muddassar sharif - Academia.edu (original) (raw)

Papers by muddassar sharif

The professional medical journal, Sep 1, 2015

…Background:Despite efforts to promote widespread vaccination,measles still remains an important ... more …Background:Despite efforts to promote widespread vaccination,measles still remains an important cause of morbidity and mortality in children especially in developing countries. The aim of this study was to review the pattern and outcome of measles patients admitted at Benazir Bhutto Hospital (BBH) Rawalpindi during measles epidemic 2013.Study Design: Cross sectional descriptive study. Period:Three months during measles epidemic 2013 (March-May). Setting:Pediatric department BBH Rawalpindi. Materials and Methods:Data regarding demographic profile, clinical presentation, complications and outcome of measles patients was collected and analyzed using SPSS 15.Results:A total of 192 patients of both sexes were included with mean age of 35.48+32.71 months. Majority of patients(71.4%) were unvaccinated and 88% had history of contact with measles patients. The common complications observed were pneumonia and pneumonia with gastroenteritis and both were found statistically significant in patients with malnutrition and low socioeconomic status.Conclusion:The current study concluded that improving measles immunization and nutritional status in children is essential for reducing morbidity and mortality of measles.

Journal of Rawalpindi Medical College

Introduction: Coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), was init... more Introduction: Coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), was initially identified in Wuhan, China, in December 2019. The virus affects almost all countries of the world. It has infected humans in all age groups, of all ethnicities, both males and females. It is considered that COVID-19, in those with underlying health conditions or co-morbidities, has an increasingly rapid and severe progression, often leading to death. This study is designed to evaluate the impact of co-morbidities on the severity and outcome of COVID-19 infection in children. Methods: This retrospective observational study was conducted at the pediatric department, Benazir Bhutto Hospital Rawalpindi from March 2020 to September 2021. Every confirmed COVID-19 admitted case according to inclusion criteria was enrolled for the study. Data were retrieved from hospital records; data was recorded on a predesigned study questionnaire, entered and analyzed in SPSS version 24 for descriptive...

Journal of Rawalpindi Medical College

Objective: To determine the frequency of common complications of measles in malnourished children... more Objective: To determine the frequency of common complications of measles in malnourished children. Materials and Methods: This study was conducted in the Department of Pediatrics Benazir Bhutto Hospital, Rawalpindi from January 2018 to December 2018. Through a Descriptive Cross-Sectional Study Design, a total of 110 cases of measles with malnutrition presenting to the Paediatrics Department were selected and observations were recorded on follow up. Results: The mean age was 2.7 years (SD±1.2) of which 61% (n=67) were male and 39% (n =43) were female patients. 35.5% (n=39) presented with grade I, 24.5% (n=27) in grade II and 40% (n= 44) in grade III malnutrition. On follow up, pneumonia was observed in 39.1%, diarrhea in 36.4%, otitis media in 10% and encephalitis in 8.1% of children. The most frequent complications were observed in grade II and grade III malnourished children and children of younger age groups. Conclusion: Measles and malnutrition are still calamity in our populatio...

Background: To determine the etiological spectrum of pancytopenia / bicytopenia in children aged ... more Background: To determine the etiological spectrum of pancytopenia / bicytopenia in children aged 2 months to 12 years. Methods: In this cross sectional descriptive study patients from 2 months to 12 years of age presenting with different cytopenias were included. Demographic profile and clinical findings were noted. Degree of malnutrition was assessed according to Gomez classification. Blood complete picture and peripheral smear were carried out for every patient having pancytopenia(leucopenia, anaemia and thrombocytopenia) or bicytopenia (if only two parameters from the full blood count are low) were further subjected to bone marrow aspiration and trephine biopsy Results: A total of 105 patients were included in the study..More than half of the patients (61%) were 2 60 months of age . Out of these 64 patients, 71% were malnourished (second and third degree malnutrition according to Gomez classification) and it was statistically found to be significant (p value.004) . Fever (82.9%) ...

Background: To compare the changes in serum electrolytes in asphyxiated newborns of different sev... more Background: To compare the changes in serum electrolytes in asphyxiated newborns of different severity with control group. Methods: In this case control study 150 cases were enrolled and divided into three groups of 50 cases each. Group one included asphyxiated patients with Sarnat stage II, group two included asphyxiated patients with Sarnat stage III and group three included control group with no birth asphyxia. Cases and controls were full term babies weighing 2.5kg or more. Cases included newborns with APGAR score less than 7 at 5 min of birth. Controls included newborns with APGAR score 7 or more at 5 min after the birth. Neonates with congenital anomalies, serum creatinine >1.5mg/dl, suspected metabolic diseases or infants of mothers with hypertension, diabetes mellitus, toxemia of pregnancy, mothers who received general anesthesia or drugs that cause CNS depression in newborn, mothers with history of febrile illness upto two weeks before delivery and mothers with abnormal ...

Journal of Rawalpindi Medical College, 2021

Objective: To observe the reliability of lung ultrasound in diagnosing pneumonia as compared to c... more Objective: To observe the reliability of lung ultrasound in diagnosing pneumonia as compared to chest X-ray.Materials and Methods: This Prospective cohort study was carried out over a period of three months in the Paediatric Department of Benazir Bhutto Hospital Rawalpindi. One hundred patients, 2 months to 12 years of age were enrolled in the study. All the patients were subjected to chest X-ray and lung ultrasound within 12 hours of admission. Data was recorded on predesigned Performa and processed on SPSS version 25. Sensitivity, specificity, positive and negative predictive values were calculated for chest X-ray and lung ultrasound.Results: LUS was found to be more efficient in detecting consolidations (64 out of 100) as compared to CXR (50 out of 100). In 14 patients CXR was not able to detect consolidations but LUS detected the same. Fourteen patients in whom lung ultrasound was positive for consolidations but CXR was negative were subjected to CT chest. Out of these 14 CT sca...

Journal of Rawalpindi Medical College

Introduction: Mortality of children is the prime indicator of a country’s health status and its d... more Introduction: Mortality of children is the prime indicator of a country’s health status and its development. Understanding child mortality among different age groups is one of the valuable public health insights. Therefore, studies regarding child mortality patterns are essential for re-evaluating existing health services. Objective: The objective of this study is to describe the pattern of paediatric mortality in our hospital. Materials and Methods: A retrospective analysis was done with the medical records of Pediatric patients (up to 12 years)who died in the Pediatrics department of Benazir Bhutto Hospital, Rawalpindi from 1stJan2018 to 31stDec 2018. Results: A total of 15,500 children were admitted to the Paediatric department from 1st January 2018 to 31st December 2018. A total of 1738 deaths were recorded. The overall mortality of 11.3% was noted in the cases admitted to the Paediatric Department. Conclusion: Septicemia, Acute respiratory infection(ARI)/Pneumonia, Birth asphyx...

The Professional Medical Journal

Background:Despite efforts to promote widespread vaccination,measles stillremains an important ca... more Background:Despite efforts to promote widespread vaccination,measles stillremains an important cause of morbidity and mortality in children especially in developingcountries. The aim of this study was to review the pattern and outcome of measles patientsadmitted at Benazir Bhutto Hospital (BBH) Rawalpindi during measles epidemic 2013.StudyDesign: Cross sectional descriptive study. Period:Three months during measles epidemic 2013(March - May). Setting:Pediatric department BBH Rawalpindi. Materials and Methods:Dataregarding demographic profile, clinical presentation, complications and outcome of measlespatients was collected and analyzed using SPSS 15.Results:A total of 192 patients of bothsexes were included with mean age of 35.48+32.71 months. Majority of patients(71.4%) wereunvaccinated and 88% had history of contact with measles patients. The common complicationsobserved were pneumonia and pneumonia with gastroenteritis and both were found statisticallysignificant in patients with...

Systems that rely on face recognition biometric have gained great importance ever since terrorist... more Systems that rely on face recognition biometric have gained great importance ever since terrorist threats imposed weakness among the implemented security systems. Other biometrics i.e., fingerprints or iris recognition is not trustworthy in such situations whereas face recognition is considered as a fine compromise. This survey illustrates different face recognition practices that laid foundations on the issue of partial occlusion dilemma where faces are disguised to cheat the security system. Occlusion refers to facade of the face image which can be due to sunglasses, hair or wrapping of facial image by scarf or other accessories. Efforts on face recognition in controlled settings have been in the picture for past several years; however identification under uncontrolled conditions like illumination, expression and partial occlusion is quite a matter of concern. Based on literature a classification is made in this paper to solve the recognition of face in the presence of partial occlusion.

Automatic Face Recognition is one of the most emphasizing dilemmas in diverse of potential releva... more Automatic Face Recognition is one of the most emphasizing dilemmas in diverse of potential relevance like in different surveillance systems, security systems, authentication or verification of individual like criminals etc. Adjoining of dynamic expression in face causes a broad range of discrepancies in recognition systems. Facial Expression not only exposes the sensation or passion of any person but can also be used to judge his/her mental views and psychosomatic aspects. This paper is based on a complete survey of face recognition conducted under varying facial expressions. In order to analyze different techniques, motion-based, model-based and muscles-based approaches have been used in order to handle the facial expression and recognition catastrophe. The analysis has been completed by evaluating various existing algorithms while comparing their results in general. It also expands the scope for other researchers for answering the question of effectively dealing with such problems.

Research Journal of …

NGN core flexibility, its subject to adoption and the rapid growth in the personal mobile devices... more NGN core flexibility, its subject to adoption and the rapid growth in the personal mobile devices led to rapid growth in mobile based services as mobile E-Learning. The personalized E-Learning service is proposed based on J2ME , it is integrated with open source IMS control frame work for user management, session establishment using SIP protocol and Multimedia learning content delivery like voice, video, whiteboard sharing using RTP and RTSP. The proposed E-Learning platform comprises on four layers user agent layer (3G mobile phone, J2ME based SIP learning and teaching agent application software), access layer (3G UMTS, Wi-Fi, GPRS), Data communication layer (SIP signaling, XML data exchange between mobile client and Application server) and E-Control and Management layer (IMS control functions, HSS, Learning content application servers ). This personalized E-Learning provides opportunity for learners and teachers to learn, teach and control management everywhere.

online.journals.tubitak.gov.tr

Mostly face recognition methods are based on linear and non-linear subspace features extraction a... more Mostly face recognition methods are based on linear and non-linear subspace features extraction and classification tasks. These classification methods are used for global and local facial features for person identification. Both local and global features play different roles for recognition and classification. There is a number of face recognition methods that have been proposed up till now and produce good results. But when small sample size and pose variation problems are taken into consideration, face recognition becomes more complex and does not produce good results. In this paper, 3S and pose variation problems are dealt with. Firstly, Linear Discriminate Analysis is considered to minimize the singularity problem that arises when small samples of individuals are available. In the next step, the proposed framework utilizes global and local facial features and constructs a combined subspace using enhanced LDA method that is discussed later in the sections.

cibernetica.ccadet.unam.mx

International Journal of …, 2012

Edge enhancement is derived from lack of accurate result from edge detection techniques. The imag... more Edge enhancement is derived from lack of accurate result from edge detection techniques. The image which is captured from long distances carries a lot of noise and blur which causes edge discontinuity. Although some novel algorithms which are based on cellular neural network, fuzzy enhancement and binary morphology have shown accuracy in order to obtain refined edge but still the problem of edge discontinuity arises. Eliminating discontinuity of edge a hybrid technique is proposed based on pixel neighbors pattern analysis PNPA. In the technique Canny operator for initial edge detection, PNPA operation for edge enhancement are performed for remote sensing satellite image successively. The visual and subjective evaluation shows that the proposed PNPA operation can effectively eliminate the influence of edge discontinuity which occurred due to noise and blurr in original captured image, as comparing to existing edge segmenting processes.

Lecture Notes in Engineering and …

This paper presents a unified way to unite major computer threat researchers, students, volunteer... more This paper presents a unified way to unite major computer threat researchers, students, volunteers and amigos in antivirus industry under the umbrella of a Unified Model for Computer Threat Protection. The suggested model slices protection mechanism into two compatible parts to promote indigenous custom antivirus development. First part, rather static in nature, is unique custom antivirus software developed by individual organizations (users) that meets their specific needs. The other one, dynamic in nature, is the threat definition and research part contributed by global researchers' community in a standardized way to form a global public virus definition library. At the end a tentative sketch of such custom software for a strategic organization is also presented to model basic construct and essentials of an effective antivirus.

Control Theory and Informatics, 2012

Distributed Virtual Disk Storage System (DVDSS) is a reliable and fully decentralized storage sys... more Distributed Virtual Disk Storage System (DVDSS) is a reliable and fully decentralized storage system which is based on the concept of Distributed Storage and Virtual Disk. It is Client / Server architecture and utilizes all free space of desktop machines of a LAN for storage purposes. DVDSS converts all storage of computers on the LAN into a large disk, create a virtual disk and provide this disk to all users of the system. Users can store their data files and folders on this disk and they can retrieve their data whenever they need. DVDSS provides a transparent and reliable access to data. It also provides data consistency and data security. The recovery of data when a node fails is also provided by DVDSS. The objective of system is to combine the all storage space of a LAN and utilize it for storage of user's data in transparent and reliable manner.

World Applied Sciences Journal, 2012

Passwords play an important role in daily life in various computing applications like ATM machine... more Passwords play an important role in daily life in various computing applications like ATM machines, internet services, windows login, authentication in mobiles etc. The major aim for using passwords is to restrict unauthorized users to access the system. Passwords are necessary but, still they are not considered much safe to provide the security to the users because of many flaws in the conventional password systems. A large number of attacks on many systems are related to the passwords. This paper describes password attacks and comparative analysis of different authentication methods for awareness of attacks and selection of authentication method in a particular scenario.

… Conference, 2009. INMIC …, 2009

In this paper, a new algorithm to find convex hull is presented which keeps the points into a for... more In this paper, a new algorithm to find convex hull is presented which keeps the points into a form of nested binary tree. There are number of methods available for finding the convex hull but all of them are time consuming because they are based on comparing distances between the points and rotation of angles, whereas the proposed technique is based on binary tree which is efficient and more accurate than the existing algorithms as it decreases the computational cost and finds precise boundary of the object. Another main advantage of the proposed technique is the efficient memory usage because of binary tree structure.

The professional medical journal, Sep 1, 2015

…Background:Despite efforts to promote widespread vaccination,measles still remains an important ... more …Background:Despite efforts to promote widespread vaccination,measles still remains an important cause of morbidity and mortality in children especially in developing countries. The aim of this study was to review the pattern and outcome of measles patients admitted at Benazir Bhutto Hospital (BBH) Rawalpindi during measles epidemic 2013.Study Design: Cross sectional descriptive study. Period:Three months during measles epidemic 2013 (March-May). Setting:Pediatric department BBH Rawalpindi. Materials and Methods:Data regarding demographic profile, clinical presentation, complications and outcome of measles patients was collected and analyzed using SPSS 15.Results:A total of 192 patients of both sexes were included with mean age of 35.48+32.71 months. Majority of patients(71.4%) were unvaccinated and 88% had history of contact with measles patients. The common complications observed were pneumonia and pneumonia with gastroenteritis and both were found statistically significant in patients with malnutrition and low socioeconomic status.Conclusion:The current study concluded that improving measles immunization and nutritional status in children is essential for reducing morbidity and mortality of measles.

Journal of Rawalpindi Medical College

Introduction: Coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), was init... more Introduction: Coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), was initially identified in Wuhan, China, in December 2019. The virus affects almost all countries of the world. It has infected humans in all age groups, of all ethnicities, both males and females. It is considered that COVID-19, in those with underlying health conditions or co-morbidities, has an increasingly rapid and severe progression, often leading to death. This study is designed to evaluate the impact of co-morbidities on the severity and outcome of COVID-19 infection in children. Methods: This retrospective observational study was conducted at the pediatric department, Benazir Bhutto Hospital Rawalpindi from March 2020 to September 2021. Every confirmed COVID-19 admitted case according to inclusion criteria was enrolled for the study. Data were retrieved from hospital records; data was recorded on a predesigned study questionnaire, entered and analyzed in SPSS version 24 for descriptive...

Journal of Rawalpindi Medical College

Objective: To determine the frequency of common complications of measles in malnourished children... more Objective: To determine the frequency of common complications of measles in malnourished children. Materials and Methods: This study was conducted in the Department of Pediatrics Benazir Bhutto Hospital, Rawalpindi from January 2018 to December 2018. Through a Descriptive Cross-Sectional Study Design, a total of 110 cases of measles with malnutrition presenting to the Paediatrics Department were selected and observations were recorded on follow up. Results: The mean age was 2.7 years (SD±1.2) of which 61% (n=67) were male and 39% (n =43) were female patients. 35.5% (n=39) presented with grade I, 24.5% (n=27) in grade II and 40% (n= 44) in grade III malnutrition. On follow up, pneumonia was observed in 39.1%, diarrhea in 36.4%, otitis media in 10% and encephalitis in 8.1% of children. The most frequent complications were observed in grade II and grade III malnourished children and children of younger age groups. Conclusion: Measles and malnutrition are still calamity in our populatio...

Background: To determine the etiological spectrum of pancytopenia / bicytopenia in children aged ... more Background: To determine the etiological spectrum of pancytopenia / bicytopenia in children aged 2 months to 12 years. Methods: In this cross sectional descriptive study patients from 2 months to 12 years of age presenting with different cytopenias were included. Demographic profile and clinical findings were noted. Degree of malnutrition was assessed according to Gomez classification. Blood complete picture and peripheral smear were carried out for every patient having pancytopenia(leucopenia, anaemia and thrombocytopenia) or bicytopenia (if only two parameters from the full blood count are low) were further subjected to bone marrow aspiration and trephine biopsy Results: A total of 105 patients were included in the study..More than half of the patients (61%) were 2 60 months of age . Out of these 64 patients, 71% were malnourished (second and third degree malnutrition according to Gomez classification) and it was statistically found to be significant (p value.004) . Fever (82.9%) ...

Background: To compare the changes in serum electrolytes in asphyxiated newborns of different sev... more Background: To compare the changes in serum electrolytes in asphyxiated newborns of different severity with control group. Methods: In this case control study 150 cases were enrolled and divided into three groups of 50 cases each. Group one included asphyxiated patients with Sarnat stage II, group two included asphyxiated patients with Sarnat stage III and group three included control group with no birth asphyxia. Cases and controls were full term babies weighing 2.5kg or more. Cases included newborns with APGAR score less than 7 at 5 min of birth. Controls included newborns with APGAR score 7 or more at 5 min after the birth. Neonates with congenital anomalies, serum creatinine >1.5mg/dl, suspected metabolic diseases or infants of mothers with hypertension, diabetes mellitus, toxemia of pregnancy, mothers who received general anesthesia or drugs that cause CNS depression in newborn, mothers with history of febrile illness upto two weeks before delivery and mothers with abnormal ...

Journal of Rawalpindi Medical College, 2021

Objective: To observe the reliability of lung ultrasound in diagnosing pneumonia as compared to c... more Objective: To observe the reliability of lung ultrasound in diagnosing pneumonia as compared to chest X-ray.Materials and Methods: This Prospective cohort study was carried out over a period of three months in the Paediatric Department of Benazir Bhutto Hospital Rawalpindi. One hundred patients, 2 months to 12 years of age were enrolled in the study. All the patients were subjected to chest X-ray and lung ultrasound within 12 hours of admission. Data was recorded on predesigned Performa and processed on SPSS version 25. Sensitivity, specificity, positive and negative predictive values were calculated for chest X-ray and lung ultrasound.Results: LUS was found to be more efficient in detecting consolidations (64 out of 100) as compared to CXR (50 out of 100). In 14 patients CXR was not able to detect consolidations but LUS detected the same. Fourteen patients in whom lung ultrasound was positive for consolidations but CXR was negative were subjected to CT chest. Out of these 14 CT sca...

Journal of Rawalpindi Medical College

Introduction: Mortality of children is the prime indicator of a country’s health status and its d... more Introduction: Mortality of children is the prime indicator of a country’s health status and its development. Understanding child mortality among different age groups is one of the valuable public health insights. Therefore, studies regarding child mortality patterns are essential for re-evaluating existing health services. Objective: The objective of this study is to describe the pattern of paediatric mortality in our hospital. Materials and Methods: A retrospective analysis was done with the medical records of Pediatric patients (up to 12 years)who died in the Pediatrics department of Benazir Bhutto Hospital, Rawalpindi from 1stJan2018 to 31stDec 2018. Results: A total of 15,500 children were admitted to the Paediatric department from 1st January 2018 to 31st December 2018. A total of 1738 deaths were recorded. The overall mortality of 11.3% was noted in the cases admitted to the Paediatric Department. Conclusion: Septicemia, Acute respiratory infection(ARI)/Pneumonia, Birth asphyx...

The Professional Medical Journal

Background:Despite efforts to promote widespread vaccination,measles stillremains an important ca... more Background:Despite efforts to promote widespread vaccination,measles stillremains an important cause of morbidity and mortality in children especially in developingcountries. The aim of this study was to review the pattern and outcome of measles patientsadmitted at Benazir Bhutto Hospital (BBH) Rawalpindi during measles epidemic 2013.StudyDesign: Cross sectional descriptive study. Period:Three months during measles epidemic 2013(March - May). Setting:Pediatric department BBH Rawalpindi. Materials and Methods:Dataregarding demographic profile, clinical presentation, complications and outcome of measlespatients was collected and analyzed using SPSS 15.Results:A total of 192 patients of bothsexes were included with mean age of 35.48+32.71 months. Majority of patients(71.4%) wereunvaccinated and 88% had history of contact with measles patients. The common complicationsobserved were pneumonia and pneumonia with gastroenteritis and both were found statisticallysignificant in patients with...

Systems that rely on face recognition biometric have gained great importance ever since terrorist... more Systems that rely on face recognition biometric have gained great importance ever since terrorist threats imposed weakness among the implemented security systems. Other biometrics i.e., fingerprints or iris recognition is not trustworthy in such situations whereas face recognition is considered as a fine compromise. This survey illustrates different face recognition practices that laid foundations on the issue of partial occlusion dilemma where faces are disguised to cheat the security system. Occlusion refers to facade of the face image which can be due to sunglasses, hair or wrapping of facial image by scarf or other accessories. Efforts on face recognition in controlled settings have been in the picture for past several years; however identification under uncontrolled conditions like illumination, expression and partial occlusion is quite a matter of concern. Based on literature a classification is made in this paper to solve the recognition of face in the presence of partial occlusion.

Automatic Face Recognition is one of the most emphasizing dilemmas in diverse of potential releva... more Automatic Face Recognition is one of the most emphasizing dilemmas in diverse of potential relevance like in different surveillance systems, security systems, authentication or verification of individual like criminals etc. Adjoining of dynamic expression in face causes a broad range of discrepancies in recognition systems. Facial Expression not only exposes the sensation or passion of any person but can also be used to judge his/her mental views and psychosomatic aspects. This paper is based on a complete survey of face recognition conducted under varying facial expressions. In order to analyze different techniques, motion-based, model-based and muscles-based approaches have been used in order to handle the facial expression and recognition catastrophe. The analysis has been completed by evaluating various existing algorithms while comparing their results in general. It also expands the scope for other researchers for answering the question of effectively dealing with such problems.

Research Journal of …

NGN core flexibility, its subject to adoption and the rapid growth in the personal mobile devices... more NGN core flexibility, its subject to adoption and the rapid growth in the personal mobile devices led to rapid growth in mobile based services as mobile E-Learning. The personalized E-Learning service is proposed based on J2ME , it is integrated with open source IMS control frame work for user management, session establishment using SIP protocol and Multimedia learning content delivery like voice, video, whiteboard sharing using RTP and RTSP. The proposed E-Learning platform comprises on four layers user agent layer (3G mobile phone, J2ME based SIP learning and teaching agent application software), access layer (3G UMTS, Wi-Fi, GPRS), Data communication layer (SIP signaling, XML data exchange between mobile client and Application server) and E-Control and Management layer (IMS control functions, HSS, Learning content application servers ). This personalized E-Learning provides opportunity for learners and teachers to learn, teach and control management everywhere.

online.journals.tubitak.gov.tr

Mostly face recognition methods are based on linear and non-linear subspace features extraction a... more Mostly face recognition methods are based on linear and non-linear subspace features extraction and classification tasks. These classification methods are used for global and local facial features for person identification. Both local and global features play different roles for recognition and classification. There is a number of face recognition methods that have been proposed up till now and produce good results. But when small sample size and pose variation problems are taken into consideration, face recognition becomes more complex and does not produce good results. In this paper, 3S and pose variation problems are dealt with. Firstly, Linear Discriminate Analysis is considered to minimize the singularity problem that arises when small samples of individuals are available. In the next step, the proposed framework utilizes global and local facial features and constructs a combined subspace using enhanced LDA method that is discussed later in the sections.

cibernetica.ccadet.unam.mx

International Journal of …, 2012

Edge enhancement is derived from lack of accurate result from edge detection techniques. The imag... more Edge enhancement is derived from lack of accurate result from edge detection techniques. The image which is captured from long distances carries a lot of noise and blur which causes edge discontinuity. Although some novel algorithms which are based on cellular neural network, fuzzy enhancement and binary morphology have shown accuracy in order to obtain refined edge but still the problem of edge discontinuity arises. Eliminating discontinuity of edge a hybrid technique is proposed based on pixel neighbors pattern analysis PNPA. In the technique Canny operator for initial edge detection, PNPA operation for edge enhancement are performed for remote sensing satellite image successively. The visual and subjective evaluation shows that the proposed PNPA operation can effectively eliminate the influence of edge discontinuity which occurred due to noise and blurr in original captured image, as comparing to existing edge segmenting processes.

Lecture Notes in Engineering and …

This paper presents a unified way to unite major computer threat researchers, students, volunteer... more This paper presents a unified way to unite major computer threat researchers, students, volunteers and amigos in antivirus industry under the umbrella of a Unified Model for Computer Threat Protection. The suggested model slices protection mechanism into two compatible parts to promote indigenous custom antivirus development. First part, rather static in nature, is unique custom antivirus software developed by individual organizations (users) that meets their specific needs. The other one, dynamic in nature, is the threat definition and research part contributed by global researchers' community in a standardized way to form a global public virus definition library. At the end a tentative sketch of such custom software for a strategic organization is also presented to model basic construct and essentials of an effective antivirus.

Control Theory and Informatics, 2012

Distributed Virtual Disk Storage System (DVDSS) is a reliable and fully decentralized storage sys... more Distributed Virtual Disk Storage System (DVDSS) is a reliable and fully decentralized storage system which is based on the concept of Distributed Storage and Virtual Disk. It is Client / Server architecture and utilizes all free space of desktop machines of a LAN for storage purposes. DVDSS converts all storage of computers on the LAN into a large disk, create a virtual disk and provide this disk to all users of the system. Users can store their data files and folders on this disk and they can retrieve their data whenever they need. DVDSS provides a transparent and reliable access to data. It also provides data consistency and data security. The recovery of data when a node fails is also provided by DVDSS. The objective of system is to combine the all storage space of a LAN and utilize it for storage of user's data in transparent and reliable manner.

World Applied Sciences Journal, 2012

Passwords play an important role in daily life in various computing applications like ATM machine... more Passwords play an important role in daily life in various computing applications like ATM machines, internet services, windows login, authentication in mobiles etc. The major aim for using passwords is to restrict unauthorized users to access the system. Passwords are necessary but, still they are not considered much safe to provide the security to the users because of many flaws in the conventional password systems. A large number of attacks on many systems are related to the passwords. This paper describes password attacks and comparative analysis of different authentication methods for awareness of attacks and selection of authentication method in a particular scenario.

… Conference, 2009. INMIC …, 2009

In this paper, a new algorithm to find convex hull is presented which keeps the points into a for... more In this paper, a new algorithm to find convex hull is presented which keeps the points into a form of nested binary tree. There are number of methods available for finding the convex hull but all of them are time consuming because they are based on comparing distances between the points and rotation of angles, whereas the proposed technique is based on binary tree which is efficient and more accurate than the existing algorithms as it decreases the computational cost and finds precise boundary of the object. Another main advantage of the proposed technique is the efficient memory usage because of binary tree structure.