{"title":"Noise removal of CBCT images using an adaptive anisotropic diffusion filter","authors":"E. Yılmaz, T. Kayikçioglu, S. Kayıpmaz","doi":"10.1109/TSP.2017.8076067","DOIUrl":"https://doi.org/10.1109/TSP.2017.8076067","url":null,"abstract":"In this work we proposed an adaptive anisotropic filtering method for removing unwanted noise information that may occur in cone beam computed tomography (CBCT) images. The data used in this study consist of 1200 different image sections obtained from 30 different patients who came to Karadeniz Technical University, Faculty of Dentistry, Department of Oral Diagnosis and Radiology Clinic for routine controls. At first, to identify 2D image sections that do not contain noise information, we measured noise levels in CBCT dataset sections using a noise level estimation method. Then, we applied different levels of noise to those noise-free images. We used anisotropic diffusion filter (Perona and Malik's filter), an automatic anisotropic filter (Tsiotsios and Petrou's method), and our adaptive anisotropic filtering method to remove noise information from those images. Afterward, we obtained peak signal to noise ratio (PSNR) and mean absolute error (MAE) values derived from the results. Proposed adaptive anisotropic diffusion filter seems to be a good choice for removing noise that may occur on CBCT image sections.","PeriodicalId":256818,"journal":{"name":"2017 40th International Conference on Telecommunications and Signal Processing (TSP)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128513562","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}
E. Lagunas, Lei Lei, S. Maleki, S. Chatzinotas, B. Ottersten
{"title":"Power allocation for in-band full-duplex self-backhauling","authors":"E. Lagunas, Lei Lei, S. Maleki, S. Chatzinotas, B. Ottersten","doi":"10.1109/TSP.2017.8075953","DOIUrl":"https://doi.org/10.1109/TSP.2017.8075953","url":null,"abstract":"Ultra-dense cellular networks are emerging as one key characteristic of 5G wireless networks. In this context, frequency reuse is a fundamental technology enabler for efficient utilization of limited spectrum resources. In this paper, we investigate the in-band Full-Duplex (FD) self-backhauling architecture, in which Base Stations (BSs) operate on the same spectrum used by the users to access the network for backhauling purposes. In such a scenario, both cross-tier interference and self-interference due to the FD scheme at the BS should be taken into consideration. Apart from the frequency reuse, the network densification comes with the challenge of proper backhaul provisioning. In this paper, we propose a power allocation strategy for both the backhaul and access network such that the sum-rate is maximized and specifically tailored to tackle backhaul congestion.","PeriodicalId":256818,"journal":{"name":"2017 40th International Conference on Telecommunications and Signal Processing (TSP)","volume":"2015 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121656993","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}
Onur Dursun Toren, Emre Ayduslu, Yucel Aydin, A. Özen
{"title":"A Novel Hybrid OFDM Technique for 5G","authors":"Onur Dursun Toren, Emre Ayduslu, Yucel Aydin, A. Özen","doi":"10.1109/TSP.2017.8075967","DOIUrl":"https://doi.org/10.1109/TSP.2017.8075967","url":null,"abstract":"A novel hybrid orthogonal frequency division multiplexing (H-OFDM) technique, for 5G candidate waveforms, has been proposed to improve the performance of conventional OFDM systems in this paper. In H-OFDM system instead of conventional cyclic prefixes (CPs) it is used hybrid CP as a guard interval. The hybrid CP consists of zero tail (ZT), unique word (UW) and CP. Computer simulations have been performed to show the performance of the proposed system in stationary and non-stationary frequency selective Rayleigh fading channels. The obtained simulation results using IEEE 802.16 physical layer specifications have demonstrated that the proposed H-OFDM method has considerably better performance and Doppler shift tracking than conventional OFDM.","PeriodicalId":256818,"journal":{"name":"2017 40th International Conference on Telecommunications and Signal Processing (TSP)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120936777","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":"Effect of node position on BER performance and data throughput of on-body medical body area networks (MBANs)","authors":"Nada El-Maradny, H. Shaban, M. A. El-Nasr","doi":"10.1109/TSP.2017.8076016","DOIUrl":"https://doi.org/10.1109/TSP.2017.8076016","url":null,"abstract":"Medical Body Area Network (MBAN), recently released by the Federal Communications Commission (FCC), is a narrowband body area network (NB-BAN) specialized for medical applications. Its allocated band of frequency is from 2360–2400 MHz. This paper studies the effect of transmitter and receiver node positions on the bit-error-rate (BER) performance and maximum allowable data throughput of the on-body scenario of the 2360–2390 MHz band assuming standing body activity. In This case we consider two receiver node positions namely, the right hip and chest with various transmitter node positions. Numerical results show that the achieved bit to noise energy ratio ranges from 11–12 dB for the right hip receiver node (first scenario), and from 10.3–17.1 dB for the chest receiver node (second scenario) depending on the position of transmitter node. The achieved data throughputs are 171.949–216.47 Mbps for the first scenario, and 53.137–254.33 Mbps for the second scenario, also depending on the transmitter node position. Both scenarios show that the achieved bit to noise energy ratio varies for only 7 dBs among the different node positions, which is a relatively small range compared to other BAN bands like the ultra-wideband (UWB). The latter has a variation on ≈20 dBs for the bit to noise energy ratio depending on the transmitter and receiver node positions.","PeriodicalId":256818,"journal":{"name":"2017 40th International Conference on Telecommunications and Signal Processing (TSP)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116350893","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":"Low cost intelligent notification and alarming system for ambient assisted living applications","authors":"N. Zaric, M. Pejanovic","doi":"10.1109/TSP.2017.8075982","DOIUrl":"https://doi.org/10.1109/TSP.2017.8075982","url":null,"abstract":"In this paper we will propose a solution for home setup of sensors and actuators that are required for appropriate functioning of any Ambient Assisted Living application. The proposed installation solution is low cost, easy to install, modular and reliable. Detailed analysis of sensor states is performed as well as analysis of different in home scenarios. Additionally an algorithm for Intelligent Notification and Alarming System for analysing data acquired from the sensors is proposed as well. The presented system may represent a good starting point for further elaboration and exploitation.","PeriodicalId":256818,"journal":{"name":"2017 40th International Conference on Telecommunications and Signal Processing (TSP)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125254601","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}
Faraz Bhatti, Thomas Greiner, M. Heizmann, Mathias Ziebarth
{"title":"A new FPGA based architecture to improve performance of deflectometry image processing algorithm","authors":"Faraz Bhatti, Thomas Greiner, M. Heizmann, Mathias Ziebarth","doi":"10.1109/TSP.2017.8076049","DOIUrl":"https://doi.org/10.1109/TSP.2017.8076049","url":null,"abstract":"Image processing has gained its popularity over the recent years in areas, such as computer vision, artificial intelligence and automation. Deflectometry image processing technique is developed to inspect defects on reflecting surfaces. FPGA offers flexibility by employing reconfigurability, and furthermore, provides parallelization and pipelining to improve latency and execution time. The performance gain of deflectometry image processing algorithm in terms of execution times can be achieved by using an architecture based on FPGA, as proposed in this paper. The results show the correlation between performance and resource consumption. The simulation results are calculated and arranged in form of comparison between software and hardware implementation, using proposed architecture. Moreover, for the rapid prototyping purpose, Xilinx High Level Synthesis (HLS) tool is selected in the development methodology to realize the proposed design.","PeriodicalId":256818,"journal":{"name":"2017 40th International Conference on Telecommunications and Signal Processing (TSP)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124417861","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":"On the design of MOS-only complex filter","authors":"H. A. Yildiz, O. Aydin, A. Toker, S. Özoguz","doi":"10.1109/TSP.2017.8075990","DOIUrl":"https://doi.org/10.1109/TSP.2017.8075990","url":null,"abstract":"In this paper, a new area-effective complex-filter topology which can be used as an image-reject filter in low-IF receiver is proposed. A first-order image-reject filter obtained according to a new topology which corresponds to a complex shunt RC circuit. To demonstrate the usefulness of filter, simulation results of the filter are obtained by using SPECTRE in the CADENCE design tool.","PeriodicalId":256818,"journal":{"name":"2017 40th International Conference on Telecommunications and Signal Processing (TSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129121664","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}
G. Tsirimokou, R. Sotner, J. Jerabek, J. Koton, C. Psychalinos
{"title":"Programmable analog array of fractional-order filters with CFOAs","authors":"G. Tsirimokou, R. Sotner, J. Jerabek, J. Koton, C. Psychalinos","doi":"10.1109/TSP.2017.8076079","DOIUrl":"https://doi.org/10.1109/TSP.2017.8076079","url":null,"abstract":"A novel Programmable Analog Array of fractional-order filters is proposed in this paper. It is constructed from an active core which is implemented using Current Feedback Operational Amplifiers as active elements. The scheme offers the realization of lowpass, highpass, bandpass, and bandstop fractional-order filter functions of various orders, and this is achieved through the utilization of resistor and capacitor banks as well as a 4-to-16 decoder. The behavior of the proposed array has been evaluated using the OrCad PSpice simulator, while the AD844 discrete-component ICs have been employed as Current Feedback Operational Amplifiers.","PeriodicalId":256818,"journal":{"name":"2017 40th International Conference on Telecommunications and Signal Processing (TSP)","volume":"354 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132653644","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 multiresolution approach to the extraction of the pyloric rhythm","authors":"Filipa dos Santos, Péter András, K. Lam","doi":"10.1109/TSP.2017.8076015","DOIUrl":"https://doi.org/10.1109/TSP.2017.8076015","url":null,"abstract":"This paper describes our work toward the development of a computationally robust methodology to identify the pyloric neurons in the stomatogastric ganglion of Cancer pagurus using voltage-sensitive dye imaging. The multi-resolution signal decomposition procedure constructed using the sequential Singular Spectrum Analysis approach to isolate the pyloric rhythm from optical recordings of dyed live cells is presented. Early results suggest that the developed procedure offers a demonstrably reliable way to extract the rhythm from the recording data of these cells.","PeriodicalId":256818,"journal":{"name":"2017 40th International Conference on Telecommunications and Signal Processing (TSP)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130700010","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 EEG based BCI signals imagined hand closing and opening","authors":"E. Yavuz, O. Aydemir","doi":"10.1109/TSP.2017.8076020","DOIUrl":"https://doi.org/10.1109/TSP.2017.8076020","url":null,"abstract":"Brain-computer interfaces allow people to manage electronic devices such as computers without using their motor nervous system. When the brain is in a function, nerve cells in the brain communicate with each other with electrochemical interactions. Electroencephalogram (EEG) signals are recorded with the aid of electrodes during this function of the brain. These signals enable interaction between people and electronic devices. This interaction forms the basis of brain computer interface (BCI) systems which facilitates lives of paralyzed patients who do not have any problems with their cognitive functioning. Therefore, for high-performance BCI systems, pre-processing technique and classification method applied to these signals and features extracted from these signals are crucial. In this study, we studied a new EEG data set recorded from 29 people during imagination of hand opening/closing movement. While moving-average filter was used a pre-processing technique, the features were extracted by Hilbert Transform and Mean Derivative. Afterwards, extracted features were classified by k-nearest neighbor method. Average classification accuracy (CA) with preprocessing was achieved 82.23%, which was 12.78% higher than the average CA obtained by unprocessed EEG data set and 16.63% greater than the previous works reported in the literature. The achieved results showed that the proposed method has a great potential to be applied general with a high-performance in general.","PeriodicalId":256818,"journal":{"name":"2017 40th International Conference on Telecommunications and Signal Processing (TSP)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134251790","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}