Analytik, leading suppliers of innovative analytical
instrumentation to the UK and Ireland, report on developments in the uses for
multispectral imaging from Videometer.
Until recently, the quality control of variable products such as seeds, powders
or cosmetics would be subjective, time-consuming and expensive. To get
reproducible results took hours with traditional analytical techniques, and
relying on human judgement introduced errors. The VideometerLab provides a solution
at a stroke. The system photographs samples at twenty different wavelengths and
then through the application of sophisticated statistical software, the
detection and characterisation of contaminants as small as 45 microns (the size
of a pollen grain) is possible. The VideometerLab can operate at wavelengths
outside human vision - Near Infrared and Ultraviolet - and therefore useful
information may be generated about texture, water saturation and fluorescence
behaviour.
The system has been designed for fast analysis with minimum user interaction.
It can automatically detect features which the user has previously defined as
important. For example, it is a simple task to identify an out-of-specification
tablet in a single measurement taking 6 seconds, or automatically detect
Fusarium infection on barley grains. The analysis uses a combination of
wavelength response and geometric information.
Multispectral imaging first appeared in the late 80's but has only recently
been adopted with imaging techniques becoming less expensive, more reliable and
rapid. The VideometerLab provides a cost-effective alternative to comparable
systems. It operates non-destructively in ten seconds or less and is delicate
enough to use on extremely fragile materials.
Cambridge-based Analytik are the exclusive UK and Ireland distributors of the
VideometerLab. To learn more about multispectral imaging and its applications,
visit:
www.analytik.co.uk
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