Pub Date : 2018-07-01DOI: 10.1109/CCE.2018.8465571
Trang Nguyen, Y. Jang
This paper presents technical specifications and implementation guidance for an Optical Camera Communication PHY mode within the ongoing IEEE 802.15.7m standard. Herein, a new design of the tri-color-band screen code called Asynchronous Quick Link (A-QL) along with its novel technical features is reviewed. The configuration for communications is performed via PHY PIB attributes, a promising software-based configuration. Particular demonstration achieving BER 10−5 within 3m distance is disclosed.
本文提出了一种符合现行IEEE 802.15.7m标准的光学相机通信PHY模式的技术规范和实现指南。本文介绍了一种新的三色带屏幕编码——异步快速链接(异步Quick Link, a - ql)及其新技术特点。通信配置是通过PHY PIB属性执行的，这是一种很有前途的基于软件的配置。公开了在3m距离内实现BER 10−5的具体演示。
{"title":"Reliable Software-Defined Optical Camera Communication over Screen","authors":"Trang Nguyen, Y. Jang","doi":"10.1109/CCE.2018.8465571","DOIUrl":"https://doi.org/10.1109/CCE.2018.8465571","url":null,"abstract":"This paper presents technical specifications and implementation guidance for an Optical Camera Communication PHY mode within the ongoing IEEE 802.15.7m standard. Herein, a new design of the tri-color-band screen code called Asynchronous Quick Link (A-QL) along with its novel technical features is reviewed. The configuration for communications is performed via PHY PIB attributes, a promising software-based configuration. Particular demonstration achieving BER 10−5 within 3m distance is disclosed.","PeriodicalId":118716,"journal":{"name":"2018 IEEE Seventh International Conference on Communications and Electronics (ICCE)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131153362","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 : 2018-07-01DOI: 10.1109/CCE.2018.8465731
A. Nguyen-Ngoc, Simon Raffeck, Stanislav Lange, Stefan Geissler, T. Zinner, P. Tran-Gia
The increased popularity of Software Defined Networking (SDN) drives the development and research of all involved components. In particular, state-of-the-art SDN controllers are a central part of the resulting network architecture and have a large impact on the performance of the entire network. Hence, it is necessary to quantify various performance indicators of the SDN controller in order to assess its feasibility in the context of different network characteristics such as topology and network size w.r.t. the number of nodes and links.To this end, we extend the open-source controller benchmarking tool OFCProbe with several novel modules that are capable of recording relevant performance metrics and demonstrate their use in the context of benchmarking the ONOS controller. Furthermore, we investigate the impact of different types of topology characteristics on the performance of the controller.In this work, we focus on several performance indicators for SDN controllers. First, the time that the ONOS controller needs to discover the network topology and update its internal representation of the topology. Second, we investigate the duration of the installation of flow rules that are used for reactive path provisioning. Finally, we measure the response time of the controller when dealing with asynchronous messages.
{"title":"Benchmarking the ONOS Controller with OFCProbe","authors":"A. Nguyen-Ngoc, Simon Raffeck, Stanislav Lange, Stefan Geissler, T. Zinner, P. Tran-Gia","doi":"10.1109/CCE.2018.8465731","DOIUrl":"https://doi.org/10.1109/CCE.2018.8465731","url":null,"abstract":"The increased popularity of Software Defined Networking (SDN) drives the development and research of all involved components. In particular, state-of-the-art SDN controllers are a central part of the resulting network architecture and have a large impact on the performance of the entire network. Hence, it is necessary to quantify various performance indicators of the SDN controller in order to assess its feasibility in the context of different network characteristics such as topology and network size w.r.t. the number of nodes and links.To this end, we extend the open-source controller benchmarking tool OFCProbe with several novel modules that are capable of recording relevant performance metrics and demonstrate their use in the context of benchmarking the ONOS controller. Furthermore, we investigate the impact of different types of topology characteristics on the performance of the controller.In this work, we focus on several performance indicators for SDN controllers. First, the time that the ONOS controller needs to discover the network topology and update its internal representation of the topology. Second, we investigate the duration of the installation of flow rules that are used for reactive path provisioning. Finally, we measure the response time of the controller when dealing with asynchronous messages.","PeriodicalId":118716,"journal":{"name":"2018 IEEE Seventh International Conference on Communications and Electronics (ICCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114133448","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 : 2018-07-01DOI: 10.1109/CCE.2018.8465710
Nai-Kuei Chen, Shi-Yao Zhou, Chih-Chien Cheng, Chung-Yen Su
The researches of Internet of things are getting more and more popular these years. To exchange secret data through the internet, the reversible data hiding technique plays an important role. As we know, since medical images generally consist of many pure black and white points, traditional reversible data hiding techniques encounter some bottlenecks in medical images. These points are called boundary points and they may cause the overflow and underflow problems to happen after data hiding. In this paper, we propose a new reversible data hiding method to solve these problems. The method is a hybrid scheme based on the one-dimension and two-dimension difference expansions. We introduce an efficient classification to interchange the expansion schemes. In addition, we introduce boundary expandable schemes. We demonstrate the effectiveness of the proposed method across a wide range of medical images. Compared with the previous methods, the proposed one has higher hiding capacity, higher image quality, and less size of location map. To get further applications precisely, we also demonstrate the proposed scheme on a mobile device to show its application on the internet of healthcare.
{"title":"Reversible Data Hiding for Medical Images Using Boundary Expandable Schemes","authors":"Nai-Kuei Chen, Shi-Yao Zhou, Chih-Chien Cheng, Chung-Yen Su","doi":"10.1109/CCE.2018.8465710","DOIUrl":"https://doi.org/10.1109/CCE.2018.8465710","url":null,"abstract":"The researches of Internet of things are getting more and more popular these years. To exchange secret data through the internet, the reversible data hiding technique plays an important role. As we know, since medical images generally consist of many pure black and white points, traditional reversible data hiding techniques encounter some bottlenecks in medical images. These points are called boundary points and they may cause the overflow and underflow problems to happen after data hiding. In this paper, we propose a new reversible data hiding method to solve these problems. The method is a hybrid scheme based on the one-dimension and two-dimension difference expansions. We introduce an efficient classification to interchange the expansion schemes. In addition, we introduce boundary expandable schemes. We demonstrate the effectiveness of the proposed method across a wide range of medical images. Compared with the previous methods, the proposed one has higher hiding capacity, higher image quality, and less size of location map. To get further applications precisely, we also demonstrate the proposed scheme on a mobile device to show its application on the internet of healthcare.","PeriodicalId":118716,"journal":{"name":"2018 IEEE Seventh International Conference on Communications and Electronics (ICCE)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125797054","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 : 2018-07-01DOI: 10.1109/CCE.2018.8465572
N. Ti, Long Bao Le
In this paper, the computation offloading problem for the hierarchical fog-cloud computing (FCC) system with unmanned aerial vehicles (UAVs) is studied. The hierarchical FCC, which exploits both centralized and distributed computing architectures, is very promising to support computation offloading in emerging computation-demanding mobile applications. In our design, UAVs integrating computing platforms act as small distributed clouds while the macro base station (BS) integrates a more powerful central cloud server. Furthermore, the multiple input multiple output (MIMO) technology is employed for data communication. We assume that mobile users (UEs) and (UAVs) can change their locations over time and we consider the joint task offloading, user-cloud/cloudlet association, transmit power allocation, and path planning to minimize the total weighted consumed power of the system. To tackle the underlying non-convex mixed integer non-linear program (MINLP), we propose an iterative two-phase algorithm. Specifically, we iteratively solve the user-cloud/cloudlet association problem in the first phase and address the joint resource allocation, path planning problem in the second phase. Furthermore, we employ the difference of convex (DC) optimization method in the second phase to approximate the non-convex bilinear functions and propose to transform the non-convex INLP to the integer linear program (ILP) in the first phase. Numerical studies confirm that the proposed design for the FCC architecture achieves great performance benefits for executing mobile computation tasks.
{"title":"Joint Resource Allocation, Computation Offloading, and Path Planning for UAV Based Hierarchical Fog-Cloud Mobile Systems","authors":"N. Ti, Long Bao Le","doi":"10.1109/CCE.2018.8465572","DOIUrl":"https://doi.org/10.1109/CCE.2018.8465572","url":null,"abstract":"In this paper, the computation offloading problem for the hierarchical fog-cloud computing (FCC) system with unmanned aerial vehicles (UAVs) is studied. The hierarchical FCC, which exploits both centralized and distributed computing architectures, is very promising to support computation offloading in emerging computation-demanding mobile applications. In our design, UAVs integrating computing platforms act as small distributed clouds while the macro base station (BS) integrates a more powerful central cloud server. Furthermore, the multiple input multiple output (MIMO) technology is employed for data communication. We assume that mobile users (UEs) and (UAVs) can change their locations over time and we consider the joint task offloading, user-cloud/cloudlet association, transmit power allocation, and path planning to minimize the total weighted consumed power of the system. To tackle the underlying non-convex mixed integer non-linear program (MINLP), we propose an iterative two-phase algorithm. Specifically, we iteratively solve the user-cloud/cloudlet association problem in the first phase and address the joint resource allocation, path planning problem in the second phase. Furthermore, we employ the difference of convex (DC) optimization method in the second phase to approximate the non-convex bilinear functions and propose to transform the non-convex INLP to the integer linear program (ILP) in the first phase. Numerical studies confirm that the proposed design for the FCC architecture achieves great performance benefits for executing mobile computation tasks.","PeriodicalId":118716,"journal":{"name":"2018 IEEE Seventh International Conference on Communications and Electronics (ICCE)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126493957","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 : 2018-07-01DOI: 10.1109/CCE.2018.8465724
N. Gray, Stanislav Lange, T. Zinner, Benedikt Pfaff, D. Hock
With the increasing number of devices, protocols and applications, today’s networks are becoming more and more complex. Hence, Software-defined Networking (SDN) tries to address this issue by separating the data from the control plane and by providing centralized interfaces for network configuration. As legacy devices cannot be replaced instantly due to high costs, both network segments have to be operated in coexistence with defined joints at their edges. To ensure a smooth operation, both controlling instances of these segments are required to exchange information. In this work, we design and implement a data model for storing the information needed to keep the controller and a Network Management System (NMS) synchronized, which are responsible for configuring the SDN-enabled network and the legacy devices respectively. For this, we implement and evaluate a total of three different synchronization strategies by the example of an SDN-based Bring Your Own Device (BYOD) use case.
{"title":"Evaluation of a Distributed Control Plane for Managing Heterogeneous SDN-enabled and Legacy Networks","authors":"N. Gray, Stanislav Lange, T. Zinner, Benedikt Pfaff, D. Hock","doi":"10.1109/CCE.2018.8465724","DOIUrl":"https://doi.org/10.1109/CCE.2018.8465724","url":null,"abstract":"With the increasing number of devices, protocols and applications, today’s networks are becoming more and more complex. Hence, Software-defined Networking (SDN) tries to address this issue by separating the data from the control plane and by providing centralized interfaces for network configuration. As legacy devices cannot be replaced instantly due to high costs, both network segments have to be operated in coexistence with defined joints at their edges. To ensure a smooth operation, both controlling instances of these segments are required to exchange information. In this work, we design and implement a data model for storing the information needed to keep the controller and a Network Management System (NMS) synchronized, which are responsible for configuring the SDN-enabled network and the legacy devices respectively. For this, we implement and evaluate a total of three different synchronization strategies by the example of an SDN-based Bring Your Own Device (BYOD) use case.","PeriodicalId":118716,"journal":{"name":"2018 IEEE Seventh International Conference on Communications and Electronics (ICCE)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131469060","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 : 2018-07-01DOI: 10.1109/CCE.2018.8465717
H. Vu, N. Tran, L. Pham-Nguyen, Huy-Dung Han
Control Moment Gyroscope (CMG) is used extensively in many mechanical balancing systems because of its power-efficient operation. This study aims to explore the balancing capability of CMG when using the Linear–Quadratic–Gaussian (LQG) regulator. A two rigid body model physical system including a CMG and a single degree of freedom balancing object is modeled. LQG-based balancing control system with Kalman filter for estimating the state of the balancing object is developed. Simulation results show that the LQG regulator achieves better performance than the conventional PID one in terms of reaction time, noise and weight. An experimental setup shows that the CMG is able to balance a heavy system with a small tilt angle. The system can even keep balance when an external force is applied thanks to the counter torque provided by the CMG.
{"title":"LQG Regulator for Control Moment Gyroscope based Balancing System","authors":"H. Vu, N. Tran, L. Pham-Nguyen, Huy-Dung Han","doi":"10.1109/CCE.2018.8465717","DOIUrl":"https://doi.org/10.1109/CCE.2018.8465717","url":null,"abstract":"Control Moment Gyroscope (CMG) is used extensively in many mechanical balancing systems because of its power-efficient operation. This study aims to explore the balancing capability of CMG when using the Linear–Quadratic–Gaussian (LQG) regulator. A two rigid body model physical system including a CMG and a single degree of freedom balancing object is modeled. LQG-based balancing control system with Kalman filter for estimating the state of the balancing object is developed. Simulation results show that the LQG regulator achieves better performance than the conventional PID one in terms of reaction time, noise and weight. An experimental setup shows that the CMG is able to balance a heavy system with a small tilt angle. The system can even keep balance when an external force is applied thanks to the counter torque provided by the CMG.","PeriodicalId":118716,"journal":{"name":"2018 IEEE Seventh International Conference on Communications and Electronics (ICCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130590571","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 : 2018-07-01DOI: 10.1109/CCE.2018.8465746
Truong-Xuan Do, Younghan Kim
Network function virtualization is reshaping the 5G mobile core network which is monolithic and hardware-based design into cloud-based and service-based design. In 5G mobile core network, core network functions are redesigned as virtual network functions which are classified as state management functions and stateless control and data plane functions. In such new 5G network architecture, the stateless control and data plane functions can be scalable and placed near all radio access networks. However, the placement problem of state management functions which involve more design objectives is more complicated to tackle. In this paper, we formulate a multi-objective optimization problem which takes into account the state transfer frequency and network latency as key design objectives. We propose three solutions to this problem and evaluate our solutions by changing network environment parameters.
{"title":"Latency-aware Placement for State Management Functions in Service-based 5G Mobile Core Network","authors":"Truong-Xuan Do, Younghan Kim","doi":"10.1109/CCE.2018.8465746","DOIUrl":"https://doi.org/10.1109/CCE.2018.8465746","url":null,"abstract":"Network function virtualization is reshaping the 5G mobile core network which is monolithic and hardware-based design into cloud-based and service-based design. In 5G mobile core network, core network functions are redesigned as virtual network functions which are classified as state management functions and stateless control and data plane functions. In such new 5G network architecture, the stateless control and data plane functions can be scalable and placed near all radio access networks. However, the placement problem of state management functions which involve more design objectives is more complicated to tackle. In this paper, we formulate a multi-objective optimization problem which takes into account the state transfer frequency and network latency as key design objectives. We propose three solutions to this problem and evaluate our solutions by changing network environment parameters.","PeriodicalId":118716,"journal":{"name":"2018 IEEE Seventh International Conference on Communications and Electronics (ICCE)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130721975","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 : 2018-07-01DOI: 10.1109/CCE.2018.8465751
P. Zahradnik, Michal Susta, B. Simák, M. Vlcek
A novel approximating polynomial of an equiripple low-pass FIR filter is presented. It represents an optimal equiripple polynomial approximation of two constants in two disjoint intervals. It also provides an insight into the nature of the approximation problem. The developed equiripple approximation is illustrated in two examples.
{"title":"Approximation of Equiripple Low-pass FIR Filters","authors":"P. Zahradnik, Michal Susta, B. Simák, M. Vlcek","doi":"10.1109/CCE.2018.8465751","DOIUrl":"https://doi.org/10.1109/CCE.2018.8465751","url":null,"abstract":"A novel approximating polynomial of an equiripple low-pass FIR filter is presented. It represents an optimal equiripple polynomial approximation of two constants in two disjoint intervals. It also provides an insight into the nature of the approximation problem. The developed equiripple approximation is illustrated in two examples.","PeriodicalId":118716,"journal":{"name":"2018 IEEE Seventh International Conference on Communications and Electronics (ICCE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133834911","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 : 2018-07-01DOI: 10.1109/CCE.2018.8465578
Nhan Ly-Trong, Chuong Dang-Le-Bao, Quan Le-Trung
Testing new applications and network protocols in IoT systems is a challenging and time-consuming task. As a result of this, a significant number of testbed platforms have been built in recent few decades. In this paper, we present our work-in-progress IoTs testbed, namely UiTiOt, which is a Container-based testbed for wireless/IoTs networks. In contrast to many existing testbeds using real devices, we use emulation-based approach to achieve the cost-effective objectives. QOMET – a well-known network emulation tool, is deployed as a key-point component in our system to imitate the wireless IoTs communication behaviors in a wired network, in real time. Our research aims to build a testbed with large-scalability, easy-to-use, high reliability as well as the flexibility in the deployment of multiples experimental scenarios at a reasonable cost. Taking advance of cloud computing technology, our testbed deployed the experimental nodes on the OpenStack infrastructure at the University of Information Technology (UiT) to exploit the advantage ‘pay-as-you-go’ of cloud computing. In addition, Container which is a state-of-the-art virtualization platform has also been using in UiTiOt to resolve the problem of scalability. In order to show up the performance and the reliability of our testbed, several experiments were carried out and discussed in this paper.
{"title":"Towards a large-scale IoT Emulation Testbed based on Container Technology","authors":"Nhan Ly-Trong, Chuong Dang-Le-Bao, Quan Le-Trung","doi":"10.1109/CCE.2018.8465578","DOIUrl":"https://doi.org/10.1109/CCE.2018.8465578","url":null,"abstract":"Testing new applications and network protocols in IoT systems is a challenging and time-consuming task. As a result of this, a significant number of testbed platforms have been built in recent few decades. In this paper, we present our work-in-progress IoTs testbed, namely UiTiOt, which is a Container-based testbed for wireless/IoTs networks. In contrast to many existing testbeds using real devices, we use emulation-based approach to achieve the cost-effective objectives. QOMET – a well-known network emulation tool, is deployed as a key-point component in our system to imitate the wireless IoTs communication behaviors in a wired network, in real time. Our research aims to build a testbed with large-scalability, easy-to-use, high reliability as well as the flexibility in the deployment of multiples experimental scenarios at a reasonable cost. Taking advance of cloud computing technology, our testbed deployed the experimental nodes on the OpenStack infrastructure at the University of Information Technology (UiT) to exploit the advantage ‘pay-as-you-go’ of cloud computing. In addition, Container which is a state-of-the-art virtualization platform has also been using in UiTiOt to resolve the problem of scalability. In order to show up the performance and the reliability of our testbed, several experiments were carried out and discussed in this paper.","PeriodicalId":118716,"journal":{"name":"2018 IEEE Seventh International Conference on Communications and Electronics (ICCE)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131199552","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 : 2018-07-01DOI: 10.1109/CCE.2018.8465733
C. Perra, D. Giusto
A light field image describes a sampling of the intensity and direction of the light rays in space. The recent technological advances in light field camera devices are fostering the development of novel imaging application. Some of the main applications are post-processing for interactive image perspective change, image refocusing, point cloud reconstruction, and image segmentation. The problem of light field data compression is a current research topic for international standardization bodies, industries, and research institutes. This paper explores the problem of compression with respect to light field image refocusing application. The main contribution of this paper is an analysis of the performance of high-efficiency video coding in terms of peak signal to noise ratio and structural-similarity index metric versus compression ratio. The experimental analysis has been performed on a reference dataset currently used for the standardization activities of ISO/IEC JPEG Pleno and shows the tradeoff between compression and objective quality at different quantization parameters.
{"title":"An analysis of HEVC compression for light field image refocusing applications","authors":"C. Perra, D. Giusto","doi":"10.1109/CCE.2018.8465733","DOIUrl":"https://doi.org/10.1109/CCE.2018.8465733","url":null,"abstract":"A light field image describes a sampling of the intensity and direction of the light rays in space. The recent technological advances in light field camera devices are fostering the development of novel imaging application. Some of the main applications are post-processing for interactive image perspective change, image refocusing, point cloud reconstruction, and image segmentation. The problem of light field data compression is a current research topic for international standardization bodies, industries, and research institutes. This paper explores the problem of compression with respect to light field image refocusing application. The main contribution of this paper is an analysis of the performance of high-efficiency video coding in terms of peak signal to noise ratio and structural-similarity index metric versus compression ratio. The experimental analysis has been performed on a reference dataset currently used for the standardization activities of ISO/IEC JPEG Pleno and shows the tradeoff between compression and objective quality at different quantization parameters.","PeriodicalId":118716,"journal":{"name":"2018 IEEE Seventh International Conference on Communications and Electronics (ICCE)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122169501","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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