Scholarlink

In recent years, markerless optical systems have emerged as a cost-effective and non-invasive alternative to conventional marker-based systems for biomechanical analysis in sports, gait, and balance assessments. This study evaluates the performance of the Zed 2i stereoscopic camera, which uses neural networks for pose estimation. This study originated as part of a collaborative project with a medical team to objectively assess balance function in post-stroke patients using a mobile dynamometric platform. To simulate balance impairment conditions, two standing conditions were analysed: sway movements in anteroposterior and mediolateral directions. The total body centre of mass was estimated using anthropometric tables, and the centre of mass displacement and velocity were calculated in the x and y directions. Results indicate that the Zed 2i camera show promise as a tool for COM tracking during dynamic posturography.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Centre of Mass Kinematic Analysis for Balance Assessment Using a Markerless Pose Estimation Device

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Ruben Valenzuela,
  • Javier Corral,
  • Mikel Diez,
  • Thomas Provot,
  • Francisco J. Campa,
  • Saioa Herrero,
  • Erik Macho,
  • Charles Pinto

摘要

In recent years, markerless optical systems have emerged as a cost-effective and non-invasive alternative to conventional marker-based systems for biomechanical analysis in sports, gait, and balance assessments. This study evaluates the performance of the Zed 2i stereoscopic camera, which uses neural networks for pose estimation. This study originated as part of a collaborative project with a medical team to objectively assess balance function in post-stroke patients using a mobile dynamometric platform. To simulate balance impairment conditions, two standing conditions were analysed: sway movements in anteroposterior and mediolateral directions. The total body centre of mass was estimated using anthropometric tables, and the centre of mass displacement and velocity were calculated in the x and y directions. Results indicate that the Zed 2i camera show promise as a tool for COM tracking during dynamic posturography.