Lecture 11 - Social Cues Gestures Flashcards
Humans use multiple visual cues for distance in depth:
retinal image size height in visual field occlusion vergence accommodation and focal distance
Robots can do person and object detection by using: (4)
- colour
- motion energy
- shape information
- texture information
Media equation hypothesis
people automatically interact with artificial agents in a social way
Classification of gestures according to their semantic meaning (6):
- idle movements
- pointing
- co-speech gestures
- facial expressions
- pantomime
- sign language
Explain pointing further
People point with limbs in many ways
Directs attention of observer toward a spatial location
Its meaning is to establish joint attention
What is gesticulation?
Co-speech gesture
Spontaneous
Complementary
Simultaneous to speech
What are emblem gestures?
highly conventional and lexicalized such as the thumbs up gesture
What is sign language?
A predetermined set of movement with fixedd meanings
Complete language without any links to hearing languagesW
What are deictic (co-speech) gestures?
Pointing gesture to disambiguate deictic expressions: this, that, there, here
Establish joint attention
Name all co-speech gestures
Deictic gestures
Iconic gestures
Metaphoric gestures
Beat gestures
What are iconic gestures?
And what are the two functions?
Imitating
Depicting objects, or activities (washing the windows)
Elaborate on the manner an action is performed
Clarify the viewpoint from which the action is described
What is a metaphoric co-speech gesture?
Depicts a concept without physical form. Grades are going up ..
Beat gestures
Support technical aspects of speech, but not the content
Rhythmic finger and arm movement to display emphasis
What is pantomime
Moving as if interacting with an object
It is used to depict something
