1 / 18

Computer Animation Algorithms and Techniques

Computer Animation Algorithms and Techniques. Behavioral Animation: The Individual. Individual Autonomous Behavior. Autonomy: ‘Self-animated’ characters Internal state: psychology & biology & reasoning abilities Perception & reasoning about environment.

astin
Télécharger la présentation

Computer Animation Algorithms and Techniques

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Computer AnimationAlgorithms and Techniques Behavioral Animation: The Individual

  2. Individual Autonomous Behavior Autonomy: ‘Self-animated’ characters Internal state: psychology & biology & reasoning abilities Perception & reasoning about environment Behavior: Manifestations of Individuality Body Expressions and Gestures Facial expressions Speech

  3. Modeling Personality Source: Psychology literature Personality – long term qualities Emotions – short term Mood* – third level Basic emotions*: happy, sad, fear, disgust, surprise, anger

  4. Reasoning Biological urges: hunger, survival, etc. Rational objectives: e.g., grab some ‘fast food’ Preferences: e.g. doesn’t like hamburgers Suggested precedence classes of internal state variables Imperatives Desires Suggestions

  5. Knowledge of world Vision & other sense FoV occlusions Memory permanent v. transient events Background knowledge: e.g., physics AI - e.g., semantic networks

  6. Arbitration among competing intentions Levels of Behavior Hooks for the animator to impose control

  7. 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& personality Psychoanalytic approach psychometrics Freud, Adler, Jung Adaptation Theory: traits: passive, aggressive, withdrawn Need theory: Freud + experiential learning Arousal Theory: absorb & discharge energy

  8. 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

  9. Trait Theory OCEAN: openness, conscientiousness, extroversion, agreeableness, neuroticism PEN: psychoticism, extraversion, neuroticism OCC: how perceptions dictate emotional experience

  10. Laban Movement Analysis (LMA) Tool for human motion description http://en.wikipedia.org/wiki/Laban_Movement_Analysis 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.

  11. Speech Synthesis

  12. Tools for Speech Festival: http://www.cstr.ed.ac.uk/projects/festival/ Speech Synthesis System text to speech MBROLA: http://tcts.fpms.ac.be/synthesis/mbrola.html ToBI: http://www.ling.ohio-state.edu/~tobi/ Tones and Break Indices Praat: http://www.fon.hum.uva.nl/praat/ Speech analysis, synthesis, manipulation

  13. EMOTE Norm Badler at U.Penn Speech driven movement and gestures Torso & arms Laban Movement Analysis Effort Shape

  14. BEAT Justine Cassell at M.I.T. 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/

  15. ruth Doug DeCalro at Rutgers http://www.cs.rutgers.edu/~village/ruth/

  16. Facial Expression http://expression.sourceforge.net/

  17. Facial Expression Ken Perlin: http://mrl.nyu.edu/~perlin/

  18. Dominant personality AlphaWolf: http://alumni.media.mit.edu/~badger/alphaWolf.html

More Related