Analysis of Fractional Difference Schemes with Application to Radiographic Images
| Autor: | D Branimir Reljin, P Milorad Paskaš, S Irini Reljin |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Radiation
Computer Networks and Communications business.industry Radiography education Fractional calculus fractional derivative 020206 networking & telecommunications 02 engineering and technology radiographic images humanities lcsh:Telecommunication lcsh:TK5101-6720 Signal Processing 0202 electrical engineering electronic engineering information engineering Media Technology 020201 artificial intelligence & image processing image enhancement business Nuclear medicine gradient operators Software Mathematics |
| Zdroj: | Telfor Journal, Vol 10, Iss 1, Pp 62-67 (2018) |
| ISSN: | 1821-3251 |
| Popis: | Visual inspection of radiographic images by radiologists is a regular practice in making a diagnosis. Thus the enhancement of details in radiographs can improve inspection and diagnosis certainty. Through this paper we perform the analysis of the fractional gradient for visual improvement of chest radiographs. Two implementations of the fractional derivative operator, based on central fractional differences, are evaluated. Also we tested two norms for calculation of the magnitude of the fractional gradient, Euclidean and infimum norm, and the conducted tests for both norms are consistent. |
| Databáze: | OpenAIRE |
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