This camera-based imaging system is designed for visual assessment of products appearance.
The visual aspect of products, and especially food products, is strongly linked with quality in consumers' mind. Therefore color and appearance are crucial sensory parameters for products success and need to be reliably and consistently monitored.
By achieving instrumental analysis of the overall visual appearance, both color measurement and shape analysis, IRIS machine vision addresses the industrial needs for visual quality control and inspection systems.
Samples are placed on a removable tray in the closable cabin where an image is captured under controlled lighting and measurement conditions, with no influence of outside lighting. Its detection, and data processing method make it a unique instrument.
IRIS Visual Analyzer is based on high resolution imaging in a closable measurement chamber under controlled D50 compliant lighting conditions, with automated color calibration against a certified
color checker. Picture acquisition is achieved by a CMOS camera (16 million colors, software-monitored). Data processing is done on both colors (color codes)and shapes parameters (
circularity, aspect ratio, Hu moments) on the picture of the whole product.
A common and unique platform of the AlphaSoft software monitors all electronic noses, electronic tongue and electronic eye from Alpha MOS range. Compatible with Windows XP/Vista/7/8, AlphaSoft is available in 7 languages: English, French, Spanish, German, Japanese, Chinese, Korean. AlphaSoft uses multivariate statistical analysis and chemometrics to acquire, compute and interpret visual analyzer measurements.
The picture acquired with IRIS Visual Analyzer can be pre-processed to remove background data for the analysis, visualize the distribution of colors, get information on shape data (circularity, aspect ratio, surfaces, etc)
|Color spectrum showing the area percentage of each single color||Color primitives graph provides even distribution of color differences in the image||Shape descriptors table giving information about circularity, aspect ratio, etc|
AlphaSoft also offers various statistical data processing models and different decision tools for qualitative or quantitative analysis in visual assessment:
Principal Components Analysis (PCA)
Discrimination Factorial Analysis (DFA)
|Statistical Quality Control||Shelf life over time||Partial Least Square (PLS)|
Comparison of numerous samples
Odor / VOC map
Pass/fail or sample qualification
Prediction for new samples
Odor / chemical change over time
|Prediction of quantitative parameters: concentration, sensory attribute intensity|