title: A vision based proposal for classification of normal and abnormal gait using RGB camera.
abstract: Human gait is mainly related to the foot and leg movements but, obviously, the entire motor system of the human body is involved. We hypothesise that movement parameters such as dynamic balance, movement harmony of each body element (arms, head, thorax…) could enable us to finely characterise gait singularities to pinpoint potential diseases or abnormalities in advance. Since this paper deals with the preliminary problem pertaining to the classification of normal and abnormal gait, our study will revolve around the lower part of the body. Our proposal presents a functional specification of gait in which only observational kinematic aspects are discussed. The resultant specification will confidently be open enough to be applied to a variety of gait analysis problems encountered in areas connected to rehabilitation, sports, children's motor skills, and so on. To carry out our functional specification, we develop an extraction system through which we analyse image sequences to identify gait features. Our prototype not only readily lets us determine the dynamic parameters (heel strike, toe off, stride length and time) and some skeleton joints but also satisfactorily supplies us with a proper distinction between normal and abnormal gait. We have performed experiments on a dataset of 30 samples.
authors: Department of Computing Technology, University of Alicante, P.O. Box 90, E-03080 Alicante, Spain. Electronic address: mnieto@dtic.ua.es.
authors: Mario
authors: M
authors: Nieto-Hidalgo
authors: Department of Computing Technology, University of Alicante, P.O. Box 90, E-03080 Alicante, Spain. Electronic address: fjferran@dtic.ua.es.
authors: Francisco Javier
authors: FJ
authors: Ferrández-Pastor
authors: Department of Computing Technology, University of Alicante, P.O. Box 90, E-03080 Alicante, Spain. Electronic address: rvaldivieso@dtic.ua.es.
authors: Rafael J
authors: RJ
authors: Valdivieso-Sarabia
authors: Department of Computing Technology, University of Alicante, P.O. Box 90, E-03080 Alicante, Spain. Electronic address: jeronimo@dtic.ua.es.
authors: Jerónimo
authors: J
authors: Mora-Pascual
authors: Department of Computing Technology, University of Alicante, P.O. Box 90, E-03080 Alicante, Spain. Electronic address: juanma@dtic.ua.es.
authors: Juan Manuel
authors: JM
authors: García-Chamizo
mesh_terms: D061725:Accelerometry; D000465:Algorithms; D001696:Biomechanical Phenomena; D005684:Gait; D006801:Humans; D010781:Photography; D012815:Signal Processing, Computer-Assisted
keywords: Computer vision; Frailty; Gait analysis; Heel strike; Pattern recognition; Senility; Toe off