Application of digital signal processing techniques to synthetic aperture focusing technique images
| Autor: | L.G. Ullate, O. Martinez, M.A.G. Izquierdo, M. Parrilla |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Engineering
business.industry Image quality Pipeline (computing) ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Metals and Alloys Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials Apodization Digital image processing Ultrasonic sensor Digital signal Computer vision Deconvolution Artificial intelligence Electrical and Electronic Engineering business Telecommunications Instrumentation Digital signal processing |
| Zdroj: | Sensors and Actuators A: Physical. 76:448-456 |
| ISSN: | 0924-4247 |
| DOI: | 10.1016/s0924-4247(99)00028-x |
| Popis: | Synthetic aperture focusing technique (SAFT) has become a popular alternative to transmission–reception focused arrays (TRFA) in order to reduce hardware complexity and cost associated to ultrasonic (UT) imaging systems. A shortcoming of SAFT processing is that it introduces artifacts that distort the images. However, as SAFT is sequential, efficient digital processing algorithms can be used to improve image quality. In this paper, several digital processing techniques are proposed including apodization, deconvolution, dynamic focusing, deflection and envelope extraction. A pipeline architecture which allows execution of these algorithms in parallel for real-time imaging is also proposed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect