Title :
Fourier Tag: A Smoothly Degradable Fiducial Marker System with Configurable Payload Capacity
Author :
Xu, Anqi ; Dudek, Gregory
Author_Institution :
Sch. of Comput. Sci., McGill Univ., Montreal, QC, Canada
Abstract :
We describe the design and implementation of a fiducial marker system that encodes data in the frequency spectrum of a synthetic image. This distinctive approach to marker synthesis and data encoding allows for partial data extraction in adverse imaging conditions, and can significantly extend the detection range through graceful data degradation. Additional digital encoding and image construction techniques are used to increase the payload capacity, and also to store 3-D pose information in each fiducial marker. This fiducial marker scheme can be configured to match the needs of the target application. We present several experiments investigating the practical range of various parameters as well as the performance of a specific instance of the system.
Keywords :
image coding; image matching; mark scanning equipment; object detection; Fourier tag; adverse imaging conditions; configurable payload capacity; data degradation; data encoding; digital encoding; fiducial marker system; image construction techniques; marker synthesis; partial data extraction; synthetic image frequency spectrum; Data mining; Degradation; Frequency domain analysis; Gray-scale; Noise; Payloads; Pixel; Fourier transform; Phase-Shift Keying; fiducial marker; graceful degradation;
Conference_Titel :
Computer and Robot Vision (CRV), 2011 Canadian Conference on
Conference_Location :
St. Johns, NL
Print_ISBN :
978-1-61284-430-5
Electronic_ISBN :
978-0-7695-4362-8
DOI :
10.1109/CRV.2011.13
