Posture Pattern Recognition Analysis in Lectures

  • Weverson da Silva Pereira Centro Universitário FEI
  • Fernando Pujaico Rivera Centro Universitário FEI
  • Leila Cristina C. Bergamasco Centro Universitário FEI
  • Paulo Sergio Silva Rodrigues Centro Universitário FEI


The Study of Posture Analysis and Non-Verbal Communication plays a pivotal role in enhancing communication among individuals in various contexts. The ability to decode and comprehend messages conveyed through gestures, facial expressions, and body movements is crucial for fostering more effective and meaningful interactions. Accordingly, this present work aims to conduct an exploratory analysis of posture patterns among speakers worldwide. To achieve this, the Openpifpaf algorithm was employed in videos of lectures for pose extraction, and the K-means clustering algorithm was utilized to distinguish commonly adopted postures during this lectures. The evaluation regarding the representativeness of keyposes involved an online questionnaire in which participants were asked to classify certain speaker poses into one of the clusters. The results revealed that the K-means algorithm achieved an accuracy rate of 85.71%.

Palavras-chave: Clustering, Openpifpaf, Lectures, Pose


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PEREIRA, Weverson da Silva; RIVERA, Fernando Pujaico; BERGAMASCO, Leila Cristina C.; RODRIGUES, Paulo Sergio Silva. Posture Pattern Recognition Analysis in Lectures. In: WORKSHOP DE VISÃO COMPUTACIONAL (WVC), 18. , 2023, São Bernardo do Campo/SP. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2023 . p. 120-124. DOI: