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Visual Surveillance for Movement Rehabilitation

100%

Pawlik P. , Bubliński Z.

Image Processing & Communications

2012

tom Vol. 17, no. 4

173--178

The paper presents an attempt to create a system for visual surveillance for movement rehabilitation. The Delaunay triangulation was used as a key method for skeletonization of detected human silhouette. Also, the Hough transform was performed on skeletons of selected body parts in order to obtain slants of those body parts. Analysis of slant changes gives information of movement range, number of exercise repetitions and in general, to assessing correctness of performed exercises. The presented results show that - under some circumstances - it is possible to create visual system for such task.

Adaptive filtration of the colour images with the generalized Distance Directional Filter using the modified HSV colour space

75%

Okarma K.

Poznan University of Technology Academic Journals. Electrical Engineering

2010

tom No. 61

43-52

In the paper some possibilities of using the HSV colour space for the multichannel nage filtering are analysed. The most typical problem with the hue component is its circular character, so for the adaptive filtration the appropriate choice of the "starting" point, known from the conditional ordering, is proposed. Such approach can be useful also or some other colour median filtering methods such as Vector Median Filter, Basic Vector Directional Filter or their combination known as the Distance-Directional Filter. The results of the filtration performed using the most popular methods with the usage of such modified HSV colour space have been compared to the effects of using standard HSV and RGB colour spaces.