Studying human colour vision and colour vision deficiency through hyperspectral imaging - Lessons from John Dalton’s colour vision
| Dates: | 4 October 2016 |
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| Times: | 12:30 - 13:00 |
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| What is it: | Forum |
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| Organiser: | John Rylands Research Institute |
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| Who is it for: | University staff, Adults, Alumni, Current University students, General public |
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| Speaker: | Dr Neil Parry, Professor David H Foster, Dr Kinjiro Amano |
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Colour perception starts with the way sensors in the eye respond to light of different wavelengths. The nature of the spectrum varies according to the type of illumination and surfaces. Three classes of sensors, cone-photoreceptors, have peak sensitivities at different positions over the visible spectrum, at nominally long, middle, and short wavelengths. Congenital defects in the cones lead to colour vision deficiency or ‘colour blindness’. It is often called ‘Daltonism’ in recognition of John Dalton’s observation of his own deficient colour experience. To understand the impact of colour vision deficiency, it is helpful to examine cone responses to surfaces in natural scenes under different lighting acquired by hyperspectral imaging. This seminar will describe colour vision deficiencies and the application of hyperspectral imaging to research in colour vision and spectral analysis of historical manuscripts. Using portable virtual-reality devices individuals will be able to experience the visual world of the colour blind.
Speakers
Dr Neil Parry
Role: Consultant Clinical Scientist
Organisation: Manchester Royal Eye Hospital
Biography: Dr Neil Parry is Consultant Clinical Scientist at Manchester Royal Eye Hospital, head of the regional Ophthalmic Electrodiagnostic Service, Honorary Professor of Vision Science at Bradford University and Honorary Senior Lecturer at the University of Manchester. His research into retinal and cortical mechanisms of human colour vision involves both electrophysiology and psychophysics.
Professor David H Foster
Role: Professor of Vision Systems
Organisation: School of Electrical and Electronic Engineering, University of Manchester
Biography: Professor David H. Foster is Professor of Vision Systems in the School of Electrical and Electronic Engineering, University of Manchester, and formerly Head of the Sensing, Imaging, and Signal Processing Group and Director of Research in the School. His research interests are in vision, hyperspectral imaging, and mathematical modelling.
Dr Kinjiro Amano
Role: Senior Researcher
Organisation: School of Electrical and Electronic Engineering, University of Manchester
Biography: Dr Kinjiro Amano is a senior researcher at School of Electrical and Electronic Engineering, University of Manchester. His research concentrates human surface colour vision with psychophysics, colour appearance, hyperspectral imaging and analysis, and works in collaboration with Life Sciences, Mechanical, Aerospace and Civil Engineering, and Psychological Sciences.
Travel and Contact Information
Find event
The Christie Room
John Rylands Research Institute and Library
150 Deansgate
Manchester
Gtr Manchester
