Abstract: This paper addresses sharpness of a no-reference image based on Cumulative Probability of Blur Detection (CPBD) metric and also deals with removal of this blur. CPBD considers prediction of human blur at different contrasts. The probabilistic model that calculates probability of blur detection at edges in the image are taken into consideration by CPBD . This data is then spread over the entire image by calculating CPBD. The CPBD is tested by comparing it with different sharpness metrics for LIVE database images. Then the process of blur removal is done by reading the Gaussian blur image from LIVE database. The standard deviation for the test image is calculated while computing CPBD. Adjustment of standard deviation is followed by estimation of point spread function (PSF) and finally deconvlucy function is used to restore the image using Lucy-Richardson algorithm of deblurring.
Keywords: No reference, Image Quality, Gaussian blur, blurred image, deblurring, deconvlucy, Point Spread Function (PSF).
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8. Niranjan D. Narvekar ,” Objective no-reference visual blur assessment,” M.S. thesis Dept. Electrical Eng., Arizona State Univ., Tempe, 2009
9. Z. Wang, G. Wu, H. R. Sheikh, E. P. Simoncelli, E. Yang, and A. C. Bovik, “Quality-aware images,” IEEE Trans. Image Process., vol. 15, no. 6, pp. 1680–1689, Jun. 2006.
10. R. Ferzli and L. J. Karam, “No-reference objective wavelet based noise immune image sharpness metric,” IEEE international Conference on Image Processing,vol. 1, pp. 405-408, Sept. 2005.
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Abstract: An isothermal plug flow reactor for the production of sulphuric acid over a range of degree of conversion ,XA = 0.95 to 0.99 and reactor diameter, Di = 0.05 to 0.1m have been designed. The reactor which operates at atmospheric pressure is capable of producing 10,000 metric tons per annum. This reactor is designed with hastelloy because it possesses an excellent corrosion and sulphuric acid resistance properties. The reactor performance models are simulated with the aid of a Computer using MATLAB (R2007b).The results provided information for the functional parameters for the reactor which include; the reactor volume, space time, space velocity, rate of heat generation per unit volume of reactor, pressure drop, and length of reactor. The relationship between these parameters and the degree of conversion are presented graphically.
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Abstract: Beamforming antennas for fixed and mobile wireless communications have received enormous interest worldwide in recent decades, and a wide variety of approaches for smart antenna design and application. Smart antenna techniques at the base station can dramatically improve the performance of the mobile radio system by employing spatial filtering. The wideband smart antennas are widely used antennas. A wideband beamforming algorithm which is derived from spatial signal processing technique is considered in this technique. We will be using circular array geometry for the wideband smart antenna. A well known LMS algorithm will be applied to the circular array geometry. The DOA/validation component uses a MATLAB script to implement the MUSIC algorithm to estimate the DOA for both incoming sources. In this paper directional beam pattern for the given design parameters will be displayed.
Keywords: Wireless communication, Smart antenna, Circular array goemetry, DOA estimation, MATLAB.
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