Powered by OpenAIRE graph
Found an issue? Give us feedback
addClaim

This Research product is the result of merged Research products in OpenAIRE.

You have already added 0 works in your ORCID record related to the merged Research product.

Facial expression recognition

Authors: P.K. Manglik; U. Misra; null Prashant; H.B. Maringanti;

Facial expression recognition

Abstract

The paper aims at recognizing the various human facial expressions. Every countenance is marked by changes in the feature points of the face. These feature points are located in various regions of the face. There are two phases in the facial expression recognition technique described here. The first phase is image processing and the second phase is setting up and training of the neural network. The image processing phase or the pre-processing phase involves a number of steps. In the first step the image of the human face is normalized. The normalized image is subjected to a grayscale transformation in the second step. The third step is marked by partitioning of the transformed image in two portions: the upper half and the lower half. A frequency analysis of the normalized image is performed in the upper half partition as the fourth step. This tracks the position of the eyes and the eyebrows. Contouring is performed to trace out the shape of the eyes and the eyebrows. A further frequency analysis in the lower half reveals information about the nose, the mouth and the cheeks as the fifth step of the first phase. The contours are vectored to obtain a feature vector. In the next phase this feature vector is used for training the Hopfield neural network.

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    9
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Top 10%
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
9
Average
Top 10%
Average
Upload OA version
Are you the author of this publication? Upload your Open Access version to Zenodo!
It’s fast and easy, just two clicks!