Fall Detection from Depth Map Video Sequences

Abstract

Abstract. Falls are one of the major risks for seniors living alone at home. Computer vision systems, which do not require to wear sensors, offer a new and promising solution for fall detection. In this work, an occlusion robust method is presented based on two features: human centroid height relative to the ground and body velocity. Indeed, the first feature is an efficient solution to detect falls as the vast majority of falls ends on the ground or near the ground. However, this method can fail if the end of the fall is completely occluded behind furniture. Fortunately, these cases can be managed by using the 3D person velocity computed just before the occlusion.

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“…Consequently, topological detection becomes not less, if not more, valuable for theory and practice than energy detection. The theory of topological detection is formulated in [1][2][3][4][5][6][7][8][9][10][11][12][17][18][19][20][21][22][23][24][25][26][27][28]. It is especially necessary for the purpose of reexamining the former theory and in that way producing new results that are not available to traditional concepts of radiolocation.…”

“…Not results, not specific solutions are the most valuable, bur namely the solution method, the approach to it. The created method is presented in [1][2][3][4][5][6][7][8][9][10][11][12][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34].…”

“…2 and 3) the operation of the working model of fractal nonparametric detector of radar signals (FNDRS) was performed in [2003][2004][2005]. [1][2][3][4][5][6][7][8][9][10][11][12][17][18][19][20][21][22][23][24][25][26][27][28]. In 2005 in the US it was exhibited as part of ISTC project with CCB "Almaz" and IRE RAS and earned a very high opinion of experts [1,2].…”

“…Moreover, the texture also determines lacunarity Λ (Fig. 5), which uses second-order statistics for fractal images [1][2][3][4][5][6][7][8][9][10][11][12][17][18][19][20][21][22][23][24][25][26][27][28]. Lacunarity is small for large dense texture and it is great when the texture is coarse-grained.…”

Semantic Reasoning in Context-Aware Assistive Environments to Support Ageing with Dementia

“…The available solutions in this field are numerous and, in most cases, robust. However, their scope of usability, mostly focused on security aspects, is generally very narrow [7,15]. To help the generalization of such systems, it would be useful to integrate them in an interoperable way.…”