The accuracy of a 2D video-based lifting monitor
Practitioner's summary: An algorithm for automatically calculating the revised NIOSH lifting equation using a single video camera was evaluated in comparison to laboratory 3D motion capture. The results indicate that this method has suitable accuracy for practical use and may be, particularly, useful when multiple lifts are evaluated.
Abbreviations: 2D: Two-dimensional; 3D: Three-dimensional; ACGIH: American Conference of Governmental Industrial Hygienists; AM: asymmetric multiplier; BOL: beginning of lift; CM: coupling multiplier; DM: distance multiplier; EOL: end of lift; FIRWL: frequency independent recommended weight limit; FM: frequency multiplier; H: horizontal distance; HM: horizontal multiplier; IMU: inertial measurement unit; ISO: International Organization for Standardization; LC: load constant; NIOSH: National Institute for Occupational Safety and Health; RGB: red, green, blue; RGB-D: red, green, blue – depth; RNLE: revised NIOSH lifting equation; RWL: recommended weight limit; SD: standard deviation; TLV: threshold limit value; VM: vertical multiplier; V: vertical distance
Document Type: Research Article
Affiliations: 1: Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI, USA; 2: National Institute for Occupational Safety and Health, Taft Laboratories, Cincinnati, OH, USA; 3: Department of Industrial and Systems Engineering, University of Wisconsin-Madison, Madison, WI, USA
Publication date: August 3, 2019