deletions | additions       diff --git a/In_recent_years_Research_and__.tex b/In_recent_years_Research_and__.tex  index 5d4824f..2b1abfa 100644  --- a/In_recent_years_Research_and__.tex  +++ b/In_recent_years_Research_and__.tex 
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In the  recent years, Research research  and development in technology  has made involvement of helped involve many  individuals witha  physical or cognitive disability into to fit in  the society much easier, serving for making  them to be more  aware of their daily activities, and  thus expanding their autonomy and self-confidence \cite{domingo2012overview}. Human It has been said again and again that human  body part detection and tracking has a an  extensive range of applications. Camera-based motion capture system that required require  cumbersome markers or suits were used in the past. With this, Nowadays,  multi-camera systems \cite{plagemann2010real} or binocular cameras \cite{hrabar2009high} can be used. are being used specifically for motion capture technology since they provide a more robust representation of 3d data.  As said in the previous articles, the Kinect device interprets the 3D data of the scene gotten through infrared structured light that is read by a standard CMOS sensor. It was outlined to allow users to cooperate with the gaming system without the need for a classical hand held controller. Instead, the sensor distinguishes the user’s gestures.There are two stages that are included in the system as indicated in Fig. 9: skeleton identification phase and exercises monitoring stage \cite{gonzalez2014kinect}.