Analyzing group-level emotion with global alignment kernel based approach

Xiaohua Huang, Abhinav Dhall, Roland Goecke, Matti K. Pietikainen, Guoying Zhao

Research output: Contribution to journalArticleResearchpeer-review

Abstract

From the perspective of social science, understanding group emotion has become increasingly important for teams to considerably accomplish organizational work. Currently, automatically analyzing the perceived affect of a group of people has been received increasingly interest in affective computing community. The variability in group size makes difficulty for group-level emotion recognition to straightforwardly measure the feature distance of two group-level images. To alleviate this problem, this paper aims to design a new method to effectively analyze the group behavior from a group-level image. Motivated by time-series kernel approaches explored in dynamic facial expression classification, this paper mainly concentrates on global alignment kernel and design support vector machine with the combined global alignment kernels (SVM-CGAK) to better recognize group-level emotion. Intensive experiments are conducted on three challenging group-level emotion databases. The experimental results demonstrate that the proposed approach achieves promising performance for group-level emotion recognition compared with the recent state-of-the-art methods.

Original languageEnglish
Number of pages16
JournalIEEE Transactions on Affective Computing
DOIs
Publication statusAccepted/In press - 14 Nov 2019

Keywords

  • Convolution neural network
  • Facial expression analysis
  • Global alignment kernels
  • Group-level emotion recognition
  • Multiple kernel learning

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