| EPSRC Reference: |
EP/B000257/1 |
| Title: |
Mechanisms underlying visual coding of surface colour in natural scenes |
| Principal Investigator: |
Foster, Professor DH |
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| Department: |
Electrical and Electronic Engineering |
| Organisation: |
University of Manchester, The |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 August 2004 |
Ends: |
31 January 2008 |
Value (£): |
300,029
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| EPSRC Research Topic Classifications: |
| Vision & Senses - ICT appl. |
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Summary on Grant Application Form |
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We perceive the world as stable despite variations in the lighting: if we look at a patch of green grass under a blue sky and then later at sunset, the colour of the grass seems unchanged. But the spectrum of the reflected light reaching the eye differs in the two situations, first more blue and then more red. The constant appearance of surface colour despite changes in the colour of the illumination--and scene composition and configuration-is assumed fundamental to colour vision, allowing the primitive foraging for ripe fruit in a tree canopy, to the modern use of textiles, cosmetics, and packaging. Yet the evidence that visual colour constancy exists is equivocal: most experiments do not measure colour constancy, but other aspects of scene-perception, such as the relationship between surface colours, or illumination colour. This project will use complementary psychophysical methods and data from hyperspectral imaging of natural scenes to understand better how we perceive and memorize surface colours. Experiments will determine the limits on how absolute and relative information about surface colour is coded, how that information is affected by memory, and how current theories of surface-colour coding need to be modified to account for actual human performance.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.man.ac.uk |