Resolution Improvement of Photoacoustic Imaging System Based on an Acoustic Lens with Winere Filter
| Autor: | 唐秀文 Tang Xiu-Wen, 吴泳波 Wu Yongbo, 唐志列 Tang Zhi-Lie |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Point spread function
Materials science business.industry Physics::Medical Physics Wiener filter Resolution (electron density) Physics::Optics Photoacoustic imaging in biomedicine Resolution improvement Filter (signal processing) Acoustic lens Atomic and Molecular Physics and Optics symbols.namesake Optics Computer Science::Computer Vision and Pattern Recognition symbols Deconvolution business |
| Zdroj: | ACTA PHOTONICA SINICA. 40:103-106 |
| ISSN: | 1004-4213 |
| DOI: | 10.3788/gzxb20114001.0103 |
| Popis: | In order to overcome the limitation of diffraction effect on the resolution of photoacoustic imaging system,the deconvolution method needs to be used for image retrieval.The acoustic lens imaging theory was introduced firstly,and the effect of the acoustic lens point spread function was simulated based on the resolution of acoustic lens-based imaging system and photoacoustic imaging restoration process of Wiener filter deconvolution.Using self-erected acoustic lens-based photoacoustic imaging system,the direct photoacoustic imaging pictures and the restored pictures from Wiener filter deconvolution of two dots of black adhesive tape with a distance of 4 mm and 3 mm are obtained and compared.The simulation and experimental results indicate that Wiener filter deconvolution can improve the resolution of photoacoustic imaging system. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|