Pub Date : 2012-10-25DOI: 10.1109/ICSENGT.2012.6339340
N. Mešanović, S. Mujagić, H. Huseinagić, S. Kamenjaković
Lung segmentation is a powerful tool in medical imaging. It can be used in quantification of the lung disease progression, regression or stagnation, and change in the visual extent of disease over time is an important marker of response to therapy and a predictor of mortality. In this work we present a lung disease quantification method that we applied on the baseline and follow-up lung CT images. We proposed a new method for disease progression based on standard segmentation and registration techniques. The main scope of the work is to allow the radiologists to measure volumetric changes of the lungs and to calculate the proportion of the functional reduction of the healthy parenchyma area of the patients with the pleural disease, mesothelioma, and other lung diseases. The proposed method compares the segmented area that is not affected by the disease inside the parenchyma of the original and the registered follow-up exam of the same patient. By calculating the area of the healthy tissue in parenchyma, we can conclude that: if the area of healthy tissue is larger than on the follow-up scan, that the disease progressed, otherwise, the disease regressed. Preprocessing of the images was done by registration and transformation of the images by affine and non-rigid B-spline method. Region growing algorithm is used for segmentation and by comparison of segmented structures from those images resulted in determining the percentage of disease progression, which we compared to visual observers. Total number of 15 patients was taken for testing; total of 1584 CT slices. For the verification of the results, Dice similarity coefficient is used for segmentation accuracy, and in order to compare the results of quantification of the disease with the manual findings, 3D volume of the lungs is measured for each patient and compared with the clinical findings. Pearson correlation coefficient shows significant correlation of our method with visual observers and that our method has high diagnostic accuracy.
{"title":"Application of lung segmentation algorithm to disease quantification from CT images","authors":"N. Mešanović, S. Mujagić, H. Huseinagić, S. Kamenjaković","doi":"10.1109/ICSENGT.2012.6339340","DOIUrl":"https://doi.org/10.1109/ICSENGT.2012.6339340","url":null,"abstract":"Lung segmentation is a powerful tool in medical imaging. It can be used in quantification of the lung disease progression, regression or stagnation, and change in the visual extent of disease over time is an important marker of response to therapy and a predictor of mortality. In this work we present a lung disease quantification method that we applied on the baseline and follow-up lung CT images. We proposed a new method for disease progression based on standard segmentation and registration techniques. The main scope of the work is to allow the radiologists to measure volumetric changes of the lungs and to calculate the proportion of the functional reduction of the healthy parenchyma area of the patients with the pleural disease, mesothelioma, and other lung diseases. The proposed method compares the segmented area that is not affected by the disease inside the parenchyma of the original and the registered follow-up exam of the same patient. By calculating the area of the healthy tissue in parenchyma, we can conclude that: if the area of healthy tissue is larger than on the follow-up scan, that the disease progressed, otherwise, the disease regressed. Preprocessing of the images was done by registration and transformation of the images by affine and non-rigid B-spline method. Region growing algorithm is used for segmentation and by comparison of segmented structures from those images resulted in determining the percentage of disease progression, which we compared to visual observers. Total number of 15 patients was taken for testing; total of 1584 CT slices. For the verification of the results, Dice similarity coefficient is used for segmentation accuracy, and in order to compare the results of quantification of the disease with the manual findings, 3D volume of the lungs is measured for each patient and compared with the clinical findings. Pearson correlation coefficient shows significant correlation of our method with visual observers and that our method has high diagnostic accuracy.","PeriodicalId":325365,"journal":{"name":"2012 International Conference on System Engineering and Technology (ICSET)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115774320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-10-25DOI: 10.1109/ICSENGT.2012.6339303
M. Hakim Adiprasetya, A. Prihatmanto
The usefulness of a simulation is determined by the validity and results of the simulation that can be used by a user to experiment with the system being simulated. In order to to develop a flexible simulator system with a long useful life, an abstraction needs to be introduced in the modeling and validation proses to separate it from the simulation engine itself. The aim is to develop an architecture that can separate the modeling proses of a simulation from the simulation engine that is being used. The language used to model the simulation is Modelica. The Modelica file is converted into the C programming language using tools provided from OpenModelica that is then integrated to the real-time simulator runtime developed in this thesis. This paper discusses the design and implementation of two different simulator architectures. These two architectures are the multi-threaded and non-threaded real-time simulator runtime. The conclusion of the testing and analysis done towards the two architectures is that the non-threaded architecture results in the most valid simulation producing simulation values closest to the real value and is able to fulfill the hard-real time requirements of the simulation.
{"title":"Design and implementation of real time simulator with Modelica","authors":"M. Hakim Adiprasetya, A. Prihatmanto","doi":"10.1109/ICSENGT.2012.6339303","DOIUrl":"https://doi.org/10.1109/ICSENGT.2012.6339303","url":null,"abstract":"The usefulness of a simulation is determined by the validity and results of the simulation that can be used by a user to experiment with the system being simulated. In order to to develop a flexible simulator system with a long useful life, an abstraction needs to be introduced in the modeling and validation proses to separate it from the simulation engine itself. The aim is to develop an architecture that can separate the modeling proses of a simulation from the simulation engine that is being used. The language used to model the simulation is Modelica. The Modelica file is converted into the C programming language using tools provided from OpenModelica that is then integrated to the real-time simulator runtime developed in this thesis. This paper discusses the design and implementation of two different simulator architectures. These two architectures are the multi-threaded and non-threaded real-time simulator runtime. The conclusion of the testing and analysis done towards the two architectures is that the non-threaded architecture results in the most valid simulation producing simulation values closest to the real value and is able to fulfill the hard-real time requirements of the simulation.","PeriodicalId":325365,"journal":{"name":"2012 International Conference on System Engineering and Technology (ICSET)","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125325832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-10-25DOI: 10.1109/ICSENGT.2012.6339287
F. Yunus, J. Jaafar, Z. Mahmud, A. Shafie, R. Idris
Air temperature element variation is affected by environmental factors. Factors that influence air temperature element variation are called air temperature control. There are numbers environmental factors of air temperature element control and this study was investigated environmental factors of elevation, station's location, coastline and land use types. In this study multiple regression method was applied to explicate the contribution of environmental factors on air temperature element variation. Since air temperature data is in discrete points, therefore spatial interpolation analysis was used in producing continuous of this discrete data. In implementing spatial interpolation analysis, estimation error of T - T' data was used, where T is mean monthly air temperature and T' was estimated mean monthly mean air temperature from the developed multiple regression model. Analysis of cross validation was carried out to determine five measured of errors. Spatial interpolation analysis using main data of estimation error of T - T' produced reliable errors and consistent map for mean monthly mean air temperature element in Peninsular Malaysia.
{"title":"Role of environmental factors in modeling of air temperature element in peninsular Malaysia","authors":"F. Yunus, J. Jaafar, Z. Mahmud, A. Shafie, R. Idris","doi":"10.1109/ICSENGT.2012.6339287","DOIUrl":"https://doi.org/10.1109/ICSENGT.2012.6339287","url":null,"abstract":"Air temperature element variation is affected by environmental factors. Factors that influence air temperature element variation are called air temperature control. There are numbers environmental factors of air temperature element control and this study was investigated environmental factors of elevation, station's location, coastline and land use types. In this study multiple regression method was applied to explicate the contribution of environmental factors on air temperature element variation. Since air temperature data is in discrete points, therefore spatial interpolation analysis was used in producing continuous of this discrete data. In implementing spatial interpolation analysis, estimation error of T - T' data was used, where T is mean monthly air temperature and T' was estimated mean monthly mean air temperature from the developed multiple regression model. Analysis of cross validation was carried out to determine five measured of errors. Spatial interpolation analysis using main data of estimation error of T - T' produced reliable errors and consistent map for mean monthly mean air temperature element in Peninsular Malaysia.","PeriodicalId":325365,"journal":{"name":"2012 International Conference on System Engineering and Technology (ICSET)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130466071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-10-25DOI: 10.1109/ICSENGT.2012.6339359
E. Kuantama, L. Setyawan, J. Darma
Early flood alerts system is use to create a tool to measure water level, which powered by solar cell panel. The system is supported by microcontroller and GSM modem to send the measured data via SMS (Short Message Service) into two specific clients' phone numbers that have previously been inputted into the system. Besides the capability to predict the remaining time before the flood, this system can also detect three types of water level: early flood level, flood level and low tide level after the flood with a maximum water level detection of four meters. This system focused on an accurate measurement of the height of the water level and sending a warning message of the threshold height set before to the clients. For each of water level, the system will send three messages for each client number. The setting for client phone numbers and the water level can be programmed by sending the SMS that has been formatted in the system. The early flood alerts system is based on ATMEL AT89S51 microcontroller and the measurement of the water level is processed by ultrasonic HC-SR04.
{"title":"Early flood alerts using Short Message Service (SMS)","authors":"E. Kuantama, L. Setyawan, J. Darma","doi":"10.1109/ICSENGT.2012.6339359","DOIUrl":"https://doi.org/10.1109/ICSENGT.2012.6339359","url":null,"abstract":"Early flood alerts system is use to create a tool to measure water level, which powered by solar cell panel. The system is supported by microcontroller and GSM modem to send the measured data via SMS (Short Message Service) into two specific clients' phone numbers that have previously been inputted into the system. Besides the capability to predict the remaining time before the flood, this system can also detect three types of water level: early flood level, flood level and low tide level after the flood with a maximum water level detection of four meters. This system focused on an accurate measurement of the height of the water level and sending a warning message of the threshold height set before to the clients. For each of water level, the system will send three messages for each client number. The setting for client phone numbers and the water level can be programmed by sending the SMS that has been formatted in the system. The early flood alerts system is based on ATMEL AT89S51 microcontroller and the measurement of the water level is processed by ultrasonic HC-SR04.","PeriodicalId":325365,"journal":{"name":"2012 International Conference on System Engineering and Technology (ICSET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130988701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-10-25DOI: 10.1109/ICSENGT.2012.6339295
S. Pramono, Sugihartono
Increasing a number of receive antennas in STBC-MIMO system yielded increasely spatial diversity gaining. Furthermore, increasing a number of transmit antennas created better spatially multiplexing gaining. However, coding rate created decreasing system performance, higher coding rate yielded worse performance than lower code rate. Using monte-carlo method, this paper simulated the system performance that enclosed many variations these are a number of transmit antennas (3, 4 antennas), a number of receive antennas (2,3,4 antennas) and coding rate (½, ¾).
{"title":"Three, four transmit antennas space time block coded MIMO in Rayleigh fading channel : Performance results","authors":"S. Pramono, Sugihartono","doi":"10.1109/ICSENGT.2012.6339295","DOIUrl":"https://doi.org/10.1109/ICSENGT.2012.6339295","url":null,"abstract":"Increasing a number of receive antennas in STBC-MIMO system yielded increasely spatial diversity gaining. Furthermore, increasing a number of transmit antennas created better spatially multiplexing gaining. However, coding rate created decreasing system performance, higher coding rate yielded worse performance than lower code rate. Using monte-carlo method, this paper simulated the system performance that enclosed many variations these are a number of transmit antennas (3, 4 antennas), a number of receive antennas (2,3,4 antennas) and coding rate (½, ¾).","PeriodicalId":325365,"journal":{"name":"2012 International Conference on System Engineering and Technology (ICSET)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133870646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-10-25DOI: 10.1109/ICSENGT.2012.6339285
E. Husni, A. Wibowo
DTN protocol can overcome network problems such as intermittent connectivity, long or variable delay, asymmetric data rates, and high error rates. TCP/IP protocol, a common network protocol currently used for the internet, cannot handle these problems. By using postfix and DTN2, we can build a DTN-based e-mail server that is capable of sending and receiving e-mails even the server is not continuously connected to a network. This also requires a new method to send and receive e-mails. Postfix is used for managing and processing e-mail users. DTN2 is used for processing e-mails into bundles and bundles into e-mails based on DTN protocol. This requires programs that integrate the postfix e-mail system with DTN2, implemented using bash shell and awk, for sending and receiving e-mail. The email system has been tested in the real condition using trains. The results show that the DTN based email system is working properly.
{"title":"E-mail system for Delay Tolerant Network","authors":"E. Husni, A. Wibowo","doi":"10.1109/ICSENGT.2012.6339285","DOIUrl":"https://doi.org/10.1109/ICSENGT.2012.6339285","url":null,"abstract":"DTN protocol can overcome network problems such as intermittent connectivity, long or variable delay, asymmetric data rates, and high error rates. TCP/IP protocol, a common network protocol currently used for the internet, cannot handle these problems. By using postfix and DTN2, we can build a DTN-based e-mail server that is capable of sending and receiving e-mails even the server is not continuously connected to a network. This also requires a new method to send and receive e-mails. Postfix is used for managing and processing e-mail users. DTN2 is used for processing e-mails into bundles and bundles into e-mails based on DTN protocol. This requires programs that integrate the postfix e-mail system with DTN2, implemented using bash shell and awk, for sending and receiving e-mail. The email system has been tested in the real condition using trains. The results show that the DTN based email system is working properly.","PeriodicalId":325365,"journal":{"name":"2012 International Conference on System Engineering and Technology (ICSET)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123925613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-10-25DOI: 10.1109/ICSENGT.2012.6339292
F. Husain, N. A. Sulaiman, K. A. Hashim, A. Samad
Tenaga Nasional Berhad (TNB) to provide electricity supply in Peninsular Malaysia and was established in 1990. It involved in the generation, transmission, distribution and electricity in Peninsular Malaysia. This study is aimed at studying and determining the optimum route of transmission line using AHP and GIS. Kajang District in Selangor was selected as a study site. Transmission line routing involves a variety of criteria for determine of the suitable route. Alternative routes that balance community input with the most convincing environmental impact, build ability, the use of current and future land, project costs and the needs of a particular electrical system. Four phases of route selection for a transmission line such as Macro Corridor study area, Alternative corridors, Alternative Route, and Preferred Route.
Tenaga national Berhad (TNB)成立于1990年，为马来西亚半岛提供电力供应。它涉及马来西亚半岛的发电、输电、配电和电力。本研究旨在运用层次分析法和地理信息系统的方法研究和确定输电线路的最优路线。雪兰莪州的加让区被选为研究地点。传输线的路由涉及到各种确定合适路由的标准。可选路线平衡社区投入与最具说服力的环境影响、建筑能力、当前和未来土地的使用、项目成本和特定电力系统的需求。传输线路线选择的四个阶段，如宏观走廊研究区、备选走廊、备选路线和优选路线。
{"title":"Multi-criteria selection for TNB transmission line route using AHP and GIS","authors":"F. Husain, N. A. Sulaiman, K. A. Hashim, A. Samad","doi":"10.1109/ICSENGT.2012.6339292","DOIUrl":"https://doi.org/10.1109/ICSENGT.2012.6339292","url":null,"abstract":"Tenaga Nasional Berhad (TNB) to provide electricity supply in Peninsular Malaysia and was established in 1990. It involved in the generation, transmission, distribution and electricity in Peninsular Malaysia. This study is aimed at studying and determining the optimum route of transmission line using AHP and GIS. Kajang District in Selangor was selected as a study site. Transmission line routing involves a variety of criteria for determine of the suitable route. Alternative routes that balance community input with the most convincing environmental impact, build ability, the use of current and future land, project costs and the needs of a particular electrical system. Four phases of route selection for a transmission line such as Macro Corridor study area, Alternative corridors, Alternative Route, and Preferred Route.","PeriodicalId":325365,"journal":{"name":"2012 International Conference on System Engineering and Technology (ICSET)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114861827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-10-25DOI: 10.1109/ICSENGT.2012.6339290
A. Priyanto, A. Maimun, Rahimuddin, A. Y. Sian
This paper examines manoeuvring track-keeping autopilot of a Liquefied Natural Gas (LNG) tanker hull form, which was fitted by fins while taking into account the ship bank interaction effects. A time domain simulation program including ship steering autopilot has been developed to study the manoeuvring track for full loading condition. The results of simulations show that the ship-bank interaction effects, fitting fins and enlarging rudder size have significant influence on the manoeuvring capability of the LNG ship in canal water.
{"title":"Simulation of a LNG tanker track-keeping autopilot in canal water","authors":"A. Priyanto, A. Maimun, Rahimuddin, A. Y. Sian","doi":"10.1109/ICSENGT.2012.6339290","DOIUrl":"https://doi.org/10.1109/ICSENGT.2012.6339290","url":null,"abstract":"This paper examines manoeuvring track-keeping autopilot of a Liquefied Natural Gas (LNG) tanker hull form, which was fitted by fins while taking into account the ship bank interaction effects. A time domain simulation program including ship steering autopilot has been developed to study the manoeuvring track for full loading condition. The results of simulations show that the ship-bank interaction effects, fitting fins and enlarging rudder size have significant influence on the manoeuvring capability of the LNG ship in canal water.","PeriodicalId":325365,"journal":{"name":"2012 International Conference on System Engineering and Technology (ICSET)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127446600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-10-25DOI: 10.1109/ICSENGT.2012.6339298
S. C. Sari, Kuspriyanto, A. Prihatmanto
In order to fulfill some tasks to reach a certain common goal, agents need to make sequence of decisions they have to perform as agroup. The decision is taken based on a selection mechanism of available actions. Choosing arbitrary action will lead to time and energy waste, since not all actions are even optimum. Agents need to decide not only which individual action that will lead to optimum performance, but also their joint actions. Applying reinforcement learning in the multiagent's learning process gives a sequence of optimum joint actions, which collaboration of agents based on this optimum joint actions guarantees the fastest time to reach their goal.
{"title":"Joint action optimation for robotic soccer multiagent using reinforcement learning method","authors":"S. C. Sari, Kuspriyanto, A. Prihatmanto","doi":"10.1109/ICSENGT.2012.6339298","DOIUrl":"https://doi.org/10.1109/ICSENGT.2012.6339298","url":null,"abstract":"In order to fulfill some tasks to reach a certain common goal, agents need to make sequence of decisions they have to perform as agroup. The decision is taken based on a selection mechanism of available actions. Choosing arbitrary action will lead to time and energy waste, since not all actions are even optimum. Agents need to decide not only which individual action that will lead to optimum performance, but also their joint actions. Applying reinforcement learning in the multiagent's learning process gives a sequence of optimum joint actions, which collaboration of agents based on this optimum joint actions guarantees the fastest time to reach their goal.","PeriodicalId":325365,"journal":{"name":"2012 International Conference on System Engineering and Technology (ICSET)","volume":"175 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123839846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-10-25DOI: 10.1109/ICSENGT.2012.6339321
Suprijanto, Gianto, E. Juliastuti, Azhari, L. Epsilawati
The dental panoramic radiography is one of dental imaging that used to visualize the entirety of the maxilla and mandible jaws on the one image planes. Although the direct digital panoramic radiography has been available, however film-based panoramic radiography is still used on the mostly dental clinic and laboratory in Indonesia. The quality of film-based image has significant limitation due to chemical processing and image enhancement cannot be done if required. Therefore, digitized film-based image to digital image was required to allow image enhancements in order to improve the interpretability quality of information in the image. Digitized film-based image is performed using a flatbed scanner on transmission and reflection mode. In this paper, the contrast quality of digital image that scanned using both mode is evaluated based on statistic image characteristic. The results showed that the quality of digitized image using transmission mode is better than using reflection mode. However, if direct digital imaging is used as a gold standard, image enhancement on digitized image is still required. Four methods, i.e. contrast stretching, HE, AHE, and CLAHE are used to attempt improve the quality digitized image. Evaluation of the preference image quality is performed based on objective criterion. The preference image quality for digitized panoramic image can be obtained by using image enhancement based on CLAHE-Rayleigh method, that indicated by the lowest value of mean, standard deviation, RMSE, and average difference and the higher value of NAE and SAE.
{"title":"Image contrast enhancement for film-based dental panoramic radiography","authors":"Suprijanto, Gianto, E. Juliastuti, Azhari, L. Epsilawati","doi":"10.1109/ICSENGT.2012.6339321","DOIUrl":"https://doi.org/10.1109/ICSENGT.2012.6339321","url":null,"abstract":"The dental panoramic radiography is one of dental imaging that used to visualize the entirety of the maxilla and mandible jaws on the one image planes. Although the direct digital panoramic radiography has been available, however film-based panoramic radiography is still used on the mostly dental clinic and laboratory in Indonesia. The quality of film-based image has significant limitation due to chemical processing and image enhancement cannot be done if required. Therefore, digitized film-based image to digital image was required to allow image enhancements in order to improve the interpretability quality of information in the image. Digitized film-based image is performed using a flatbed scanner on transmission and reflection mode. In this paper, the contrast quality of digital image that scanned using both mode is evaluated based on statistic image characteristic. The results showed that the quality of digitized image using transmission mode is better than using reflection mode. However, if direct digital imaging is used as a gold standard, image enhancement on digitized image is still required. Four methods, i.e. contrast stretching, HE, AHE, and CLAHE are used to attempt improve the quality digitized image. Evaluation of the preference image quality is performed based on objective criterion. The preference image quality for digitized panoramic image can be obtained by using image enhancement based on CLAHE-Rayleigh method, that indicated by the lowest value of mean, standard deviation, RMSE, and average difference and the higher value of NAE and SAE.","PeriodicalId":325365,"journal":{"name":"2012 International Conference on System Engineering and Technology (ICSET)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128876227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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