Ms. Sayli Raut Profile

Sayli Raut

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Proceedings Article | 19 December 2017 Paper

Posture recognition associated with lifting of heavy objects using Kinect and Adaboost

Sayli Raut, Navaneethakrishna M., Ramakrishnan S.

Proceedings Volume 10613, 1061304 (2017) https://doi.org/10.1117/12.2300745

KEYWORDS: Injuries, Feature extraction, Video processing, Safety, Machine learning, Data acquisition, Biomedical engineering, 3D image processing

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Lifting of heavy objects is the common task in the industries. Recent statistics from the Bureau of Labour indicate, back injuries account for one of every five injuries in the workplace. Eighty per cent of these injuries occur to the lower back and are associated with manual materials handling tasks. According to the Industrial ergonomic safety manual, Squatting is the correct posture for lifting a heavy object. In this work, an attempt has been made to monitor posture of the workers during squat and stoop using 3D motion capture and machine learning techniques. For this, Microsoft Kinect V2 is used for capturing the depth data. Further, Dynamic Time Warping and Euclidian distance algorithms are used for extraction of features. Ada-boost algorithm is used for classification of stoop and squat. The results show that the 3D image data is large and complex to analyze. The application of nonlinear and linear metrics captures the variation in the lifting pattern. Additionally, the features extracted from this metric resulted in a classification accuracy of 85% and 81% respectively. This framework may be put-upon to alert the workers in the industrial ergonomic environments.

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