9 resultados para Macurdy, Elisha, 1763-1845.
em Boston University Digital Common
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1845 handwritten letter from Daniel Denison Whedon to Daniel A. Whedon.
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http://www.archive.org/details/bishopofmontreal00mounuoft
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http://www.archive.org/details/inojibwaycountry00scheiala
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Digitized by Google
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http://www.archive.org/details/briefhistoryofth014373mbp
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http://www.archive.org/details/memoirofhuntingt00hookuoft
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http://www.archive.org/details/lifeofstvincento00colluoft
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A vision based technique for non-rigid control is presented that can be used for animation and video game applications. The user grasps a soft, squishable object in front of a camera that can be moved and deformed in order to specify motion. Active Blobs, a non-rigid tracking technique is used to recover the position, rotation and non-rigid deformations of the object. The resulting transformations can be applied to a texture mapped mesh, thus allowing the user to control it interactively. Our use of texture mapping hardware allows us to make the system responsive enough for interactive animation and video game character control.
Resumo:
Nearest neighbor classifiers are simple to implement, yet they can model complex non-parametric distributions, and provide state-of-the-art recognition accuracy in OCR databases. At the same time, they may be too slow for practical character recognition, especially when they rely on similarity measures that require computationally expensive pairwise alignments between characters. This paper proposes an efficient method for computing an approximate similarity score between two characters based on their exact alignment to a small number of prototypes. The proposed method is applied to both online and offline character recognition, where similarity is based on widely used and computationally expensive alignment methods, i.e., Dynamic Time Warping and the Hungarian method respectively. In both cases significant recognition speedup is obtained at the expense of only a minor increase in recognition error.