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- W2377074903 abstract "To acquire an accurate patient positioning in image-guided radiotherapy, an improved Demons deformable registration method was developed. The FDK algorithm was adopted to reconstruct Cone Beam CT( CBCT) and the reconstruction result was visualized by a volume rendering method with Visualization ToolKit( VTK). Based on the Insight segmentation and registration ToolKit( ITK), the Demons algorithm was completed incorporating the gradient information of fixed image and floating image by the concept of symmetric gradient, and a new formula of Demons force was demonstrated.Registrion experiments were carried out using medical images both from single modality and multi-modality. The results show that the improved Demons algorithm achieves a faster convergence speed and a higher precision compared with the original demons algorithm, which indicates that the Demons algorithm based on symmetric gradient is more suitable for the registration of CBCT reconstruction image and CT plan image in image-guided radiotherapy." @default.
- W2377074903 created "2016-06-24" @default.
- W2377074903 creator A5085036939 @default.
- W2377074903 date "2013-01-01" @default.
- W2377074903 modified "2023-09-24" @default.
- W2377074903 title "Application of three-dimensional medical image registration algorithm in image-guided radiotherapy" @default.
- W2377074903 hasPublicationYear "2013" @default.
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