Pub Date : 2012-10-25DOI: 10.1109/ICSENGT.2012.6339281
Y. Ariyana, A. I. Wuryandari
Information technology currently supports the development of human interaction with virtual environment, this development will continue in developing in the form of Human Computer Interaction (HCI). In this study, how the environment 3D virtual computer should be able to recognize human hand as part as virtual object, so it can interact with virtual environment. HCI is a study in which the relationship between humans and computing technology and how computers are designed for easy to use by human, more practical and more intuitive. HCI emphasizes how human interaction with computer technology. This research is using use 3D transformation to digital objects used in computer graphics, transformation of the basis for the movement of digital objects in interaction technique in virtual environment to interact between human hand and virtual object. Tracker is needed in virtual interaction by using Augmented Reality (AR), the problem that arise in AR is how to read marker, so it can display a virtual object that has been computed before, basically is how to read the geometry model of human hand, then the result from the processing of the human hand model geometry is used as a marker, so it can interact with a virtual environment on AR as one of the HCI model implementation. This process is intended for the movement of human hands that have been read as a virtual object can communicate virtually using image processing.
{"title":"Basic 3D interaction techniques in Augmented Reality","authors":"Y. Ariyana, A. I. Wuryandari","doi":"10.1109/ICSENGT.2012.6339281","DOIUrl":"https://doi.org/10.1109/ICSENGT.2012.6339281","url":null,"abstract":"Information technology currently supports the development of human interaction with virtual environment, this development will continue in developing in the form of Human Computer Interaction (HCI). In this study, how the environment 3D virtual computer should be able to recognize human hand as part as virtual object, so it can interact with virtual environment. HCI is a study in which the relationship between humans and computing technology and how computers are designed for easy to use by human, more practical and more intuitive. HCI emphasizes how human interaction with computer technology. This research is using use 3D transformation to digital objects used in computer graphics, transformation of the basis for the movement of digital objects in interaction technique in virtual environment to interact between human hand and virtual object. Tracker is needed in virtual interaction by using Augmented Reality (AR), the problem that arise in AR is how to read marker, so it can display a virtual object that has been computed before, basically is how to read the geometry model of human hand, then the result from the processing of the human hand model geometry is used as a marker, so it can interact with a virtual environment on AR as one of the HCI model implementation. This process is intended for the movement of human hands that have been read as a virtual object can communicate virtually using image processing.","PeriodicalId":325365,"journal":{"name":"2012 International Conference on System Engineering and Technology (ICSET)","volume":"16 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":"117185453","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.2012.6339330
B. Krisbiantoro, H. Hindersah, T. Mardiono
This documentation explains the architecture for aircraft simulation route of Search And Rescue (SAR) operations. This system provides functions for user as client (the SAR team in this case) for accessing map data onto GIS server throughout computer networking. Server provides clients with the map to create aircraft simulation route adjusted to earth 3 dimensions. Map data information and aircraft simulation route from its take-off up to latest position monitored on the radar are accessible online via computer networking. This simulation enables SAR team to determine the aircraft searching operation area suppose a flight accident happened. GeoServer is the GIS server that stores map data and provides clients with the requested information by applying Web Map Service (WMS) protocol. This protocol is the standardized map services by Open Geospatial Consortium (OGC). 3D map required the raster files which contained with elevation information in Digital Elevation Model (DEM) form.
{"title":"3D GIS system architecture for the aircraft simulation route of Search And Rescue operation","authors":"B. Krisbiantoro, H. Hindersah, T. Mardiono","doi":"10.1109/ICSENGT.2012.6339330","DOIUrl":"https://doi.org/10.1109/ICSENGT.2012.6339330","url":null,"abstract":"This documentation explains the architecture for aircraft simulation route of Search And Rescue (SAR) operations. This system provides functions for user as client (the SAR team in this case) for accessing map data onto GIS server throughout computer networking. Server provides clients with the map to create aircraft simulation route adjusted to earth 3 dimensions. Map data information and aircraft simulation route from its take-off up to latest position monitored on the radar are accessible online via computer networking. This simulation enables SAR team to determine the aircraft searching operation area suppose a flight accident happened. GeoServer is the GIS server that stores map data and provides clients with the requested information by applying Web Map Service (WMS) protocol. This protocol is the standardized map services by Open Geospatial Consortium (OGC). 3D map required the raster files which contained with elevation information in Digital Elevation Model (DEM) form.","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":"128549175","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.2012.6339307
R. Kurniawan, A. S. Rohman, E. M. Husni
Instructional media can help students understand the material described in the teacher as well as reducing the verbal explanation by the teacher. Media use 3D simulation game based learning can make students more interested and not bored in following the learning process. Domain there are two issues that need to be studied are: (1) analyze the effectiveness of learning from media interaction design of simulation-based learning game 3D Space Exploration, (2) establish a prototype design and implementation of learning materials for junior high school students in Indonesia for three classes in the introduction of solar system by using a 3D simulation game based on Celestia platform. The results of the study obtained an average score of 3.20 of scale 4 shows that the respondents agree on its use 3D simulation game Space Exploration. Product development still needs to be done primarily on the addition of the completeness of the material so it can be used also by the general user.
教学媒体可以帮助学生理解教师所描述的材料，并减少教师的口头解释。媒体运用三维模拟游戏为基础的学习，可以使学生在学习过程中更感兴趣，不感到枯燥。领域中需要研究的两个问题是:(1)分析基于模拟学习游戏《3D Space Exploration》的媒体学习交互设计的有效性;(2)利用基于Celestia平台的三维模拟游戏，建立印尼初中生太阳系介绍三班学习材料的原型设计与实现。该研究的结果获得了量表4的平均得分3.20，表明受访者同意其使用3D模拟游戏《太空探索》。产品开发仍然需要主要在添加材料的完整性上进行，以便它也可以被一般用户使用。
{"title":"The design and analysis of the Space Exploration 3D simulation game","authors":"R. Kurniawan, A. S. Rohman, E. M. Husni","doi":"10.1109/ICSENGT.2012.6339307","DOIUrl":"https://doi.org/10.1109/ICSENGT.2012.6339307","url":null,"abstract":"Instructional media can help students understand the material described in the teacher as well as reducing the verbal explanation by the teacher. Media use 3D simulation game based learning can make students more interested and not bored in following the learning process. Domain there are two issues that need to be studied are: (1) analyze the effectiveness of learning from media interaction design of simulation-based learning game 3D Space Exploration, (2) establish a prototype design and implementation of learning materials for junior high school students in Indonesia for three classes in the introduction of solar system by using a 3D simulation game based on Celestia platform. The results of the study obtained an average score of 3.20 of scale 4 shows that the respondents agree on its use 3D simulation game Space Exploration. Product development still needs to be done primarily on the addition of the completeness of the material so it can be used also by the general user.","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":"122383400","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.2012.6339304
M. Rosalina, W. A. Ida, T. Mardiono
Nuclear learning in many schools in Indonesia tend to memorizing the material almost certainly not occur nuanced learning “process”, it makes learning less attractive and therefore contributes to student motivation and science literacy. Each student has a brain that is unique and has different characteristics of good abilities, interest and talents. As one effort to overcome the above problem is to apply the learning model that is more interactive and interesting, one of is the use of multimodel learning by combining learning STL (Science Technology Literacy) and PBL (Problem Based Learning) in the game SAN which diagnosis of artery coronary disease using 99mTc-Tetrofosmin. The phase of learning that was developed is the contact phase, curiousity phase, elaboration phase, decision making phase, nexus phase, and assessment phase. Test conducted to determine the increase student science literacy and motivation with three designs, namely the class control (conventional learning), class of experiment one (use of game only), class of experiment two (game and discussion). From the test results obtained by increasing the value of n-gain 38.28% in the control class, 46.66% of experiments class one and 65.85% of experiments class two, the conclusion of the study can be obtained using games more increase significant science literacy than conventional learning, the result will be better when there is additional discussion in the learning. Motivation to learn has increased to a maximum of 72.67% criteria. Need for repairing and further development to obtain better results.
印度尼西亚许多学校的核学习倾向于记忆材料，几乎肯定不会发生细致入微的学习“过程”，这使得学习缺乏吸引力，因此有助于学生的动机和科学素养。每个学生的大脑都是独一无二的，具有不同的能力、兴趣和天赋特征。克服上述问题的一种方法是应用更具互动性和趣味性的学习模型，其中一种方法是在使用99mTc-Tetrofosmin诊断冠心病的游戏SAN中，将STL (Science Technology Literacy)学习与PBL (problem Based learning)学习相结合，使用多模型学习。所开发的学习阶段是接触阶段、好奇阶段、细化阶段、决策阶段、联系阶段和评估阶段。实验采用三种设计，即控制班(常规学习)、实验一班(仅使用游戏)、实验二班(游戏和讨论)，以确定学生科学素养和动机的提高。从测试结果来看，通过提高n-增益值在对照组中为38.28%，在实验一班中为46.66%，在实验二中为65.85%，可以得出使用游戏比常规学习更能显著提高科学素养的结论，当学习中有额外的讨论时，效果会更好。学习动机已增至72.67%的最高标准。需要修复和进一步开发，以获得更好的效果。
{"title":"Design and implementation multiple models of learning in 3D simulation game of nuclear application (SAN) (Case study : Diagnosis of coronary artery disease using 99mTc-Tetrofosmin)","authors":"M. Rosalina, W. A. Ida, T. Mardiono","doi":"10.1109/ICSENGT.2012.6339304","DOIUrl":"https://doi.org/10.1109/ICSENGT.2012.6339304","url":null,"abstract":"Nuclear learning in many schools in Indonesia tend to memorizing the material almost certainly not occur nuanced learning “process”, it makes learning less attractive and therefore contributes to student motivation and science literacy. Each student has a brain that is unique and has different characteristics of good abilities, interest and talents. As one effort to overcome the above problem is to apply the learning model that is more interactive and interesting, one of is the use of multimodel learning by combining learning STL (Science Technology Literacy) and PBL (Problem Based Learning) in the game SAN which diagnosis of artery coronary disease using 99mTc-Tetrofosmin. The phase of learning that was developed is the contact phase, curiousity phase, elaboration phase, decision making phase, nexus phase, and assessment phase. Test conducted to determine the increase student science literacy and motivation with three designs, namely the class control (conventional learning), class of experiment one (use of game only), class of experiment two (game and discussion). From the test results obtained by increasing the value of n-gain 38.28% in the control class, 46.66% of experiments class one and 65.85% of experiments class two, the conclusion of the study can be obtained using games more increase significant science literacy than conventional learning, the result will be better when there is additional discussion in the learning. Motivation to learn has increased to a maximum of 72.67% criteria. Need for repairing and further development to obtain better results.","PeriodicalId":325365,"journal":{"name":"2012 International Conference on System Engineering and Technology (ICSET)","volume":"11 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":"130288106","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.2012.6339297
A. Setyanto, J. Woods, M. Ghanbari
Video contains rich information in the spatial and temporal domains. A single video shoot consists of a number of frames which are generally composed of similar objects which may have changed in position and size. The ability to recognize regions in the current frame is an important task in video analysis, but their subsequent recognition in the next frame receives little attention. This research utilizes a region based binary partition tree (BPT) as the content representation; object searching is conducted inside the binary tree and not in the original pixel domain. This work was conceived from the postulate: If an object exists inside a binary tree partition for a given video frame, can a corresponding branch be found in the BPT of the next frame? This is a difficult problem with a one to many and a many to one mapping and requires an innovative solution in the form of a Genetic algorithms (GA). GA's are ideally suited to this problem as the start and end conditions are known. This research proposes and achieves temporal correlation in region based BPTs using a genetic algorithm.
{"title":"Genetic algorithm for inter-frame region object temporal correlation in binary partition tree","authors":"A. Setyanto, J. Woods, M. Ghanbari","doi":"10.1109/ICSENGT.2012.6339297","DOIUrl":"https://doi.org/10.1109/ICSENGT.2012.6339297","url":null,"abstract":"Video contains rich information in the spatial and temporal domains. A single video shoot consists of a number of frames which are generally composed of similar objects which may have changed in position and size. The ability to recognize regions in the current frame is an important task in video analysis, but their subsequent recognition in the next frame receives little attention. This research utilizes a region based binary partition tree (BPT) as the content representation; object searching is conducted inside the binary tree and not in the original pixel domain. This work was conceived from the postulate: If an object exists inside a binary tree partition for a given video frame, can a corresponding branch be found in the BPT of the next frame? This is a difficult problem with a one to many and a many to one mapping and requires an innovative solution in the form of a Genetic algorithms (GA). GA's are ideally suited to this problem as the start and end conditions are known. This research proposes and achieves temporal correlation in region based BPTs using a genetic algorithm.","PeriodicalId":325365,"journal":{"name":"2012 International Conference on System Engineering and Technology (ICSET)","volume":"77 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":"130397822","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.2012.6339313
M. Z. Romdlony, B. Trilaksono, R. Ortega
The Ability to extract the maximum power of proton exchange membrane (PEM) fuel cell is the important issue for optimal design of fuel cell powered system. It is necessary to force the fuel cell to operate in a condition which match up with its maximum power point (MPP). MPP varies nonlinearly with the unpredictable variation in the fuel cell's operation condition. Thus, a maximum power point tracking (MPPT) controller is needed to deliver the maximum possible power to the load when a variation in the operation condition occur. The proposed control system consists of two-loop cascade controller with a DC-DC converter. The outer loop uses extremum seeking control to estimate the real-time MPP, and the inner loop uses that estimated value as a set-point for hysteretic control to force the fuel cell to operate at the estimated MPP by DC-DC boost converter. Extremum seeking control and hysteresis control are implemented on a dSPACE DS1104 controller board. For the experiment setup, small scale energy sources are operated, which is Constructor 50 W 10 A fuel cell. Simulation and experiment shows that this proposed control can achieve satisfactorily the maximum power point of fuel cell.
{"title":"Experimental study of extremum seeking control for maximum power point tracking of PEM fuel cell","authors":"M. Z. Romdlony, B. Trilaksono, R. Ortega","doi":"10.1109/ICSENGT.2012.6339313","DOIUrl":"https://doi.org/10.1109/ICSENGT.2012.6339313","url":null,"abstract":"The Ability to extract the maximum power of proton exchange membrane (PEM) fuel cell is the important issue for optimal design of fuel cell powered system. It is necessary to force the fuel cell to operate in a condition which match up with its maximum power point (MPP). MPP varies nonlinearly with the unpredictable variation in the fuel cell's operation condition. Thus, a maximum power point tracking (MPPT) controller is needed to deliver the maximum possible power to the load when a variation in the operation condition occur. The proposed control system consists of two-loop cascade controller with a DC-DC converter. The outer loop uses extremum seeking control to estimate the real-time MPP, and the inner loop uses that estimated value as a set-point for hysteretic control to force the fuel cell to operate at the estimated MPP by DC-DC boost converter. Extremum seeking control and hysteresis control are implemented on a dSPACE DS1104 controller board. For the experiment setup, small scale energy sources are operated, which is Constructor 50 W 10 A fuel cell. Simulation and experiment shows that this proposed control can achieve satisfactorily the maximum power point of fuel cell.","PeriodicalId":325365,"journal":{"name":"2012 International Conference on System Engineering and Technology (ICSET)","volume":"35 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":"122662989","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.2012.6339361
A. Purwarianti, Z. Hakim
Interactive Question Answering (IQA) is a branch of Question Answering (QA) with interactivity enhancement, enabling dialogue with users. This paper explain how to build a prototype of IQA system, with its supporting aspect such as understanding user's topic, knowledge structure, and information recording in dialogue. Tree data structure is used for structuring IQA knowledge base. Information recording througout dialogue is using Information State (IS) concept, adapted from two previous model: Poesio-Traum model and Cooper-Larsson Model. IS model is adjusted based on knowledge structure and a specific needs of Customer Service Representative behaviour. An interactivity testing is conducted to test whether aspects of IQA needs is fulfilled. We have succesfully built the prototype, using IS concept.
{"title":"Interactive Question Answering for Customer Service Representative using Information State concept","authors":"A. Purwarianti, Z. Hakim","doi":"10.1109/ICSENGT.2012.6339361","DOIUrl":"https://doi.org/10.1109/ICSENGT.2012.6339361","url":null,"abstract":"Interactive Question Answering (IQA) is a branch of Question Answering (QA) with interactivity enhancement, enabling dialogue with users. This paper explain how to build a prototype of IQA system, with its supporting aspect such as understanding user's topic, knowledge structure, and information recording in dialogue. Tree data structure is used for structuring IQA knowledge base. Information recording througout dialogue is using Information State (IS) concept, adapted from two previous model: Poesio-Traum model and Cooper-Larsson Model. IS model is adjusted based on knowledge structure and a specific needs of Customer Service Representative behaviour. An interactivity testing is conducted to test whether aspects of IQA needs is fulfilled. We have succesfully built the prototype, using IS concept.","PeriodicalId":325365,"journal":{"name":"2012 International Conference on System Engineering and Technology (ICSET)","volume":"311 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":"122702453","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.2012.6339363
H. Septanto, B. Trilaksono, A. Syaichu-Rohman, R. E. Poetro
This paper addresses on the stability analysis of the attitude control system using quaternion-based feedback control law that accommodates arcus-cotangent as a discontinuous elements in the control law. Three argumentations of the asymptotically stability guarantee of the attitude control system are proposed that stated in three theorems. The effectiveness of the proposed control law is shown through numerical simulation.
{"title":"On the stability analysis of a discontinuous quaternion attitude control system","authors":"H. Septanto, B. Trilaksono, A. Syaichu-Rohman, R. E. Poetro","doi":"10.1109/ICSENGT.2012.6339363","DOIUrl":"https://doi.org/10.1109/ICSENGT.2012.6339363","url":null,"abstract":"This paper addresses on the stability analysis of the attitude control system using quaternion-based feedback control law that accommodates arcus-cotangent as a discontinuous elements in the control law. Three argumentations of the asymptotically stability guarantee of the attitude control system are proposed that stated in three theorems. The effectiveness of the proposed control law is shown through numerical simulation.","PeriodicalId":325365,"journal":{"name":"2012 International Conference on System Engineering and Technology (ICSET)","volume":"4 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":"122734845","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.2012.6339340
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.2012.6339295
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).
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