WASET
	%0 Journal Article
	%A Soon-Hyun Park and  Takami Matsuo
	%D 2008
	%J International Journal of Electrical and Information Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 20, 2008
	%T Time-Derivative Estimation of Noisy Movie Data using Adaptive Control Theory
	%U https://publications.waset.org/pdf/10414
	%V 20
	%X This paper presents an adaptive differentiator
of sequential data based on the adaptive control theory. The
algorithm is applied to detect moving objects by estimating a
temporal gradient of sequential data at a specified pixel. We
adopt two nonlinear intensity functions to reduce the influence
of noises. The derivatives of the nonlinear intensity functions
are estimated by an adaptive observer with σ-modification
update law.
	%P 2818 - 2825