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Character Recognition (CR) has been an active area of research in the past and due to its diverse applications it continues to be a challenging research topic. In this paper, we focus especially on offline recognition of handwritten English words by first detecting individual characters. The main approaches for offline handwritten word recognition can be(More)
In this paper an integral backstepping sliding mode controller is proposed for controlling underactuated systems. A feedback control law is designed based on backstepping algorithm and a sliding surface is introduced in the final stage of the algorithm. The backstepping algorithm makes the controller immune to matched and mismatched uncertainties and the(More)
Vision based techniques provide a natural way for controlling robots. In this paper, we present a visual gesture recognition system for controlling robots by using fuzzy-C - means clustering algorithm. The proposed method is applied for recognizing both static and dynamic hand gestures. In dynamic hand gesture recognition, instead of processing all video(More)
In this paper, we consider fuzzy identification of uncertain nonlinear systems in Takagi-Sugeno (T-S) form for the purpose of robust fuzzy control design. The uncertain nonlinear system is represented using a fuzzy function having constant matrices and time varying uncertain matrices that describe the nominal model and the uncertainty in the nonlinear(More)
— In this paper we propose a fuzzy PI-PD controller that is tuned by using Genetic Algorithm(GA). The fuzzy PI-PD controller preserves the linear structure of the conventional one, but has self-tuned gains. The proportional, integral and derivative gains are nonlinear functions of their input signals having certain adaptive capability in set-point tracking(More)
of Philosophy, is a record of an original research work carried out by him under my supervision and guidance. The thesis has fulfilled all requirements as per the regulations of the Institute and in my opinion has reached the standard needed for submission. The results embodied in this thesis have not been submitted to any other University or Institute for(More)
This work describes the development of Assamese online handwritten digit recognition system. Assamese numerals are the same as the Bangla numerals. A large database of handwritten numerals is collected and partitioned into two parts of equal size. The first part is used for developing the Hidden Markov Models (HMM) based digit models. The (<i>x</i>,(More)
In this paper we propose a new control algorithm for trajectory tracking of a robotic manipulator. Our controller is designed by combining a fixed controller and an adaptive fuzzy controller for tracking a desired trajectory in the vicinity of uncertain environment and change in manipulator dynamics. The controlled system is characterized by feedforward and(More)