Posture Evaluation Device, Posture Evaluation System, Posture Evaluation Method, And Non Transitory Computer Readable Medium

Abstract: Provided are: a posture evaluation device; a posture evaluation system; and a posture evaluation method that are capable of evaluating a posture with high accuracy at a relatively low cost; and a non-transitory computer-readable medium. A posture evaluation device (100) comprises: a spine extraction means (103) for extracting, on the basis of an image obtained by imaging a side of a subject's body and position information on at least a cervical spine, a hip joint, and a knee joint of the body on the image, a spine edge point group consisting of a predetermined number of points indicating a spine shape on the image; a feature amount calculation means (105) for calculating a feature amount related to at least a spine on the basis of the position information and the spine edge point group; and a state estimation means (106) for estimating a state of at least the spine on the basis of the feature amount.

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