The quality of video, such as the Mean Squared Error (MSE), Weighted Mean Squared Error (WMSE) or the Peak Signal-to-Noise Ratio (PSNR), not always correspond with visual observations. Structural Similarity based video quality assessment is proposed under the assumption that the Human Visual System (HVS) is highly adapted for extracting structural information from video. While the demand on high resolution quality increases in the media industry, Color loss will make the visual quality different. In this paper, we propose an improved quality assessment method by adding color comparison into structural similarity measurement system for evaluating video quality. Then we separate the task of similarity measurement into four comparisons: luminance, contrast, structure and color. Experimental results show that the predicted quality scores of the proposed method are more effective and consistent with visual quality than the classical methods using two different distortion types of video sets.
Keywords: - MSE, WMSE, PSNR, HVS, luminance, contrast
[1] A. C Bovik. Introduction to Image and Video Quality Assessment[OL]. [2009-3-17]. http://live.ece. utexas.edu /research/quality/intro.htm.
[2] C J van den Branden Lambrecht, Ed. Special Issue on Image and Video Quality Metrics [J]. Signal Process., 1998, 70(3): 155-294.
[3] VQEG. Final Report from the Video Quality Experts Group on the Validation of Objective Models of Video Quality Assessment [OL]. (2000-3-15) [2009-3-17]. http://www.its.bldrdoc.gov/vqeg/projects/ frtv_phaseI/COM-80E_final_report.pdf.
[4] T N Pappas and R J Safranek. Perceptual Criteria for Image Quality Evaluation. In: A. C Bovik, ed. Handbook of Image &Video Processing [M]. San Diego: Academic Press, 2000: 669-684.
[5] Z Wang and A C Bovik. A Universal Image Quality Index [J]. IEEE Signal Processing Letters, 2002, 9(3): 81-84.
Manual task activities have been found to contribute to a number of musculoskeletal disorders such as sprain and strain of the muscles and low back pain among others. This study examined the impact of manual tasks on workers in an oil and gas company in Nigeria. Twenty six manual task workers participated in the study and their physiological responses during work were evaluated through heart beat rate per minute and volume of oxygen consumption. Relative aerobic strain (RAS) for each of the 26 subjects was calculated through the volume of oxygen consumption as RAS1 and through the heart beat rate per minute as RAS2. The results showed that based on RAS1 and RAS2, 8 or 30.77% and 9 or 34.62% out of the 26 workers have the impact of the job within their capacity respectively while 18 or 69.23% and 17 (65.38%) have the task beyond their capability based on RAS1 and RAS2 respectively. In order to ensure the safety and comfort of the workers, it may be necessary to assess the physical fitness of an intending manual task worker before employment
Keywords: - age correction factor (AG), Heart beat rate, Manual task, Relative aerobic strain (RAS), Volume of Oxygen Consumption (VO2)
We tested how to improve the quality of the reconstructed video, several deblocking algorithms have been used. In this paper, we will introduce these deblocking algorithms and classify them into several categories. On the other hand, the conventional PSNR is widely adopted for estimating the quality of the compressed video. However, PSNR sometimes does not reveal the quality perceived by human visual system (HVS). In this paper, we will introduce one measurement to estimate the blockiness in the compressed video.
Keywords: - reconstructed video, deblocking algorithm, PSNR, HVS
An analysis is carried out to study free convective flow and heat transfer of a viscous incompressible
fluid over a linearly moving vertical porous plate with suction and viscous dissipation. The fluid viscosity is
assumed to vary as a linear function of temperature. The governing boundary layer equations are reduced to
boundary value problem using the concept of similarity transformations. The corresponding coupled ordinary
differential equation is solved numerically using the Runge Kutta fourth order method along with shooting
technique. Graphical results for the dimensionless velocity and temperature distributions are shown for various
values of the thermophysical parameters controlling the flow regime. Numerical values of physical quantities
such as the local Skin-friction coefficient and the Local Nusselt number are presented in tabular form.
Keywords: - Variable fluid viscosity, Porous media, Viscous Dissipation, Non Darcian flow, Radiative Heat flux
Background: Cervical cancer is one of the leading causes of morbidity and mortality amongst the gynecological cancers worldwide, Cervical cancer is potentially preventable, and through effective screening programs can lead to reduction in the morbidity and mortality associated with this cancer. Objective: The study aimed to assess nurses-midwives' knowledge concerning the pap smear and determine the association between nurse-midwives' knowledge and their demographic, reproductive variables in Baghdad city Hospitals. Methodology: A descriptive analytical study was carried out from September/ 1/2013 to December /30/ 2013 through a "non-probability" purposive sample of (170) nurse-midwives which was selected from (9) hospitals in Baghdad city, The data were collected by the investigator who interviewed the nurse – midwives and filled out the constructed a questionnaire formats which designed for the purpose of the study and comprised of two main parts: part one including: demographic, reproductive, nursing, midwifery experience and pap smear training course variables, part two including: knowledge concerning pap smear. The validity of the questionnaire was determined through a panel of experts in the specialist fields while the reliability of the questionnaire was determined by calculating the Reliability coefficient . Thereafter, the data were analyzed through the application of descriptive and inferential statistics approach. Results: The study findings indicated that most of the nurse-midwives' knowledge concerning pap smear test unacceptable, there were low mean of score in all items of nurse- midwives knowledge, there were no statistical significant association between nurses –midwives' knowledge concerning pap smear and their demographic, reproductive variables, their experience, pap smear course and duration of training course. Conclusion: There were unacceptable results of nurse – midwives' knowledge concerning Pap smear and majority of nurse – midwives hadn't adequate knowledge which can affect the type of care concerning Pap smear. Recommendations: The study recommends that need for advanced education and training course for nurses – midwives and other health care providers concerning pap smear to increase knowledge and awareness and reactivate national screening program guidelines at best.
Key words: - Assessment, knowledge, Nurses – Midwives and pap smear.
The overall objective of the paper is to evaluate and compare the performance of IP (IPv4 and IPv6), using OPNET [1] as a simulation tool to compare them in terms of different criteria. In this, we have designed a wide area networks based on IPv4and the IPv6 protocols in OPNET, a network simulator platform. Simulation techniques allow Lena analyze the behavior of each network separately. The network consists of different components such as servers, routers, and adapters. The drive of this paper is to assess the basic productivity, and packet loss, a delay, jitter, and the use of methods based on simulative and analytical network addresses in IPv4 / IPv6. The aim of this paper is to find out what is the best IP under a particular application. Understanding the impact of the delay, and the wrath of use and productivity in the network addresses of IPv4/IPv6.. The simulation has been carried out using Optimized Network Engineering Tool (OPNET).
Keywords: - IPv4, IPv6, OPNET, delay, throughput, jitter.
The enormous boom of the internet services and with the increased number of the devices, and applications that use the Internet, major changes in the overall architecture has required the use of new technologies. In this day became necessary to find a version of IPv6 (Internet Protocol Version 6) in order to reach out to the product meets all of these requirements and enable a global environment where processing rules clasped all applications. This paper discusses ways to migrate from IPv4 to IPv6,It uses GNS3 to simulate three ways used in transition to IP6 and Svolarwinds to analysis three parameters of network performance Latency, Packet loss.We tried to present in this paper a groundwork examination of IPv6 in Network migration and performance analysis, in which determine that network migration process is a very essential footstep in shaping how the communication will occur and will support with or detract from the enforcement of IPv6 policies[1].
Keywords: - IPv4, IPv6, GNS3, Tunneling,Dual Stack, NAT-PT
[1] MD. tarig Aziz, Mohamed Saiful Islam, MD. nazmul Islam khan. Throughput performance evolution of video /voice traffic in IPv4/IPv6 network. International journal of computer applications. December 2, 2011, p, 1.
[2] A.Dutta, J.ALberi, A.Cheng, B.Horgan, T.McAuley, D.Chee, B.Lyles, "IPv6TRANSITIONTECHNIQUSFORLEGACY APPLICATION":582, MILCOM 2006.
[3] Ali, Amer nizar abu. Comparison study between IPv4&IPv6. International journal of computer science issue. May 1, 2013.
[4] Internet Engineering Task Force (IETF) RFC6052, 3513, 4291, 6104, HTTP://tools.ietf. Or/htm/
[5] P. Loshin, IPv6: Theory, Protocol and Practice, Second Edition, 500 Sansome Street, Suite 400, San Francisco, CA 94111: Morgan Kaufmann Publishers, 2004.
This paper is on development of venous thrombosis using Impedance Plethsmography which can be used in institute laboratory, colleges for learning which is efficient to understand the actual working of Impedance Plethsmography. A small 1mA, 50 KHz current is injected into the body through two electrodes and the induced voltage is picked up using another pair of electrodes and placed inside the current electrodes. The amplitude of the signal thus obtained is directly proportional to the electrical impedance (Zo) offered by the body segment between the voltage electrodes. A change in the impedance, which is caused by physiological processes like blood clot, respiration, etc., modulates the amplitude of the carrier. A battery operated low cost and compact Bioelectrical Impedance Meter is developed which can be used for estimation of body impedance, stroke volume, cardiac output, arterial pulse wave velocity and bone mineral density. It is used to measure body impedance from healthy subjects in a lab setup. These parameters may be used for estimation of body impedance.
Keywords: - BIA-Bioelectrical impedance analysis, DVT-Deep Venous Thrombosis, MRI- Magnetic resonance imagine, MVO-Maximum Venous Outflow, OIP -Occlusive Impedance Phlebography , VC-Venous Capacitance
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