Anthony Louis, Stephanie
(2017)
Trajectory Analysis Of Ball Based On Image Processing And Simulation.
Masters thesis, Universiti Sains Malaysia.
Abstract
This dissertation is about trajectory analysis of ball based on image processing and
simulation. Data used in this dissertation are two videos to determine the initial parameters
that can affect the trajectory of the table tennis ball and football. Objective of this dissertation
is to plot and analyse the trajectory of balls. Image processing techniques were used to
capture the projection. The motivation of this research is to determine the existence of spin
in a trajectory where the initial parameters are unknown. The first video was a high speed
video captured at 1000 frame per second. The high speed video captured the initial projection
of a table tennis ball. The spin is unknown; therefore through Matlab simulations the
existence of spin is determined. Initial parameters from the video are computed in order to
replicate the projectile mathematically. The second video is a broadcasting video that
captured at approximately 30 frames per second. This video was analysed in a three
dimensional view to determine the existence of spin. The type of spin whether the football
was experiencing topspin, backspin or sidespin was also analysed. The findings of this
dissertation shows the existence of topspin when the table tennis ball was launched. The
football in the video had a backspin while moving in the y-z direction. The projectile of the
football and table tennis ball is successfully plotted.
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