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Automated dance animation

專(zhuān)利號(hào)
US11176723B2
公開(kāi)日期
2021-11-16
申請(qǐng)人
Snap Inc.（US CA Santa Monica）
發(fā)明人
Gurunandan Krishnan Gorumkonda; Shree K. Nayar
IPC分類(lèi)
G06T13/20; G06T7/246; G06T13/80; G06T13/40
技術(shù)領(lǐng)域
animation,motion,model,audio,animations,or,in,messaging,computer,be
地域： CA CA Santa Monica

摘要

Methods, devices, media, and other embodiments are described for generating, modifying, and outputting pseudorandom animations that can be synchronized to audio data. In one embodiment, a computer animation model made up of comprising one or more control points is accessed by one or more processors, which associate motion patterns with a first control point of the one or more control points, and associate one or more speed harmonics with the first control point. A set of motion states is identify with a motion state for the combinations of possibilities, and a probability value is assigned to each motion state of the set of motion states. The probability value can be used to probabilistically determine a particular motion state to be part of displayed animation for the computer animation model.

說(shuō)明書(shū)

Thus, certain motion states can have one or more kinematic chains of bones, with the motion of a control point at the end of the kinematic chain selected as part of the motion state, and the control points within the kinematic chain determined automatically. During design of an animation, the limitations on the kinematic chain can be presented to a designer as part of an interface, with an option to create motion patterns within the limits of the range of motion for the chain. Alternatively, particular motions of a kinematic chain can be presented, with a designer selecting between possible motions. As described above, certain frameworks can include sets of motion patterns, with a designer simply assigning probabilities to preferred motions. This can function for both simple animations of a single bone that is part of a chain from a parent reference point through multiple bones with a control endpoint, as well as for inverse kinematic chains. Further, a state-space can include both states with motion patterns for each individual control point, motion patterns for kinematic chains, or both in the same state-space for a computer animation model.

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