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11-16 April 2026
Conference 13006 > Paper 13006-55
Paper 13006-55

Rolling-shutter laser speckle analysis in bio-photonics

11 April 2024 • 10:50 - 11:10 CEST | Etoile B, Niveau/Level 1

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.

Presenter

Sammy Apsel
Bar-Ilan Univ. (Israel)
Sammy Apsel is a MSc student at the Optical Neuroimaging Lab at Bar-Ilan where he researches and explores optical methods to measure human biological signals. Sammy has completed his BSc in Electrical Engineering at the Technion in 2022, specializing in biological signal processing, image processing and communication. His primary interest lies in utilizing engineering tools to tackle biomedical challenges.
Presenter/Author
Sammy Apsel
Bar-Ilan Univ. (Israel)
Author
Vika Tarle
Bar-Ilan Univ. (Israel)
Author
Michal Yemini
Bar-Ilan Univ. (Israel)
Author
Bar-Ilan Univ. (Israel)
Author
Nisan Ozana
Bar-Ilan Univ. (Israel)