Matches in SemOpenAlex for { <https://semopenalex.org/work/W804980310> ?p ?o ?g. }
Showing items 1 to 85 of
85
with 100 items per page.
- W804980310 abstract "Purpose: Due to the limited number of projections at each phase, the image quality of a four-dimensional cone-beam CT (4D-CBCT) is often degraded, which decreases the accuracy of subsequent motion modeling. One of the promising methods is the simultaneous motion estimation and image reconstruction (SMEIR) approach. The objective of this work is to enhance the computational speed of the SMEIR algorithm using adaptive feature-based tetrahedral meshing and GPU-based parallelization. Methods: The first step is to generate the tetrahedral mesh based on the features of a reference phase 4D-CBCT, so that the deformation can be well captured and accurately diffused from the mesh vertices to voxels of the image volume. After the mesh generation, the updated motion model and other phases of 4D-CBCT can be obtained by matching the 4D-CBCT projection images at each phase with the corresponding forward projections of the deformed reference phase of 4D-CBCT. The entire process of this 4D-CBCT reconstruction method is implemented on GPU, resulting in significantly increasing the computational efficiency due to its tremendous parallel computing ability. Results: A 4D XCAT digital phantom was used to test the proposed mesh-based image reconstruction algorithm. The image Result shows both bone structures and inside of the lungmore » are well-preserved and the tumor position can be well captured. Compared to the previous voxel-based CPU implementation of SMEIR, the proposed method is about 157 times faster for reconstructing a 10 -phase 4D-CBCT with dimension 256×256×150. Conclusion: The GPU-based parallel 4D CBCT reconstruction method uses the feature-based mesh for estimating motion model and demonstrates equivalent image Result with previous voxel-based SMEIR approach, with significantly improved computational speed.« less" @default.
- W804980310 created "2016-06-24" @default.
- W804980310 creator A5011424635 @default.
- W804980310 creator A5025135477 @default.
- W804980310 creator A5030253345 @default.
- W804980310 creator A5053420998 @default.
- W804980310 creator A5059684522 @default.
- W804980310 creator A5079794902 @default.
- W804980310 date "2015-06-01" @default.
- W804980310 modified "2023-09-23" @default.
- W804980310 title "SU-D-207-04: GPU-Based 4D Cone-Beam CT Reconstruction Using Adaptive Meshing Method" @default.
- W804980310 doi "https://doi.org/10.1118/1.4923905" @default.
- W804980310 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/26127214" @default.
- W804980310 hasPublicationYear "2015" @default.
- W804980310 type Work @default.
- W804980310 sameAs 804980310 @default.
- W804980310 citedByCount "0" @default.
- W804980310 crossrefType "journal-article" @default.
- W804980310 hasAuthorship W804980310A5011424635 @default.
- W804980310 hasAuthorship W804980310A5025135477 @default.
- W804980310 hasAuthorship W804980310A5030253345 @default.
- W804980310 hasAuthorship W804980310A5053420998 @default.
- W804980310 hasAuthorship W804980310A5059684522 @default.
- W804980310 hasAuthorship W804980310A5079794902 @default.
- W804980310 hasConcept C104293457 @default.
- W804980310 hasConcept C11413529 @default.
- W804980310 hasConcept C120665830 @default.
- W804980310 hasConcept C121332964 @default.
- W804980310 hasConcept C126838900 @default.
- W804980310 hasConcept C138885662 @default.
- W804980310 hasConcept C141379421 @default.
- W804980310 hasConcept C154945302 @default.
- W804980310 hasConcept C2776401178 @default.
- W804980310 hasConcept C2779813781 @default.
- W804980310 hasConcept C31972630 @default.
- W804980310 hasConcept C41008148 @default.
- W804980310 hasConcept C41895202 @default.
- W804980310 hasConcept C54170458 @default.
- W804980310 hasConcept C544519230 @default.
- W804980310 hasConcept C57493831 @default.
- W804980310 hasConcept C71924100 @default.
- W804980310 hasConceptScore W804980310C104293457 @default.
- W804980310 hasConceptScore W804980310C11413529 @default.
- W804980310 hasConceptScore W804980310C120665830 @default.
- W804980310 hasConceptScore W804980310C121332964 @default.
- W804980310 hasConceptScore W804980310C126838900 @default.
- W804980310 hasConceptScore W804980310C138885662 @default.
- W804980310 hasConceptScore W804980310C141379421 @default.
- W804980310 hasConceptScore W804980310C154945302 @default.
- W804980310 hasConceptScore W804980310C2776401178 @default.
- W804980310 hasConceptScore W804980310C2779813781 @default.
- W804980310 hasConceptScore W804980310C31972630 @default.
- W804980310 hasConceptScore W804980310C41008148 @default.
- W804980310 hasConceptScore W804980310C41895202 @default.
- W804980310 hasConceptScore W804980310C54170458 @default.
- W804980310 hasConceptScore W804980310C544519230 @default.
- W804980310 hasConceptScore W804980310C57493831 @default.
- W804980310 hasConceptScore W804980310C71924100 @default.
- W804980310 hasLocation W8049803101 @default.
- W804980310 hasOpenAccess W804980310 @default.
- W804980310 hasPrimaryLocation W8049803101 @default.
- W804980310 hasRelatedWork W1503461665 @default.
- W804980310 hasRelatedWork W1989792227 @default.
- W804980310 hasRelatedWork W1995404261 @default.
- W804980310 hasRelatedWork W2006999691 @default.
- W804980310 hasRelatedWork W2010680750 @default.
- W804980310 hasRelatedWork W2020117896 @default.
- W804980310 hasRelatedWork W2068384915 @default.
- W804980310 hasRelatedWork W2073211476 @default.
- W804980310 hasRelatedWork W2110538325 @default.
- W804980310 hasRelatedWork W2211448674 @default.
- W804980310 hasRelatedWork W2377581964 @default.
- W804980310 hasRelatedWork W2391003311 @default.
- W804980310 hasRelatedWork W2391424979 @default.
- W804980310 hasRelatedWork W2466767104 @default.
- W804980310 hasRelatedWork W2805197579 @default.
- W804980310 hasRelatedWork W2969885416 @default.
- W804980310 hasRelatedWork W3015754187 @default.
- W804980310 hasRelatedWork W3209636422 @default.
- W804980310 hasRelatedWork W2824989712 @default.
- W804980310 hasRelatedWork W2862944014 @default.
- W804980310 isParatext "false" @default.
- W804980310 isRetracted "false" @default.
- W804980310 magId "804980310" @default.
- W804980310 workType "article" @default.