Double-Tip Artefact Removal from Atomic Force Microscopy Images
| Autor: | Suzanne P. Jarvis, David Corrigan, Anil Kokaram, Francis M. Boland, Jason I. Kilpatrick, Yun-feng Wang |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Surface (mathematics)
Image formation Deblurring Artifact (error) Materials science business.industry Resolution (electron density) 02 engineering and technology 021001 nanoscience & nanotechnology Computer Graphics and Computer-Aided Design Feature (computer vision) 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing Computer vision Artificial intelligence 0210 nano-technology Focus (optics) business Software Asperity (materials science) |
| Zdroj: | IEEE transactions on image processing : a publication of the IEEE Signal Processing Society. 25(6) |
| ISSN: | 1941-0042 |
| Popis: | The atomic force microscopy (AFM) allows the measurement of interactions at interfaces with nanoscale resolution. Imperfections in the shape of the tip often lead to the presence of imaging artifacts, such as the blurring and repetition of objects within images. In general, these artifacts can only be avoided by discarding data and replacing the probe. Under certain circumstances (e.g., rare, high-value samples, or extensive chemical/physical tip modification), such an approach is not feasible. Here, we apply a novel deblurring technique, using a Bayesian framework, to yield a reliable estimation of the real surface topography without any prior knowledge of the tip geometry (blind reconstruction). A key contribution is to leverage the significant recently successful body of work in natural image deblurring to solve this problem. We focus specifically on the double-tip effect, where two asperities1 are present on the tip, each contributing to the image formation mechanism. Finally, we demonstrate that the proposed technique successfully removes the double-tip effect from high-resolution AFM images, which demonstrate this artifact while preserving feature resolution.1 An asperity is a localized sharp peak in the surface of an object. |
| Databáze: | OpenAIRE |
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