Imaging beyond aliasing
| Autor: | A.F.W. Volker, P.L.M.J. van Neer |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Stolt migration
Aliasing Image quality Iterative method Computer science Iterative methods Beam steering Extrapolation Imaging techniques Grating Matrix algebra Inspection efficiency Imaging Reconstruction method Wavenumber-frequency domain Sampling (signal processing) Frequency domain analysis Computer vision Radio-frequency datum Medical problems TS - Technical Sciences Industrial Innovation business.industry Observation Weapon & Protection Systems Wave energy conversion Transducer Undersampling Frequency domain Wavefield extrapolation Electronic beam steering AS - Acoustics & Sonar Artificial intelligence Electronics business Focus (optics) Interpolation |
| Zdroj: | IEEE International Ultrasonics Symposium, IUS 2015, 21-24 October 2015, Taipei, Taiwan |
| Popis: | A proper spatial sampling is critical for high quality imaging. If the sampling criterion is not met, artifacts appear in the image, generally referred to as grating lobes. For inspection efficiency the width of the field of view is becoming larger leading to an increase in the number of elements and therefore transducer complexity and cost. The development of volume scanning methods in the medical field poses its own problems. Here a matrix of piezoelements is used to scan a volume using electronic beam steering. The challenge is to connect 2500+ elements using |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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