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Describing Hand Postures: Inspirations from Classical ‘Mudras’
ISSN: 0148-7191, e-ISSN: 2688-3627
Published June 17, 2008 by SAE International in United States
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The objective of this work is to develop a systematic methodology for describing hand postures and grasps which is independent of the kinematics and geometry of the hand model which in turn can be used for developing a universal referencing scheme. It is therefore necessary that the scheme be general enough to describe the continuum of hand poses. Indian traditional classical dance form, “Bharathanatyam”, uses 28 single handed gestures, called “mudras”. A Mudra can be perceived as a hand posture with a specific pattern of finger configurations. Using modifiers, complex mudras could be constructed from relatively simple mudras. An adjacency matrix is constructed to describe the relationship among mudras. Various mudra transitions can be obtained from the graph associated with this matrix. Using this matrix, a hierarchy of the mudras is formed. A set of base mudras and modifiers are used for describing how one simple posture of hand can be transformed into another relatively complex one. A canonical set of predefined hand postures and modifiers can be used in digital human modeling to develop standard hand posture libraries.
CitationVipin, J. and Sen, D., "Describing Hand Postures: Inspirations from Classical ‘Mudras’," SAE Technical Paper 2008-01-1904, 2008, https://doi.org/10.4271/2008-01-1904.
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