deletions | additions       diff --git a/subsection_Introduction_One_common_problem__.tex b/subsection_Introduction_One_common_problem__.tex  index 3e63c4a..a1b125d 100644  --- a/subsection_Introduction_One_common_problem__.tex  +++ b/subsection_Introduction_One_common_problem__.tex 
...
One common problem of today's generation is pollution. Clean and plentiful water is the cornerstone of prosperous communities, yet as we enter the 21st century, increasing demand and changing climate patterns are draining rivers and aquifers and pollution is threatening the quality of what remains. Polluted water is the world's biggest health risk that continuously threatens both the quality of life and the health of everyone. The lack of proper awareness campaigns and other promotional activities like gaming activities is still a major problem that causes this issue. In spite of the Philippines being a developing country, Filipino children below 11 years of age have shown little awareness of environmental issues. \cite{Zualkernan_2009} Even though there exists games promoting environmental awareness in general, promotional activities are still lacking even with the use of technology. Consequently, water pollution awareness games are still nonexistent in the field. \cite{song2012analysis}  This study aims to address this problem by creating an interactive game developed with Kinect technology that will help promote awareness in water pollution. The rapid human recognition system of Kinect technology as well as its 3D motion sensor have been given a lot of attention nowadays. The low cost, reliability and speed of the system promises to make Kinect the primary 3D measuring device in indoor robotics, 3D scene reconstruction, and object recognition \cite{smisek20133d}. By incorporating new technology, everyone can become more engaged and aware of the problem. Thus, this research intends to use Kinect and incorporate algorithms to improve the overall performance of its features by adding collision and detection with  human activity recognition using of  3D data algorithms.