Computer Vision Development for Estimating Trunk Angles

  Work-related musculoskeletal disorders have been linked to many physical job risk factors, such as forceful movement, repetitive exertions, awkward posture and vibration. These job risk factors are typically evaluated using ergonomic risk assessment methods or tools. These methods are predominantly self-reporting and observational. Self-reporting methods can be questionnaires, checklists or interviews. Observational methods entail observing pre-defined risk factors using ergonomics checklists during a site visit or on a video recording of the job. The observational methods are widely used by professional ergonomists and safety professionals in the field. The accuracy of the methods, however, is affected by the subjective