Noise Reduction of a Photoacuoustic Microscopy Image According to Reorganizing of Ultrasound Signals

JIITA, vol. 3, no. 1, pp.246-252, 2019 DOI: 10.22664/ISITA.2019.3.1.246

Jaesung Kong 1), Wyju Jin 1), Jin Young Kim 2), Hae Young Choi 1,*)

1) Country Daegu-Gyeongpuk Medical Innovation Foundation, Daegu, Republic of Korea
2) Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea

Abstract: Photoacoustic microscopy (PAM) is an innovative imaging technology due to its distinctive physical features comparing with optical or acoustic systems. The biggest issues for this technology are to improve operating speed, spatial resolution, signal-to-noise ratio (SNR) and equipment’s volume for commercialization. Herein we propose a noise reduction algorithm by reorganization of ultrasound signal without sacrificing any spatial resolution or operating speed. This algorithm was implemented by using LabVIEW software and then evaluated with actual PAM data. The results show that maximum 74% of noise could be reduced. Based on the results of the noise analysis, we has been reconstructed the PAM images, analyzed these. Finally, we confirmed that the proposed method can improve the sharpness of the image and reduce the noise.

Keyword: Photoacoustic; SNR; reorganization; ultrasound; real-time system


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