Personalized Automatic Estimation of Self-Reported Pain Intensity from Facial Expressions

© 2017 IEEE. Pain is a personal, subjective experience that is commonly evaluated through visual analog scales (VAS). While this is often convenient and useful, automatic pain detection systems can reduce pain score acquisition efforts in large-scale studies by estimating it directly from the partic...

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Main Authors: Martinez, Daniel Lopez, Rudovic, Ognjen, Picard, Rosalind W.
Other Authors: Harvard University--MIT Division of Health Sciences and Technology
Format: Article
Language:English
Published: Institute of Electrical and Electronics Engineers (IEEE) 2021
Online Access:https://hdl.handle.net/1721.1/135725
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author Martinez, Daniel Lopez
Rudovic, Ognjen
Picard, Rosalind W.
author2 Harvard University--MIT Division of Health Sciences and Technology
author_facet Harvard University--MIT Division of Health Sciences and Technology
Martinez, Daniel Lopez
Rudovic, Ognjen
Picard, Rosalind W.
author_sort Martinez, Daniel Lopez
collection MIT
description © 2017 IEEE. Pain is a personal, subjective experience that is commonly evaluated through visual analog scales (VAS). While this is often convenient and useful, automatic pain detection systems can reduce pain score acquisition efforts in large-scale studies by estimating it directly from the partictipants' facial expressions. In this paper, we propose a novel two-stage learning approach for VAS estimation: first, our algorithm employs Recurrent Neural Networks (RNNs) to automatically estimate Prkachin and Solomon Pain Intensity (PSPI) levels from face images. The estimated scores are then fed into the personalized Hidden Conditional Random Fields (HCRFs), used to estimate the VAS, provided by each person. Personalization of the model is performed using a newly introduced facial expressiveness score, unique for each person. To the best of our knowledge, this is the first approach to automatically estimate VAS from face images. We show the benefits of the proposed personalized over traditional non-personalized approach on a benchmark dataset for pain analysis from face images.
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spelling mit-1721.1/1357252024-08-09T20:29:20Z Personalized Automatic Estimation of Self-Reported Pain Intensity from Facial Expressions Martinez, Daniel Lopez Rudovic, Ognjen Picard, Rosalind W. Harvard University--MIT Division of Health Sciences and Technology Massachusetts Institute of Technology. Media Laboratory © 2017 IEEE. Pain is a personal, subjective experience that is commonly evaluated through visual analog scales (VAS). While this is often convenient and useful, automatic pain detection systems can reduce pain score acquisition efforts in large-scale studies by estimating it directly from the partictipants' facial expressions. In this paper, we propose a novel two-stage learning approach for VAS estimation: first, our algorithm employs Recurrent Neural Networks (RNNs) to automatically estimate Prkachin and Solomon Pain Intensity (PSPI) levels from face images. The estimated scores are then fed into the personalized Hidden Conditional Random Fields (HCRFs), used to estimate the VAS, provided by each person. Personalization of the model is performed using a newly introduced facial expressiveness score, unique for each person. To the best of our knowledge, this is the first approach to automatically estimate VAS from face images. We show the benefits of the proposed personalized over traditional non-personalized approach on a benchmark dataset for pain analysis from face images. 2021-10-27T20:29:00Z 2021-10-27T20:29:00Z 2017 2019-07-31T16:42:50Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/135725 en 10.1109/CVPRW.2017.286 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Institute of Electrical and Electronics Engineers (IEEE) arXiv
spellingShingle Martinez, Daniel Lopez
Rudovic, Ognjen
Picard, Rosalind W.
Personalized Automatic Estimation of Self-Reported Pain Intensity from Facial Expressions
title Personalized Automatic Estimation of Self-Reported Pain Intensity from Facial Expressions
title_full Personalized Automatic Estimation of Self-Reported Pain Intensity from Facial Expressions
title_fullStr Personalized Automatic Estimation of Self-Reported Pain Intensity from Facial Expressions
title_full_unstemmed Personalized Automatic Estimation of Self-Reported Pain Intensity from Facial Expressions
title_short Personalized Automatic Estimation of Self-Reported Pain Intensity from Facial Expressions
title_sort personalized automatic estimation of self reported pain intensity from facial expressions
url https://hdl.handle.net/1721.1/135725
work_keys_str_mv AT martinezdaniellopez personalizedautomaticestimationofselfreportedpainintensityfromfacialexpressions
AT rudovicognjen personalizedautomaticestimationofselfreportedpainintensityfromfacialexpressions
AT picardrosalindw personalizedautomaticestimationofselfreportedpainintensityfromfacialexpressions