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The location of wires in the canopy of grapevines is critical information required when planning the path of a robotic arm used in an automated vine pruning system. The cost of colliding with or inadvertently cutting a wire is severe and thus it is important to have a robust wire detection system that is capable of accurately locating wires. This paper proposes a system for detecting pixels with a...
This paper proposes a real-time application for detecting the moves of a chess game given a video stream from a camera positioned over the board. A custom implementation based on square identification of flood filled regions is used to detect colored chessboards in arbitrary backgrounds. The detected board is transformed to a normalized image, and occupancy of the chessboard is determined by classifying...
In this paper we examine the causes of one of the major shortcomings of current natural feature registration approaches, failure to register when the camera's view approaches parallel to the marker. The methods used by current registration algorithms in the attempt to overcome this problem are reviewed, and a novel tracking based approach called the Optical-flow Perspective Invariant Registration...
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