Removing frequency dependent aberrations in acoustic microscopy
| Autor: | Ari Salmi, Antti Meriläinen, Oskari Tommiska, Joni Makinen, Edward Haggstrom, Jere Hyvonen |
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| Přispěvatelé: | Materials Physics |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
business.industry Image quality education Ultrasound Acoustic microscopy 114 Physical sciences behavioral disciplines and activities Signal Optics Feature (computer vision) Microscopy otorhinolaryngologic diseases Focal length Ultrasonic sensor sense organs business psychological phenomena and processes |
| Zdroj: | 2019 IEEE International Ultrasonics Symposium (IUS). |
| Popis: | In acoustic microscopy, a focused high frequency ultrasonic pulse is used to nondestructively image samples. The ultrasound signal is focused with an acoustic lens. In case of a broadband signal, the final image can feature aberrations, caused by frequency dependent changes in focal distance of the acoustic lens. By understanding the frequency dependency of the focal distance, one can remove such aberrations, resulting in higher image quality. We present results of our work towards removing the frequency dependent aberrations from an acoustic image. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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