Generation Algorithm of DRR Based on GPU

Xiao Gang Du; Jian Wu Dang; Yang Ping Wang

doi:10.4028/www.scientific.net/AMM.543-547.2809

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 543-547A Generation Algorithm of DRR Based on GPU

A Generation Algorithm of DRR Based on GPU

Abstract:

Because of the good parallelism of the generation procedure of digitally reconstructed radiographs, a real-time generation algorithm of digitally reconstructed radiographs based on Compute Unified Device Architecture is presented in this paper. Firstly, the volume data and other input parameters are read and loaded into the GPU; Secondly, the kernel procedure which can be used to simulate the decay process of X-ray in the human body is designed according to the correspondence between X-rays and threads; Finally, the kernel function is executed in parallel by the multi-thread to complete the DRR image generation. The experimental results show that this algorithm uses effectively the parallel computing capabilities of GPU in the premise of ensuring the quality of the DRR, improves significantly the generation speed of DRR, and meets the real-time requirements of digitally reconstructed radiographs in the image-guided radiotherapy.

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Periodical:

Applied Mechanics and Materials (Volumes 543-547)

Pages:

2809-2812

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.543-547.2809

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Online since:

March 2014

Authors:

Xiao Gang Du*, Jian Wu Dang, Yang Ping Wang

Keywords:

CUDA, Digitally Reconstructed Radiograph, GPU, Image-Guided Radiotherapy

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* - Corresponding Author

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