About the Course
The aim of the course is to provide participants with a basic hands on introduction to the theory and practical application of hyperspectral imaging (HSI), and specifically hyperspectral chemical imaging (HCI) in food sector. Hyperspectral imaging adds a new dimension, spectroscopy, to traditional imaging techniques. Conversely, it adds spatial information to traditional spectroscopic analysis methods. In the context of HCI, this hybridization of imaging and spectroscopy demands proper multivariate chemometric techniques to fully enable the optimum extraction of relevant chemical information. HCI is also a rich source of easily interpretable data to visually extend and explore the implications of use (and misuse) of chemometric techniques.
This imaging workshop will combine lectures and live demonstrations presenting some of the basic developments in HSI, and explore the extension of chemometrics to HCI image processing. Topics discussed will include instrumentation, exploratory analysis, classification, regression, and spectral pre-processing. Each topic session will begin with a mixture of basic theory and fundamental application results, followed by an interactive examination of class-room samples, using a HyperPro™ near infrared (NIR) hyperspectral imaging system.
Topics CoveredGeneral introduction - history; Spectroscopy, Imaging, Hyperspectral imaging, Instrumentation
Exploratory Analysis; Spatial and spectral browsing, Principal Components Analysis (PCA), Brushing
Classification; Theory introduction, Partial Least Squares – Discriminant Analysis (PLS-DA)
Regression techniques; Theory introduction, Partial Least Squares (PLS)
Spectral pre-treatments; Theory introduction, Derivatives, MSC, PMSC, SNV
Advanced topics, Curve Resolution, Alternate classifications, Bad pixels, Variable selection, Uncertainty, Summary
Who should attendThis course is intended for students, specialists, and scientists with an interest in exploring recent advancements in spectroscopy and imaging. No previous experience with HSI / HCI or chemometrics is also expected. The course language will be English
Pre-requisitesNo previous experience with HSI / HCI or chemometrics is also expected.
What you need to bringRegistered Participants are encouraged to bring their own application specific samples (up to 50 x 30 mm) for imaging to enhance the workshop discussion and learning experience.
Key TakeawaysHyperspectral imaging, multivariate chemometric techniques, NIR Spectroscopy etc...