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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)

For example, if motion patterns 600 are all possible motion patterns for control point 427 with equal probability assigned to each motion pattern, then when an animation is generated, the associated computer model will be used to generate an output video with the boundaries 428 moving in conjunction with control point 427 with the motion from motion patterns 600 assigned to control point 427 at a given time. The motion assigned for a given time can change based on the probability assigned for a given motion state and a motion pattern of a particular motion state. FIG. 6B illustrates this, as over time, the motion states 661, 663, 665, 667, and 669 for a computer animation model 650 change as the computer animation model is used to generate an output video animation synchronized to audio data 670.

As described herein, an animation is assigned a motion state for a given time or time period. The motion state is selected from the state-space of all possible motion states for the computer animation model. Different computer animation models can have different frameworks (e.g. combinations of variables or data structures) for the associated state-space of the model. In one example embodiment, an animation framework associated with a computer animation model comprises A control points (e.g. control point 527 or control points associated with eyebrow areas 450, 451), B motion patterns (e.g. motion patterns 610-620), and C tempo harmonics (e.g. harmonic multiples of tempo 504 determined from beats 502) such that a number of motion states N for the computer animation model within the animation framework is:
N=(B×C)A??(1)

權(quán)利要求

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