Measure Light & Color Across Entire Instrument Panels

Radiant Vision Systems, Test & Measurement

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Auto-POI (Automatic Points of Interest) is the first software tool to offer truly automated light and color measurement for indicators across entire instrument clusters, regardless of shape, size, color, or location. The latest feature in Radiant Vision Systems TrueTest™ light measurement software, Auto-POI allows manufacturers to measure multiple sets of illuminated symbols simultaneously without drawing points of interest around each symbol within an image. Instead, engineers can define adaptive tolerances by entering luminance and chromaticity thresholds as numeric data points in the software, enabling Auto-POI to automatically identify which pixels in the captured image qualify for analysis, regardless of their spatial position. For instance, a luminance threshold can be set to capture all symbols in an image that meet a minimum luminance value (for example, 20% the brightness of the highest luminance value in an image).

CIE chromaticity limits (minimum and maximum x,y or u’,v’ coordinates) can be set to further segment out target colored symbol sets from those of a common luminance set (for instance, red or blue symbols with the same luminance minimum). Auto-POI automatically identifies points of interest as connected blobs of pixels that meet these programmed values, limiting points of interest to only the illuminated pixels and excluding background data and noise. Because Auto-POI locks onto each symbol dynamically, the Auto-POI functionality enables the software to capture symbols even if a panel moves in respect to the imaging system. Regardless of the position of the instrument panel, the orientation of the camera, or the arrangement of symbols on a panel (such as a new line of panels entering production), Auto-POI can quickly snap onto target symbol sets within the inspection area based on the programmed light and color values. This enables the most adaptive and reliable in-line evaluation method for light and color quality and harmonization.

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