An NPL imaging scientist Agnieszka Bialek won the Royal Photographic Society's Selwyn Award for her outstanding work in multi spectral imaging.
The Selwyn Award is sponsored by Imaging Science Group of The Royal Photographic Society. It was introduced in 1994 in memory of E W H Selwyn, an eminent photographic scientist. It is awarded once a year to a scientist under the age of 35 who has conducted successful science based research connected with imaging.
Multi spectral leaf
The image is a leaf. Each of the small images shows the amount of light reflected by the leaf at different wavelengths in the red region of the visible spectrum (bright areas are regions of high reflectance).
These images reveal details that cannot be observed by eye and could be used, for example, to detect early signs of plant disease.
This image was produced using an Image Replication Imaging Spectrometer (IRIS). IRIS allows information about the spatial and spectral characteristics of an object to be captured in a single snapshot, thus providing more information about an object than conventional imaging techniques.
The images captured by IRIS contain eight replicated images of the same object, each of which is for a separate spectral pass-band. This type of multi-spectral, spatially-resolved information is necessary for the complete characterisation of any material or object which shows variations in colour or appearance over its surface (e.g. wood, stone, cosmetics, textiles, packaging materials, hair and skin).
The IRIS system can be tuned to specific pass-bands in order to capture salient information for each particular application.
Multi-spectral microscopic beads
The image is a mixture of microscopic fluorescent beads of different colours, mounted on a microscope slide and illuminated using a 488 nm, 40 mW Coherent Sapphire laser.
This is a simultaneous two-colour fluorescence ima
|Contact: David Lewis|
National Physical Laboratory