Name
Abstract | ||
|---|---|---|
We present a new measure of image focus. It is based on wavelet transform of the image and is defined as a ratio of high-pass band and low-pass band norms. We show this measure is monotonic with respect to the degree of defocusation and sufficiently robust. We experimentally illustrate its performance on simulated as well as real data and compare it with existing focus measures (gray-level variance and energy of Laplacian). Finally, an application of the new measure in astronomical imaging is shown. |
Year | DOI | Venue |
|---|---|---|
2002 | 10.1016/S0167-8655(02)00152-6 | Pattern Recognition Letters |
Keywords | DocType | Volume |
high pass,wavelet transform,low pass | Journal | 23 |
Issue | ISSN | Citations |
14 | Pattern Recognition Letters | 30 |
PageRank | References | Authors |
2.67 | 6 | 4 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Jaroslav Kautsky | 1 | 108 | 20.75 |
| Jan Flusser | 2 | 3067 | 215.61 |
| Barbara Zitová | 3 | 2000 | 105.15 |
| Stanislava Simberová | 4 | 43 | 6.77 |