Reading color barcodes using visual snakes. | Zendy

Hanspeter Schaub | Zendy

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Reading color barcodes using visual snakes.

Author(s) -

Hanspeter Schaub

Publication year - 2004

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/974883

Subject(s) - hue , computer vision , bar (unit) , artificial intelligence , computer science , color space , code (set theory) , hsl and hsv , tracking (education) , skin color , eye tracking , computer graphics (images) , pattern recognition (psychology) , geography , image (mathematics) , psychology , pedagogy , virology , meteorology , biology , programming language , virus , set (abstract data type)

Statistical pressure snakes are used to track a mono-color target in an unstructured environment using a video camera. The report discusses an algorithm to extract a bar code signal that is embedded within the target. The target is assumed to be rectangular in shape, with the bar code printed in a slightly different saturation and value in HSV color space. Thus, the visual snake, which primarily weighs hue tracking errors, will not be deterred by the presence of the color bar codes in the target. The bar code is generate with the standard 3 of 9 method. Using this method, the numeric bar codes reveal if the target is right-side-up or up-side-down

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