Image coding based on maximum entropy partitioning for identifying improbable intensities related to facial expressions

In this paper we investigate information-theoretic image coding techniques that assign longer codes to improbable, imprecise and non-distinct intensities in the image. The variable length coding techniques when applied to cropped facial images of subjects with different facial expressions, highlight...

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Published inSadhana (Bangalore) Vol. 41; no. 12; pp. 1393 - 1406
Main Authors Susan, Seba, Aggarwal, Nandini, Chand, Shefali, Gupta, Ayush
Format Journal Article
LanguageEnglish
Published New Delhi Springer India 01.12.2016
Springer Nature B.V
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ISSN0256-2499
0973-7677
DOI10.1007/s12046-016-0559-7

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Abstract In this paper we investigate information-theoretic image coding techniques that assign longer codes to improbable, imprecise and non-distinct intensities in the image. The variable length coding techniques when applied to cropped facial images of subjects with different facial expressions, highlight the set of low probability intensities that characterize the facial expression such as the creases in the forehead, the widening of the eyes and the opening and closing of the mouth. A new coding scheme based on maximum entropy partitioning is proposed in our work, particularly to identify the improbable intensities related to different emotions. The improbable intensities when used as a mask decode the facial expression correctly, providing an effective platform for future emotion categorization experiments.
AbstractList In this paper we investigate information-theoretic image coding techniques that assign longer codes to improbable, imprecise and non-distinct intensities in the image. The variable length coding techniques when applied to cropped facial images of subjects with different facial expressions, highlight the set of low probability intensities that characterize the facial expression such as the creases in the forehead, the widening of the eyes and the opening and closing of the mouth. A new coding scheme based on maximum entropy partitioning is proposed in our work, particularly to identify the improbable intensities related to different emotions. The improbable intensities when used as a mask decode the facial expression correctly, providing an effective platform for future emotion categorization experiments.
Author Susan, Seba
Chand, Shefali
Aggarwal, Nandini
Gupta, Ayush
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CitedBy_id crossref_primary_10_1016_j_patrec_2019_04_023
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Issue 12
Keywords Variable length coding
entropy coding
Shannon–Fano coding
maximum entropy partitioning
Huffman coding
facial expression recognition
non-extensive entropy with Gaussian gain
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– reference: ChandaBhabatoshMajumderDwijesh Dutta Digital image processing and analysis2004LtdPHI Learning Pvt
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– reference: Susan S and Dwivedi M 2014 Dynamic growth of hidden-layer neurons using the non-extensive entropy. In 2014 Fourth international conference on communication systems and network technologies (CSNT), 7 Apr 2014, pp. 491–495. IEEE
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Snippet In this paper we investigate information-theoretic image coding techniques that assign longer codes to improbable, imprecise and non-distinct intensities in...
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SubjectTerms Emotions
Engineering
Entropy
Forehead
Image coding
Information theory
Maximum entropy
Partitioning
Widening
Title Image coding based on maximum entropy partitioning for identifying improbable intensities related to facial expressions
URI https://link.springer.com/article/10.1007/s12046-016-0559-7
https://www.proquest.com/docview/1880815086
Volume 41
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