SailSpy: a vision system for yacht sail shape measurement

Olof J. Olsson; P. Wayne Power; Chris C. Bowman; G. Terry Palmer; Roger S. Clist

doi:10.1117/12.132081

1 November 1992 SailSpy: a vision system for yacht sail shape measurement

Olof J. Olsson, P. Wayne Power, Chris C. Bowman, G. Terry Palmer, Roger S. Clist

Proceedings Volume 1823, Machine Vision Applications, Architectures, and Systems Integration; (1992) https://doi.org/10.1117/12.132081
Event: Applications in Optical Science and Engineering, 1992, Boston, MA, United States

Abstract

SailSpy is a real-time vision system which we have developed for automatically measuring sail shapes and masthead rotation on racing yachts. Versions have been used by the New Zealand team in two America's Cup challenges in 1988 and 1992. SailSpy uses four miniature video cameras mounted at the top of the mast to provide views of the headsail and mainsail on either tack. The cameras are connected to the SailSpy computer below deck using lightweight cables mounted inside the mast. Images received from the cameras are automatically analyzed by the SailSpy computer, and sail shape and mast rotation parameters are calculated. The sail shape parameters are calculated by recognizing sail markers (ellipses) that have been attached to the sails, and the mast rotation parameters by recognizing deck markers painted on the deck. This paper describes the SailSpy system and some of the vision algorithms used.

Citation Download Citation

Olof J. Olsson, P. Wayne Power, Chris C. Bowman, G. Terry Palmer, and Roger S. Clist "SailSpy: a vision system for yacht sail shape measurement", Proc. SPIE 1823, Machine Vision Applications, Architectures, and Systems Integration, (1 November 1992); https://doi.org/10.1117/12.132081

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