Computer faces: The human Lorenz matrix

Realistic Ekman-type faces were generated by a computer program. Twenty primary parameters (muscle tensions and opening factors), each continuous, were used. Non-linear combination of the primary parameters permits the generation of meaningful faces each governed by a single combined parameter (inte...

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Veröffentlicht in:BioSystems 1986, Vol.19 (1), p.61-80
Hauptverfasser: Musterle, Wilfried, Rossler, Otto E.
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Rossler, Otto E.
description Realistic Ekman-type faces were generated by a computer program. Twenty primary parameters (muscle tensions and opening factors), each continuous, were used. Non-linear combination of the primary parameters permits the generation of meaningful faces each governed by a single combined parameter (intensity-parameter). Five major meaningful faces were distinguished, “friendliness”, “surprise”, “disgust”, “anger” and “grief”. In contrast to the experiments of Ekman, who combined subregions of photographed meaningful faces by hand, mixing can be done in the computer both more easily and, it turns out, more naturally. Mixed facial expressions in an animal were first drawn in matrix form by Lorenz. A consistent interpretation is possible if the linearly superposed displays are assumed to indicate the state of an autonomous optimizer with n linearly independent subfunctionals. An instant display of a vector in n-dimensional space using faces was already proposed by Chernoff. The present faces have the asset that only “natural” parameters are used. This means that no longer only a single point in n-dimensional space can be displayed, but also a meaningful succession of such points — that is, a whole trajectory.
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subjects All-natural multivariate data display
Artificial brains
Biological and medical sciences
Computer processing
Computer simulation
Computers - methods
Emotions
Facial Expression
Facial expressions
Facial Muscles
Fundamental and applied biological sciences. Psychology
Humans
Non-verbal communication
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Psychometrics. Statistics. Methodology
Software - methods
title Computer faces: The human Lorenz matrix
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