Real-time audio detection and regeneration of moving sound source based on optical flow algorithm of laser speckle images

Nan Wu, S. Haruyama

研究成果: Article査読

13 被引用数 (Scopus)

抄録

Sound detection with optical means is an appealing research topic. In this manuscript, we proposed a laser microphone system allowing simultaneous detection and regeneration of the audio signal by observing the movement of secondary speckle patterns. In the proposed system, optical flow method, along with some denoising algorithms are employed to obtain the motion information of the speckle sequence with high speed. Owing to this, audio signal can be regenerated in real time with simple optical setup even the sound source is moving. Experiments have been conducted and the results show that the proposed system can restore high quality audio signal in real time under various conditions.

本文言語English
ページ(範囲)4475-4488
ページ数14
ジャーナルOptics Express
28
4
DOI
出版ステータスPublished - 2020 2月 17

ASJC Scopus subject areas

  • 原子分子物理学および光学

フィンガープリント

「Real-time audio detection and regeneration of moving sound source based on optical flow algorithm of laser speckle images」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル