Fast motion estimation of one-dimensional laser speckle image and its application on real-time audio signal acquisition

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Vibration measurement using laser speckle image, which can precisely detect object vibration without contacting target object, is an appealing topic. However, due to the limitation of image processing speed, previous researches on this topic have not achieved high-speed real-time detection and regeneration of audio signal. In this manuscript, we detect object vibration using one-dimensional laser speckle image. A fast and sub-pixel accuracy algorithm has been proposed to estimate the displacement of captured one-dimensional laser speckle images. Experiment results show that the proposed system can achieve 20kHz rea-time sampling rate, and the high frequency audio signal can be restored with high quality in real time.

Original languageEnglish
Title of host publicationICCIP 2020 - 2020 6th International Conference on Communication and Information Processing
PublisherAssociation for Computing Machinery
Pages128-134
Number of pages7
ISBN (Electronic)9781450388092
DOIs
Publication statusPublished - 2020 Nov 27
Event6th International Conference on Communication and Information Processing, ICCIP 2020 - Virtual, Online, Japan
Duration: 2020 Nov 272020 Nov 29

Publication series

NameACM International Conference Proceeding Series

Conference

Conference6th International Conference on Communication and Information Processing, ICCIP 2020
Country/TerritoryJapan
CityVirtual, Online
Period20/11/2720/11/29

Keywords

  • Image processing
  • Laser speckle image
  • Line-scan sensor
  • Real-time system

ASJC Scopus subject areas

  • Software
  • Human-Computer Interaction
  • Computer Vision and Pattern Recognition
  • Computer Networks and Communications

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