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Computer Animation Rick Parent Computer Animation Algorithms and Techniques Behavioral Animation: The Individual
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Computer Animation Rick Parent Individual Autonomous Behavior Behavior: Manifestations of Individuality Body Expressions and Gestures Facial expressions Speech Autonomy: ‘Self-animated’ characters Internal state: psychology & biology & reasoning abilities Perception & reasoning about environment
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Computer Animation Rick Parent Modeling Personality Personality – long term qualities Emotions – short term Mood* – third level Basic emotions*: happy, sad, fear, disgust, surprise, anger Source: Psychology literature
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Computer Animation Rick Parent Reasoning Suggested precedence classes of internal state variables Imperatives Desires Suggestions Preferences: e.g. doesn’t like hamburgers Biological urges: hunger, survival, etc. Rational objectives: e.g., grab some ‘fast food’
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Computer Animation Rick Parent Knowledge of world Background knowledge: e.g., physics AI - e.g., semantic networks Vision & other sense FoV occlusions Memory permanent v. transient events
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Computer Animation Rick Parent Levels of Behavior Hooks for the animator to impose control Arbitration among competing intentions
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Computer Animation Rick Parent Personality Models Biology/evolutionary approaches brain & anatomy biochemistry & personality genetics & personality Psychoanalytic approach psychometrics Freud, Adler, Jung Adaptation Theory: traits: passive, aggressive, withdrawn Need theory: Freud + experiential learning Arousal Theory: absorb & discharge energy
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Computer Animation Rick Parent Type & Trait Theory Type: individuals slotted into a type e.g. introvert v. extrovert, Type A v. Type B Trait: lie on gradation combination defines behavior in situation e.g., aggressive, play, order Internal states: how perceptions dictate emotional experience
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Computer Animation Rick Parent Trait Theory OCEAN: openness, conscientiousness, extroversion, agreeableness, neuroticism PEN: psychoticism, extraversion, neuroticism OCC: how perceptions dictate emotional experience
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Computer Animation Rick Parent Laban Movement Analysis (LMA) Body - describes structural and physical characteristics of the human body while moving. Effort - the way a movement is done with respect to inner intention. Shape - the way the body changes shape during movement. Space - nvolves motion in connection with the environment, and with spatial patterns, pathways, and lines of spatial tension. Tool for human motion description http://en.wikipedia.org/wiki/Laban_Movement_Analysis
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Computer Animation Rick Parent Speech Synthesis
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Computer Animation Rick Parent Tools for Speech ToBI: http://www.ling.ohio-state.edu/~tobi/http://www.ling.ohio-state.edu/~tobi/ Tones and Break Indices Festival: http://www.cstr.ed.ac.uk/projects/festival/http://www.cstr.ed.ac.uk/projects/festival/ Speech Synthesis System text to speech Praat: http://www.fon.hum.uva.nl/praat/http://www.fon.hum.uva.nl/praat/ Speech analysis, synthesis, manipulation MBROLA: http://tcts.fpms.ac.be/synthesis/mbrola.htmlhttp://tcts.fpms.ac.be/synthesis/mbrola.html
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Computer Animation Rick Parent EMOTE Speech driven movement and gestures Torso & arms Laban Movement Analysis Effort Shape Norm Badler at U.Penn
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Computer Animation Rick Parent BEAT Input text – marked up Generate non-verbal behavior in sync with speech Facial expressions, head & body motions gestures http://www.cs.rutgers.edu/~village/ruth/ Justine Cassell at M.I.T.
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Computer Animation Rick Parent ruth http://www.cs.rutgers.edu/~village/ruth/ Doug DeCalro at Rutgers
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Computer Animation Rick Parent Facial Expression http://expression.sourceforge.net/
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Computer Animation Rick Parent Facial Expression Ken Perlin: http://mrl.nyu.edu/~perlin/http://mrl.nyu.edu/~perlin/
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Computer Animation Rick Parent Dominant personality AlphaWolf: http://alumni.media.mit.edu/~badger/alphaWolf.htmlhttp://alumni.media.mit.edu/~badger/alphaWolf.html
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