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     Research Journal of Applied Sciences, Engineering and Technology

    Abstract
2013(Vol.6, Issue:18)
Article Information:

Adaptive Segmentation Method for 2-D Barcode Image Base on Mathematic Morphological

Jianhua Li, Yi-Wen Wang, Yi Chen and Guocheng Wang
Corresponding Author:  Jianhua Li 
Submitted: August 03, 2012
Accepted: September 03, 2012
Published: October 10, 2013
Abstract:
Segmentation is a key process of 2-D barcode identification. In this study we propose a fast adaptive segmentation method that is based on morphological method which is suitable for kinds of 2-D barcode images with different scale, angle and sort. The algorithm is based on mathematical morphology, the basic idea of the algorithm is to use Multi-scale open reconstruction of mathematical morphology to transform the image continuously, then choose whether to terminate by the results of the adjacent image transformation and finally get the final segmentation results by further processing of the images obtain from termination.The proposed approach is applied in experiments on 2-D barcodes with complicated background. The results indicated that the proposed method is very effective in adaptively 2-D barcode image segmentation.

Key words:  2-D barcode, mathematical morphology, morphological segmentation, reconstruction, structure element, ,
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Cite this Reference:
Jianhua Li, Yi-Wen Wang, Yi Chen and Guocheng Wang, . Adaptive Segmentation Method for 2-D Barcode Image Base on Mathematic Morphological. Research Journal of Applied Sciences, Engineering and Technology, (18): 3335-3342.
Article Information:

Simulation of High Performance PID Controller for Induction Motor Speed Control with Mathematical Modeling

S. Senthilkumar and S. Vijayan
Corresponding Author:  S. Senthilkumar 
Submitted: December 12, 2012
Accepted: February 01, 2013
Published: October 10, 2013
Abstract:
This study presents the design of high performance PID controller for three phase induction motor V/f speed control with induction motor mathematical modeling. V/f method is a simple method for speed control of induction motor. The control scheme is based on the popular constant volts per hertz (V/f) method using the high performance PID controller. Design of induction motor mathematical modeling and PID controller for Space Vector Pulse Width Modulation inverter are proposed for induction motor V/f speed control. The simulation is carried out by MATLAB/Simulink.

Key words:  Induction motors, mathematical modeling, PID controller, PWM inverter, V/f control, ,
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Cite this Reference:
S. Senthilkumar and S. Vijayan, . Simulation of High Performance PID Controller for Induction Motor Speed Control with Mathematical Modeling. Research Journal of Applied Sciences, Engineering and Technology, (18): 3343-3348.
ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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