READ CURVED VISUAL MARKS

READ CURVED VISUAL MARKS

According to examples, an apparatus may include a processor and a non-transitory computer readable medium on which is stored instructions that may cause the processor to create a 2D reference mesh for an image of a curved visual mark, establish correspondences between finder pattern points in the cu...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Teichrieb, Veronica, Polese Cossio, Lucio, Chaves, Thiago de Menezes, Silva do Monte Lima, João Paulo, Teixeira, João Marcelo Xavier Natario, Simoes, Francisco Paulo Magalhaes, Oliveira Maggi, Lucas, Silva Figueiredo, Lucas, Albuquerque, Lucas Valença Rocha Martins de
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Beschreibung
Zusammenfassung:According to examples, an apparatus may include a processor and a non-transitory computer readable medium on which is stored instructions that may cause the processor to create a 2D reference mesh for an image of a curved visual mark, establish correspondences between finder pattern points in the curved visual mark and points of the 2D reference mesh, and determine a curved 3D mesh having a radius that results in a minimal reprojection error of a projective transform estimated for correspondences between the 2D reference mesh and the curved 3D mesh while the radius remains below a predefined upper limit. The instructions may also cause the processor to sample components of the curved visual mark in elements of the determined curved 3D mesh to form a 2D planar image of the curved visual mark and analyze the 2D planar image of the curved visual mark to read the curved visual mark.