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A facial expression database is a collection of images or video clips with facial expressions of a range of emotions. Well-annotated ( emotion -tagged) media content of facial behavior is essential for training, testing, and validation of algorithms for the development of expression recognition systems .
However, an equals sign, a number 8, a capital letter B or a capital letter X are also used to indicate normal eyes, widened eyes, those with glasses or those with crinkled eyes, respectively. Symbols for the mouth vary, e.g. ")" for a smiley face or "(" for a sad face. One can also add a "}" after the mouth character to indicate a beard.
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This is an accepted version of this page This is the latest accepted revision, reviewed on 6 February 2025. Pictorial representation of a facial expression using punctuation marks, numbers and letters Not to be confused with Emoji, Sticker (messaging), or Enotikon. "O.O" redirects here. For other uses, see O.O (song) and OO (disambiguation). This article contains Unicode emoticons or emojis ...
Facial expression is the motion and positioning of the muscles beneath the skin of the face. These movements convey the emotional state of an individual to observers and are a form of nonverbal communication.
Dogs may be able to differentiate between happy and angry expressions in people. They may also be able tell that these expressions correlate with positive and negative meanings, respectively--a ...
In a scientific study participants who held their faces in a frown ranked images as more unpleasant than participants who viewed the images with a neutral facial expression. [8] In a similar test, participants reported increased anger with the manipulated expression of a frown and they also ranked cartoons they saw as less funny than ...
Facial expressions can range from inward angling of the eyebrows to a full frown. [6] While most of those who experience anger explain its arousal as a result of "what has happened to them", psychologists point out that an angry person can very well be mistaken because anger causes a loss in self-monitoring capacity and objective observability. [7]