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- W2089703453 abstract "In this paper, we present a method for quantitatively and objectively assessing 180 degree turns using low cost video sensors. A three-dimensional voxel reconstruction, which is built using silhouettes captured from two calibrated web camera views, is used to represent the human body. Experiments were conducted in which participants performed the standard Timed Up and Go tests where 180 degree turns are evaluated. Our two calibrated cameras captured the images during the test. Two key parameters including turn time and turn steps are extracted using the voxel data. Good agreement for the turn time was found for our system compared to the expert rating. The extracted numbers of turn steps are one step less than the expert rating in many test runs. The difference comes mainly from the nature of the pivot turns, and the turn time difference between the expert rating and the algorithm, namely the determination of the time duration from the beginning to the end of the turn. The development of this technology provides potential for assessing 180 degree turns in the home setting as part of a balance, stability and fall risk assessment tool." @default.
- W2089703453 created "2016-06-24" @default.
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- W2089703453 date "2011-08-01" @default.
- W2089703453 modified "2023-09-25" @default.
- W2089703453 title "Quantitative analysis of 180 degree turns for fall risk assessment using video sensors" @default.
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- W2089703453 doi "https://doi.org/10.1109/iembs.2011.6092005" @default.
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