Abstract
In this paper, an innovative approach for detecting and analyzing speckle pattern signals is demonstrated, based on dynamic speckle analysis using a low-cost and low-framerate rolling shutter (RS) CMOS image sensor. The row scanning mechanism of a rolling shutter camera samples dynamic speckle patterns at a higher rate than typical Global Shutter (GS) cameras. In this research we demonstrate the detection and analysis of vibration signals that arise from an acoustic signal. We will illustrate the process of reconstructing a voice signal by analyzing a vibrating speckle pattern, with a primary focus on detecting and audibly capturing lung sounds.
| Original language | English |
|---|---|
| Title of host publication | Biomedical Spectroscopy, Microscopy, and Imaging III |
| Editors | Jurgen Popp, Csilla Gergely |
| Publisher | SPIE |
| ISBN (Electronic) | 9781510673281 |
| DOIs | |
| State | Published - 2024 |
| Event | Biomedical Spectroscopy, Microscopy, and Imaging III 2024 - Strasbourg, France Duration: 8 Apr 2024 → 12 Apr 2024 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 13006 |
| ISSN (Print) | 0277-786X |
| ISSN (Electronic) | 1996-756X |
Conference
| Conference | Biomedical Spectroscopy, Microscopy, and Imaging III 2024 |
|---|---|
| Country/Territory | France |
| City | Strasbourg |
| Period | 8/04/24 → 12/04/24 |
Bibliographical note
Publisher Copyright:© 2024 SPIE.
Keywords
- laser speckle
- rolling-shutter
- spectroscopy