deletions | additions       diff --git a/subsubsection_Data_Collection_and_Preparation__.tex b/subsubsection_Data_Collection_and_Preparation__.tex  index 8c32c9d..858ac46 100644  --- a/subsubsection_Data_Collection_and_Preparation__.tex  +++ b/subsubsection_Data_Collection_and_Preparation__.tex 
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\subsubsection{Data Collection and Preparation}  One data collection scheme was implemented. The collection involved gathering of data needed to be able to design the model that will be used as basis for improving the overall functionalities of the game in the study. The model can be used to develop a prototype which was expected to have implemented the collision detection, data processing, feature extraction, and skeletal and motion tracking capabilities of the Kinect sensor that derived only the needed information which was the hand gesture and disregard every other joints.  A group of 30 users \citep{parry2014keeping} with paired physical characteristics such as height, size, age and gender will undergo stratified sampling so that each pair will be divided into two clusters with 10-15 users \citep{ren2013robust} \citep{Ren_2013}  who were asked to use the Kinect. With this, the users were asked to perform a hand gesture similar to a specific hand gesture specified by the researchers. The users did the hand gesture for 3 rounds. Every gesture made per round was equivalent to a different record from the data set. Prior to allowing the researchers to post a certain guideline for the hand gestures that the users were expected to perform in front of the Kinect sensor, the respondents made an agreement to the researchers through a consent form. The hand gestures that were performed by the users are seen in the Appendix A.   In this data collection procedure, the speed, motion and stroke of the user's hand were acquired by the Kinect and made part of the data set. The joints except the hands segment that were recognized by the Kinect sensor were active but will be disregarded in the model building stages entirely. These will basically be used for future references should there be observations and clarifications that might arise leading to the discovery of possibly new insights, or computations as part of the projectile model in the study. \\