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http://dspace.vgtu.lt/handle/1/396
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| Title: | Parallel algorithms for solution of nonlinear diffusion problems in image smoothing |
| Other Titles: | Apie lygiagrečiuosius algoritmus, skirtus netiesinių difuzijos lygčių sprendimui ir jų naudojimą vaizdų filtravimui |
| Authors: | Čiegis, Raimondas
Jakušev, Aleksandr
Krylovas, Aleksandras
Suboč, Olga |
| Keywords: | Nonlinear diffusion filters
Parallel algorithms
Finite–volume method |
| Issue Date: | 2005 |
| Publisher: | Vilniaus Gedimino technikos universitetas |
| Citation: | Čiegis, R.; Jakušev, A.; Krylovas, A.; Suboč, O. 2005. Parallel algorithms for solution of nonlinear diffusion problems in image smoothing, Mathematical Modelling and Anglysis 10(2): 155-172. |
| Abstract: | In this work we consider parallel algorithms for solution of nonlinear parabolic PDEs. First mathematical models describing nonlinear diffusion filters are presented. The finite–volume method is used to approximate differential equations. Parallel algorithms are based on the domain decomposition method. The algorithms are implemented by using Par- Sol parallelization tool and a brief description of this tool is also presented. The efficiency of proposed parallel algorithms is investigated and results of the scalability analysis are given. Theoretical predictions are compared with results of computational experiments. Application of nonlinear diffusion filters for analysis of computer tomography images is discussed in the last section of the paper. |
| URI: | http://dspace1.vgtu.lt/handle/1/396 |
| ISSN: | 1392-6292 |
| Appears in Collections: | Moksliniai straipsniai / Research articles
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