RHOPOINT TAMS (Total Appearance Measurement System)

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RhopointFor maximum impact, an automotive paint finish must instantly produce an appealing visual sensation for the customer. This can only be achieved if the overall surface finish displays both high QUALITY and HARMONY.

Description

TAMS™ Total Appearance Measurement System

Next Generation Paint Quality Instrument: Setting New Standards in Appearance Measurement

In cooperation with Volkswagen AG & AUDI AG

Measurements that closely correlate to human perception are easier to understand and communicate.

For maximum impact, an automotive paint finish must instantly produce an appealing visual sensation for the customer. This can only be achieved if the overall surface finish displays both high QUALITY and HARMONY.

TAMS™ is a new way of quantifying appearance quality inspired by a four-year collaboration between Rhopoint, Volkswagen AG and AUDI AG. This innovative new technology models the human perception of surface appearance quality, providing new parameters that revolutionise the understanding and communication of visual appearance information.

Improved correlation and easy communication gives TAMS™ a major advantage over existing methods that produce complex results relying on the user to interpret the values into a real-life visual experience.

TAMS™ technology provides opportunities to IMPROVE SURFACE FINISH, establish IMPROVED QUALITY CRITERIA and REMOVE SUBJECTIVITY IN VISUAL ASSESSMENT.

DEFINES

QUALITY

One single value rates the total appearance quality of a surface. 100% indicates a smooth finish with perfect image forming characteristics. TAMS™ quality is calculated using waviness and sharpness values predicting the visual rating of the customer

HARMONY

Based on extensive human perception research by AUDI AG, this value indicates the acceptability of adjacent car parts. It is calculated using Waviness and Dimension parameters. A value of >1.0 indicates parts are not similar and if viewed together will detract from overall visual quality.

PERCEPTION

Data from the TAMS™ vision system is processed using perception algorithms derived from extensive human perception studies.

CONTRAST

Contrast is related to the color of the surface; white and metallic surfaces have low contrast, a deep black measures 100%.
Contrast quantifies the visual impact of orange peel and haze effects both being more visible on high contrast dark colors

SHARPNESS

Sharpness quantifies the accuracy of images reflected in the surface, 100% indicates a perfect reflection. At close distances (<0.5m) SHARPNESS measures how well surface reflects fine details. At showroom viewing distance (1.5m) SHARPNESS quantifies haze and clarity.

WAVINESS

Correlated to human perception, waviness quantifies the visible impact of surface waves to an observer at showroom distance (1.5m). The waviness of a surface is critical for determining appearance quality. Low waviness surfaces tend to be preferred by the viewer.

DIMENSION

Indicates the dominant structure size perceived at showroom viewing distance. Typical values are between 1– 6mm, the dominant structure size is important in determining the harmony between adjacent panels/parts.

TAMS™ VISION

To achieve close correlation with human perception TAMS™ emulates the human evaluation of a reflective surface, changing its imaging system focus from surface to reflected image.

APPLICATION OPTIONS

TAMS™ is able to capture surface data for mid gloss and high gloss surfaces offering the possibility of measuring all surfaces throughout the automotive manufacturing process – steel and aluminium, E-Coat as well as filler, base coat and top coat

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