27 October 2006 Influence of [ω]-filter on photoacoustic imaging
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Proceedings Volume 6047, Fourth International Conference on Photonics and Imaging in Biology and Medicine; 60470G (2006) https://doi.org/10.1117/12.709910
Event: Fourth International Conference on Photonics and Imaging in Biology and Medicine, 2005, Tianjin, China
Abstract
Photoacoustic tomography is a potential and noninvasive medical imaging technology. It combines the advantages of pure optic imaging and pure ultrasound imaging. We have explored photoacoustic imaging with different filters, such as RL, SL, Modi-SL arid Kwoh-Reed, which take important roles on reconstructed images. The results of simulations and experiments show that the filter of Kwoh-Reed can restrain noise effectively and improve the contrast of images compares with the filters of RL, SL, ModiSL in the presence of strong noise. A Q-switched Nd:YAG laser operating at 532nm was used as light source. The laser had a pulse width of 7ns and a repetition frequency of 30Hz. A needle PVDF hydrophone with diameter of I mm was used to detect photoacoustic signals.
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Yi Tan, Yi Tan, Da Xing, Da Xing, Diwu Yang, Diwu Yang, } "Influence of [ω]-filter on photoacoustic imaging", Proc. SPIE 6047, Fourth International Conference on Photonics and Imaging in Biology and Medicine, 60470G (27 October 2006); doi: 10.1117/12.709910; https://doi.org/10.1117/12.709910
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