Fiducial detection system

Details Fiducial detection system Fiducial detection system

2007-06-12

2007-06-12

Ahmed, Samir (Department: 2624)

Image analysis

Applications

Target tracking or detecting

C348S169000

Reexamination Certificate

active

10215503

ABSTRACT:
A new fiducial design allows having thousands of different codes. These fiducials are printed on a standard black-and-white (or color) printer and easily could be mounted on a walls, ceiling and objects in a room. The design includes “solid” outside mono-color ring and 2-D dense inside coding scheme. Image processing algorithms are implemented in Smart Camera with a built-in DSP to run all required image-processing tasks. A tracking system implementation includes an inertial measurement unit and one outward-looking wide-angle Smart Camera with possible extensions to number of stationary inward-looking cameras. The system operates in various real-world lighting conditions without any user intervention due to homomorphic image processing processes for extracting fiducials in the presence of very non-uniform lighting.

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