An automatic stopping criterion for nonlinear anisotropic diffusion
| dc.contributor.author | Bustacara-Medina, César | |
| dc.contributor.author | Flórez-Valencia, Leonardo | |
| dc.contributor.editor | Skala, Václav | |
| dc.date.accessioned | 2019-10-21T09:54:58Z | |
| dc.date.available | 2019-10-21T09:54:58Z | |
| dc.date.issued | 2019 | |
| dc.description.abstract-translated | Nonlinear anisotropic diffusion (NAD) filtering is a procedure based on nonlinear evolution PDEs which seeks to improve images qualitatively by removing noise while preserving details and even enhancing edges. However, well-known implementations are sensitive to parameters which are necessarily tuned to sharpen a narrow range of edge slopes; otherwise, edges are either blurred or staircased [Kee2002]. One important parameter is the iterations number, for that reason, in this paper a stopping criterion to halt the diffusion process is proposed. To meet this goal, two stopping criteria were compared. The first is the stopping criterion proposed by Joao et. al. [Joã2016], which is based on the Mean Squared Error (MSE). The second is our proposed method based on the CIRR contrast measure. To this end, a comparative analysis of five diffusion methods is performed. Four of them are nonlinear anisotropic diffusion methods and the fifth is the Perona-Malik method. According to the tests performed, the number of iterations required by the smoothing algorithms using the proposed stopping criterion is lower. | en |
| dc.format | 12 s. | cs |
| dc.format.mimetype | application/pdf | |
| dc.identifier.citation | Journal of WSCG. 2018, vol. 26, no. 1, p. 37-48. | en |
| dc.identifier.doi | https://doi.org/10.24132/JWSCG.2019.27.1.5 | |
| dc.identifier.issn | 1213-6964 (on-line) | |
| dc.identifier.issn | 1213-6972 (print) | |
| dc.identifier.issn | 1213-6980 (CD-ROM) | |
| dc.identifier.uri | http://hdl.handle.net/11025/35552 | |
| dc.language.iso | en | en |
| dc.publisher | Václav Skala - UNION Agency | cs |
| dc.rights | © Václav Skala - UNION Agency | cs |
| dc.rights.access | openAccess | en |
| dc.subject | vyhlazování | cs |
| dc.subject | kritéria pro zastavení | cs |
| dc.subject | nelineární anizotropní difúze | cs |
| dc.subject | detekce okraje | cs |
| dc.subject.translated | smoothing | en |
| dc.subject.translated | stopping criteria | en |
| dc.subject.translated | nonlinear anisotropic diffusion | en |
| dc.subject.translated | edge detection | en |
| dc.title | An automatic stopping criterion for nonlinear anisotropic diffusion | en |
| dc.type | článek | cs |
| dc.type | article | en |
| dc.type.status | Peer-reviewed | en |
| dc.type.version | publishedVersion | en |
Files
Original bundle
1 - 1 out of 1 results
No Thumbnail Available
- Name:
- Bustacara-Medina.pdf
- Size:
- 3.51 MB
- Format:
- Adobe Portable Document Format
- Description:
- Plný text
License bundle
1 - 1 out of 1 results
No Thumbnail Available
- Name:
- license.txt
- Size:
- 1.71 KB
- Format:
- Item-specific license agreed upon to submission
- Description: