{"title":"A Constrained Spatial-Temporal Frame Rate Control Model of Conversational Video for Multipath Transport System","authors":"Hao Li, W. Lei, Wei Zhang, Shaowei Liu, Y. Guan","doi":"10.1109/CCOMS.2018.8463279","DOIUrl":"https://doi.org/10.1109/CCOMS.2018.8463279","url":null,"abstract":"Conversational video service is becoming increasingly popular on the Internet. However, higher video resolution and frame rate are often accompanied by enlarging the bit rate of the video coding output, and further lead to a large bandwidth requirement. In this paper, we propose a constrained spatial-temporal frame rate control model for conversational video service, which combines video coding with the feedback of data transmission in multipath transmission to enhance rate control. The goal of the model is to optimize the constraint relationship among frame rate, resolution and bitrate, and achieve a better QoE of conversational video service. The target bitrate and frame rate are determined on the fly by considering the network condition. Moreover, the model introduces a new concept termed as region rate, which allows different regions (region of interests and non-region of interests) of a frame to have different rates in accordance with their importance. Furthermore, the paper adopts the perceptual video compression method to improve the perceptual quality, which allocates more resources to the ROIs and selects paths with appropriate status to transmit ROIs data. The experimental results show that the proposed method could control the bit rate while ensuring the video quality and realize the joint optimization of frame rate, resolution and bit rate in comparison to existing approaches.","PeriodicalId":405664,"journal":{"name":"2018 3rd International Conference on Computer and Communication Systems (ICCCS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129622855","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}
Munchuphon Chongchamsai, Sakkarin Sinchai, P. Wardkein, Surapol Boonjun
{"title":"Distance Measurement Technique Using Phase Difference of Two Reflected Ultrasonic Frequencies","authors":"Munchuphon Chongchamsai, Sakkarin Sinchai, P. Wardkein, Surapol Boonjun","doi":"10.1109/CCOMS.2018.8463283","DOIUrl":"https://doi.org/10.1109/CCOMS.2018.8463283","url":null,"abstract":"This paper proposes a simple method of distance measurement utilizing phase difference of two reflected ultrasonic frequencies. To obtain the phase difference, an alternating signal which contains two sinusoidal signals having different frequencies is fed to an ultrasonic transmitter. When the transmitted signal is reflected and received by the ultrasonic receiver, the received signal is first squared. Then, a time shift property of Fourier transform is applied to the squared signal to acquire the phase difference. The phase difference is converted to a time-of-flight (TOF) value and turned to the distance. To experiment the proposed technique, a DSP TMS620C6713 board is employed to generate the alternating signal as well as to receive the reflected signal, and to process the received signal. In the experiment, two sinusoidal signals having frequencies of 39.85 kHz and 40.6 kHz are used. The results show that the obtained distance by the presented approach has fairly low error only 0.15 centimeters compared to the actual distance.","PeriodicalId":405664,"journal":{"name":"2018 3rd International Conference on Computer and Communication Systems (ICCCS)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127875574","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}
{"title":"Color Image Coding Based on Block Truncation Coding using Quadtree Segmentation","authors":"Yu-Chen Hu, Yi-Hung Liu, I. Chang","doi":"10.1109/CCOMS.2018.8463236","DOIUrl":"https://doi.org/10.1109/CCOMS.2018.8463236","url":null,"abstract":"In this paper, we proposed a bit-rate adjustable color image compression technique based on block truncation coding. To exploit the similarity among the neighboring pixels, the quadtree segmentation technique is used to divide the color image into variable-sized blocks based on their block activities. Different rules are used to encode the image blocks of different sizes. Experimental results reveal that good image qualities of the reconstructed color images can be achieved by the proposed technique while keeping low bit rates.","PeriodicalId":405664,"journal":{"name":"2018 3rd International Conference on Computer and Communication Systems (ICCCS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133627139","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}
Monthon Intraraprasit, Wisuwat Sunhem, C. Jinjakam
{"title":"Interaction Behavior of Older Adults with Immersive Virtual Reality Application for Cognitive Training","authors":"Monthon Intraraprasit, Wisuwat Sunhem, C. Jinjakam","doi":"10.1109/CCOMS.2018.8463223","DOIUrl":"https://doi.org/10.1109/CCOMS.2018.8463223","url":null,"abstract":"Nowadays, older adults face health problems. The main problem is decreasing our brain skills. Memory, visuospatial skill, and cognitive functions are considered to be essence of the brain skills. These capabilities can performance by applying cognitive training or brain training. Currently, virtual reality (VR) technology is applied to cognitive training application. The results of training can be analyzed after several weeks, but it is a lack of interaction behavior analysis of older adults with VR application. The behavior analysis helps to design efficient program training, in other words, we can utilize better VR application with older adults who do not familiar with current technology. Moreover, we can understand behavior of older adult via VR application for their brain ability. VR application can be designed and kept log files for interaction behavior analysis. The algorithm for preliminary analysis is machine learning. Machine learning can predict score that measures brain's ability from the dataset. We adopted 2 models in this research. The first model is to predict the scores of visual short-term memory, called VSTM-model. The second model is to predict the scores of visuospatial skill, called VS-model. We performed baseline regression and support vector regression algorithm for score prediction of behavior. Root mean squared error is selected to measure performance of the algorithm; root mean squared error of baseline regression equal to 0.3012 in VSTM-model and 1.2427 in VS-model, and root mean squared error of support vector regression equal to 0.2876 in VSTM-model and 1.0536 in VS-model.","PeriodicalId":405664,"journal":{"name":"2018 3rd International Conference on Computer and Communication Systems (ICCCS)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116824632","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}
{"title":"Measurement of Air-Ground link over Virtual Forces Algorithm For Autonomous Aerial Drone Systems, VBCA","authors":"M. Mahamat, Adel Omer Dahmane, F. Domingue","doi":"10.1109/CCOMS.2018.8463275","DOIUrl":"https://doi.org/10.1109/CCOMS.2018.8463275","url":null,"abstract":"With recent technological advances, the capabilities of UAVs have rapidly increased and their use and role in society have also changed from the military to the civilian domain. Many studies have been made for the collaboration of several UVAS to accomplish a mission. But most of the studies done on the subject of FANET do not propose any overall approach to the network itself and remain fragmented, generally based on the final mission. The solutions proposed are not reproducible on other missions. This aspect pushes us to propose a solution independent of the mission and easily reproducible. Otherwise the positioning of nodes in FANETs can provide a mission-independent response. Reason why the solutions for positioning network nodes are numerous. One in particular offers a comprehensive and interesting approach. It is VBCA. This method has the particularity of positioning the nodes in 3-D. In general, the 3-D positioning becomes an NP-Hard problem. But with VBCA positioning is relatively simple. In this paper we present an optimization of communication in a topology based on the VBCA (Virtual forces Based Clustering Algorithm). The topology is optimized by the VBCA algorithm for a better coverage area. This method is 40% more efficient than existing approaches in terms of area coverage. In the first versions of VBCA, the performances in terms of communication between nodes have not been tested. The resulting network performances are very encouraging, in terms of throughput, delay, packets loss and signal strength. Therefore, this work provides a first answer to the performances in terms of network.","PeriodicalId":405664,"journal":{"name":"2018 3rd International Conference on Computer and Communication Systems (ICCCS)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131917650","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}
{"title":"A 370μW Ring VCO Based Injection-Locked Frequency Synthesizer for GPS Receiver","authors":"C. Yan, Jianhui Wu, Chen Hu","doi":"10.1109/CCOMS.2018.8463333","DOIUrl":"https://doi.org/10.1109/CCOMS.2018.8463333","url":null,"abstract":"An ultra-low power ring-type voltage controlled oscillator (VCO) based frequency synthesizer for Ll band Global Positioning System (GPS) receiver is presented in this paper. To minimize the power consumption and enlarge the multiple factor, we propose a four times frequency multiplier before the injection-locked oscillator (ILO), which consist of a passive poly-phase filter and an edge combiner. A continuous frequency tracking loop (FTL) is also implemented to calibrate the free-running frequency of injection-locked oscillator by using the quadrature outputs of ILO. The proposed injection-locked frequency synthesizer achieves −115dBc in-band phase noise and $370mu mathrm{W}$ power consumption, which profit from the pre-frequency multiplier and the FTL. The proposed frequency synthesizer is demonstrated in a 65nm CMOS technology. The integrated jitter is 2.7ps and the figure of merit (FOM) is −235.6dB.","PeriodicalId":405664,"journal":{"name":"2018 3rd International Conference on Computer and Communication Systems (ICCCS)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134303672","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}
Kim D. Gorro, M. J. Sabellano, Ken Gorro, C. Maderazo, Kris Capao
{"title":"Classification of Cyberbullying in Facebook Using Selenium and SVM","authors":"Kim D. Gorro, M. J. Sabellano, Ken Gorro, C. Maderazo, Kris Capao","doi":"10.1109/CCOMS.2018.8463326","DOIUrl":"https://doi.org/10.1109/CCOMS.2018.8463326","url":null,"abstract":"Cyberbullying is one of the emerging problems over the past few years especially to teenagers. Approximately 24% of teens goes online constantly, facilitated by the widespread availability of smartphones. Almost 21% of teens said the main reason they checked social media always was to make sure nobody was saying mean or bad things to them. Cyberbullying related Facebook posts were harvested by a customized web scraper tool. These harvested data were used for classification using Support Vector Machines (SVM) model. A total of 2263 data was used for training data, Facebook posts. Based on these posts, the study achieved the precision of 88% and the recall is 87%.","PeriodicalId":405664,"journal":{"name":"2018 3rd International Conference on Computer and Communication Systems (ICCCS)","volume":"446 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134414859","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}
D. K. Arif, D. Adzkiya, Mardlijah, Fatmawati, T. Asfihani, C. Imron, Fella Diandra Chrisandy
{"title":"Estimation Time Improvement of Heat Conduction Systems Using Balanced Truncation Method","authors":"D. K. Arif, D. Adzkiya, Mardlijah, Fatmawati, T. Asfihani, C. Imron, Fella Diandra Chrisandy","doi":"10.1109/CCOMS.2018.8463258","DOIUrl":"https://doi.org/10.1109/CCOMS.2018.8463258","url":null,"abstract":"The model reduction process uses a balanced cut, obtains a reduced system that has fewer states than the initial system. This makes it difficult to compare the state of the reduced system with the initial system. Therefore, identification is needed to find the suitability of the state variables. In this paper, we discuss the process of identifying and estimating state variables in the reduced discrete-time linear system and implement these problems on heat conduction model. Model reduction using balanced truncation method is applied to discrete-time linear system of order s which is stable, controllable and observable in order to obtain the reduced system with order n that has a same characteristic. On the other hand, identification of the state variables from the reduced system is intended to simplify the comparison of the estimation result between the reduced system and the initial system. In this case, the Kalman filter algorithm is required for the estimation process. Furthemore as a case study, those problems are applied on heat conduction model. Model reduction using balanced truncation method is only applicable on heat conduction model which is stable, controllable and observable. Kalman filter algorithm can be implemented on the reduced system of heat conduction model, similarly identification of the state variables can be applied on the result of reduced system estimation. Based on the error values, the best estimation result is the estimation process of the initial system which obtained the smallest error, with a relative precentage change of at least 73, 2 %. In other case, based on the computational time, reduced system estimation is faster than the estimation process of the initial system.","PeriodicalId":405664,"journal":{"name":"2018 3rd International Conference on Computer and Communication Systems (ICCCS)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124531797","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}
Pattraporn Sirisilpa, Sakkarin Sinchai, P. Wardkein, W. Sangpisit
{"title":"Human Identification Technique Based Behavioural Standing Still on Force Plates","authors":"Pattraporn Sirisilpa, Sakkarin Sinchai, P. Wardkein, W. Sangpisit","doi":"10.1109/CCOMS.2018.8463268","DOIUrl":"https://doi.org/10.1109/CCOMS.2018.8463268","url":null,"abstract":"This article proposes the human identification technique based behavioural standing still on force plates. Since the body sway that occurs during a quiet stand is caused by the movement of the center of mass and the center of pressure, thus the transfer of weight on the left and right feet of each person has a unique characteristic. This characteristic is then applied to identify individuals. In addition, the signals obtained from eyes open and eyes close condition are studied. The processing results are obtained by MATLAB program. The results of the proposed method show that the behavioural standing still signal in eyes open condition can be applied for human identification. However, the further study and improvement of the proposed principle is needed to acquire better in false rate of identification.","PeriodicalId":405664,"journal":{"name":"2018 3rd International Conference on Computer and Communication Systems (ICCCS)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127123441","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}
{"title":"Classification of Humans and Bots in Two Typical Two-player Computer Games","authors":"Jung-Ying Wang","doi":"10.1109/CCOMS.2018.8463277","DOIUrl":"https://doi.org/10.1109/CCOMS.2018.8463277","url":null,"abstract":"The aim of this paper is to explore whether or not the artificial intelligence (AI) embedded in traditional and typical computer games can be easily identified by players. We pay particular attention on AI simulation in simple games. Therefore, a 2D shooting game and a car racing game are developed by using different game AIs (game bots). Meanwhile, a Turing Test for computer game bots is implemented to test the abilities of above two computer games playing agents (bots) to simulate human game playing behavior. For the 2D shooting game three types of game AIs, random moving, finite state machine (FSM) and neural networks (NN), are used as agents to test. The results demonstrate that more humanized AI shows better human game playing behavior then others. For the race game a waypoints AI are developed. The experimental results show that although the paths design have a variety of changes, only 15% players be cheated. Careful review of the player's controls shows that players are more often fine-tune the location of the car to center it in the track. The research results can be seen as the based line of simple game AI development.","PeriodicalId":405664,"journal":{"name":"2018 3rd International Conference on Computer and Communication Systems (ICCCS)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123436256","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}