Publication

A Web Survey for Facial Expressions Evaluation

Michel Bierlaire, Jean-Philippe Thiran, Matteo Sorci
2008
Reports

Abstract

In the recent years, researchers have investigated several methods of facial expression analysis. Their interest has been to apply their algorithms to sets of images labelled by a restrained number of experts. In order to deal with the generalizability of the proposed methods, databases of numerous facial expressions images have been collected. Less attention has been given to the experts. In this paper we present a web-based survey aiming at collecting the judgment on different facial expressions of a heterogeneous number of experts. In order to provide the researchers with a common set of features for a fair comparison of algorithms, the collected data combine the participants choices and a set of measures computed on the images. The resulting database consists, at the moment, of 40704 annotations from 1785 experts.

Official source

https://infoscience.epfl.ch/entities/publication/312619da-ece6-417d-a827-445312788f28

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Michel Bierlaire, Jean-Philippe Thiran, Matteo Sorci
2008
Reports

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/312619da-ece6-417d-a827-445312788f28

About this result

Related concepts (32)

Face perception

Facial perception is an individual's understanding and interpretation of the face. Here, perception implies the presence of consciousness and hence excludes automated facial recognition systems. Although facial recognition is found in other species, this article focuses on facial perception in humans. The perception of facial features is an important part of social cognition. Information gathered from the face helps people understand each other's identity, what they are thinking and feeling, anticipate their actions, recognize their emotions, build connections, and communicate through body language.

Facial recognition system

A facial recognition system is a technology potentially capable of matching a human face from a or a video frame against a database of faces. Such a system is typically employed to authenticate users through ID verification services, and works by pinpointing and measuring facial features from a given image. Development began on similar systems in the 1960s, beginning as a form of computer application. Since their inception, facial recognition systems have seen wider uses in recent times on smartphones and in other forms of technology, such as robotics.

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Set theory is the branch of mathematical logic that studies sets, which can be informally described as collections of objects. Although objects of any kind can be collected into a set, set theory, as a branch of mathematics, is mostly concerned with those that are relevant to mathematics as a whole. The modern study of set theory was initiated by the German mathematicians Richard Dedekind and Georg Cantor in the 1870s. In particular, Georg Cantor is commonly considered the founder of set theory.

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