RPG Seminar – Dynamic Speckle analysis using event-based vision
Date:
31 Aug, 2021 (Tue)
Time:
10:30 am
Webinar Link:
https://hku.zoom.us/j/96601442085?pwd=U3BZbWM5Tm1FZy95VGNNSFdjUjBldz09

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Speaker

Mr. Zhou GE,
Department of Electrical and Electronic Engineering
The University of Hong Kong

Abstract

Dynamic speckle analysis (DSA) is a non-contact method to obtain the motion information about the inspected sample. Conventional implementations analyze the speckle patterns from time-varying intensity frames using frame-based sensors such as a complementary metal oxide semiconductor (CMOS) and charge-coupled device (CCD). Here, we propose to use the event sensor which measures pixel-wise asynchronous brightness changes to record speckle pattern sequences. Our approach takes advantage of the low latency and high contrast sensitivity of the event sensor to implement DSA with high temporal resolution. Experimental results show that the event-based representation is a new optimal solution for DSA especially for high speed applications.

 

Zoom Link (during COVID-19 special period):
https://hku.zoom.us/j/96601442085?pwd=U3BZbWM5Tm1FZy95VGNNSFdjUjBldz09

 

Biography of the speaker:
Zhou Ge received the B.S. degree in communication engineering from Fudan University, and the MSc degree in electrical and electronic engineering from Imperial College London. He is currently pursuing the Ph.D. degree in the Department of Electrical and Electronic Engineering, University of Hong Kong. His research interests include speckle sensing, event sensor and computational imaging.

 

All are welcome.


Organizer

Prof. E.Y.M. Lam

Most seminars are open to the general public, free of charge, unless otherwise stated. Registration is not required. Arrangement for car parking facilities on campus please contact us for details.

For enquiries, please contact:
Department of Electrical and Electronic Engineering,
Room 601, Chow Yei Ching Building,
Pokfulam Road, Hong Kong
Tel: (852) 3917 7093
Email: seminar@eee.hku.hk