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Author David Sanchez-Mendoza; David Masip; Agata Lapedriza edit   file
doi  openurl
  Title Emotion recognition from mid-level features Type Journal Article
  Year 2015 Publication Pattern Recognition Letters Abbreviated Journal PRL  
  Volume 67 Issue Part 1 Pages 66–74  
  Keywords Facial expression; Emotion recognition; Action units; Computer vision  
  Abstract In this paper we present a study on the use of Action Units as mid-level features for automatically recognizing basic and subtle emotions. We propose a representation model based on mid-level facial muscular movement features. We encode these movements dynamically using the Facial Action Coding System, and propose to use these intermediate features based on Action Units (AUs) to classify emotions. AUs activations are detected fusing a set of spatiotemporal geometric and appearance features. The algorithm is validated in two applications: (i) the recognition of 7 basic emotions using the publicly available Cohn-Kanade database, and (ii) the inference of subtle emotional cues in the Newscast database. In this second scenario, we consider emotions that are perceived cumulatively in longer periods of time. In particular, we Automatically classify whether video shoots from public News TV channels refer to Good or Bad news. To deal with the different video lengths we propose a Histogram of Action Units and compute it using a sliding window strategy on the frame sequences. Our approach achieves accuracies close to human perception.  
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  Publisher Elsevier B.V. Place of Publication Editor  
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  Series Volume Series Issue Edition  
  ISSN 0167-8655 ISBN Medium  
  Area Expedition Conference  
  Notes (down) OR;MV Approved no  
  Call Number Admin @ si @ SML2015 Serial 2746  
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Author Petia Radeva; Judit Martinez; A. Tovar; X. Binefa; Jordi Vitria; Juan J. Villanueva edit  openurl
  Title CORKIDENT: an automatic vision system for real-time inspection of natural products. Type Journal Article
  Year 1999 Publication Abbreviated Journal  
  Volume Issue Pages  
  Keywords  
  Abstract  
  Address Wales  
  Corporate Author Thesis  
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  Notes (down) OR;MILAB;MV Approved no  
  Call Number BCNPCL @ bcnpcl @ RMT1999 Serial 23  
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Author Jordi Vitria; Petia Radeva; X. Binefa edit  openurl
  Title EigenHistograms: using low dimensional models of color distribution for real time object recognition Type Journal Article
  Year 1999 Publication Abbreviated Journal  
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  Address Ljubliana, Slovenia, Springer-Verlag  
  Corporate Author Thesis  
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  Notes (down) OR;MILAB;MV Approved no  
  Call Number BCNPCL @ bcnpcl @ VRB1999a Serial 29  
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Author Petia Radeva; Jordi Vitria edit  openurl
  Title Corkinspect: Statistical Learning of Natural Material Type Journal
  Year 2004 Publication Italian Beverage Technology, 13(38):11–18 Abbreviated Journal  
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  Notes (down) OR;MILAB;MV Approved no  
  Call Number BCNPCL @ bcnpcl @ RaV2004b Serial 514  
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Author Jordi Vitria; M. Bressan; Petia Radeva edit  openurl
  Title Bayesian classification of cork stoppers using class-conditional independent component analysis Type Journal
  Year 2006 Publication IEEE Transactions on Systems, Man and Cybernetics (Part C), 36(6) Abbreviated Journal  
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  Notes (down) OR;MILAB;MV Approved no  
  Call Number BCNPCL @ bcnpcl @ VBR2006 Serial 723  
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