Event Details

Date:
Wednesday, 29 March 2017
Time:
11:00 am - 12:00 pm
Room:
QBI Level 7 Auditorium
UQ Location:
Queensland Brain Institute (St Lucia)
URL:
http://www.qbi.uq.edu.au/neuroscience-seminars
Event category(s):

Event Contact

Name:
Ms Deirdre Wilson
Phone:
3346 6300
Email:
d.wilson5@uq.edu.au
Org. Unit:
Queensland Brain Institute

Event Description

Full Description:
Professor Scott Tyo
Head of the School of Engineering and IT, UNSW Canberra at the Australian Defence Force Academy, Canberra
Title: "Do You see What I See? Exploiting advanced properties of light and mimicking biological vision systems to develop new imaging and sensing methods"
Abstract:
Conventional optical imaging sensors respond to irradiance in a small number of spectral bands on a specific image plane. However, there are other properties of the light field such as polarisation, coherence, detailed spectral information, and angle of arrival that can be used to learn much more about the scene of interest. Several species of animals, notably marine invertebrates, are known to have polarisation sensitive vision systems and high spectral resolution, which enable predation, camouflage defeat, and likely even signaling.
While spectral details of light carry information about the chemistry of the materials that make up a scene, polarisation tends to carry information about shape, orientation, and surface roughness. In that way, spectral and polarisation details are often orthogonal information channels that can be simultaneously exploited for improved target detection in cluttered or turbid environments. Most optical detectors are inherently polarisation insensitive, so it is necessary to modulate the measured intensity of the light in a polarisation-dependent way in order to compute the polarisation details. In our group, we are studying the classes of active and passive channelled polarimeters that use modulation strategies that create side bands in space, time, wavelength, and angle of incidence that can be used to gather polarisation details. This presentation will motivate polarisation vision and imaging systems, and discuss the basic ways that polarisation can be measured. Recent results from the design and analysis of active, multi-domain modulation schemes will be presented that push the limits of system resolution.


 

Directions to UQ

Google Map:
Directions:
To St Lucia Campus, UQ Ipswich, and UQ Gatton.

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