Reports from Royal Melbourne Institute of Technology University Highlight Recent Findings in Life Science Research (Flower colours through the lens: quantitative measurement with visible and ultraviolet digital photography)
By a News Reporter-Staff News Editor at Life Science Weekly -- Investigators discuss new findings in Life Science Research. According to news reporting from Melbourne, Australia, by NewsRx journalists, research stated, "The study of the signal-receiver relationship between flowering plants and pollinators requires a capacity to accurately map both the spectral and spatial components of a signal in relation to the perceptual abilities of potential pollinators. Spectrophotometers can typically recover high resolution spectral data, but the spatial component is difficult to record simultaneously."
The news correspondents obtained a quote from the research from the Royal Melbourne Institute of Technology University, "A technique allowing for an accurate measurement of the spatial component in addition to the spectral factor of the signal is highly desirable. Consumer-level digital cameras potentially provide access to both colour and spatial information, but they are constrained by their non-linear response. We present a robust methodology for recovering linear values from two different camera models: one sensitive to ultraviolet (UV) radiation and another to visible wavelengths. We test responses by imaging eight different plant species varying in shape, size and in the amount of energy reflected across the UV and visible regions of the spectrum, and compare the recovery of spectral data to spectrophotometer measurements. There is often a good agreement of spectral data, although when the pattern on a flower surface is complex a spectrophotometer may underestimate the variability of the signal as would be viewed by an animal visual system. Digital imaging presents a significant new opportunity to reliably map flower colours to understand the complexity of these signals as perceived by potential pollinators. Compared to spectrophotometer measurements, digital images can better represent the spatio-chromatic signal variability that would likely be perceived by the visual system of an animal, and should expand the possibilities for data collection in complex, natural conditions."
According to the news reporters, the research concluded: "However, and in spite of its advantages, the accuracy of the spectral information recovered from camera responses is subject to variations in the uncertainty levels, with larger uncertainties associated with low radiance levels."
For more information on this research see: Flower colours through the lens: quantitative measurement with visible and ultraviolet digital photography. Plos One, 2014;9(5):e96646. (Public Library of Science - www.plos.org; Plos One - www.plosone.org)
Our news journalists report that additional information may be obtained by contacting J.E. Garcia, School of Media and Communication, RMIT University, Melbourne, Victoria, Australia. Additional authors for this research include A.D. Greentree, M. Shrestha, A. Dorin and A.G Dyer (see also Life Science Research).
Keywords for this news article include: Melbourne, Australia, Australia and New Zealand, Life Science Research.
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