Pub Date : 2019-07-01DOI: 10.1109/TSP.2019.8769054
V. Oujezský, T. Horváth, Michal Jurcik, V. Skorpil, M. Holik, Marek Kvás
This article is a summary of our participation in a project focused on the development of a programmable FPGA network card for gigabit-capable passive optical networks. The network card is constructed to analyze GPON frames and check the correctness of communication between an optical line terminator and an optical network unit directly in the optical domain. The GPON networks use a specific encapsulation method for Ethernet frames and control messages. Because of the network card operates directly in the optical domain, it is possible to provide real-time analysis of headers of GPON transmission convergence layer. Within this article, a basic schema and functionality of the FPGA network card are described, and proposals for the continuous research and development are presented at the end.
{"title":"Fpga Network Card And System For Gpon Frames Analysis At Optical Layer","authors":"V. Oujezský, T. Horváth, Michal Jurcik, V. Skorpil, M. Holik, Marek Kvás","doi":"10.1109/TSP.2019.8769054","DOIUrl":"https://doi.org/10.1109/TSP.2019.8769054","url":null,"abstract":"This article is a summary of our participation in a project focused on the development of a programmable FPGA network card for gigabit-capable passive optical networks. The network card is constructed to analyze GPON frames and check the correctness of communication between an optical line terminator and an optical network unit directly in the optical domain. The GPON networks use a specific encapsulation method for Ethernet frames and control messages. Because of the network card operates directly in the optical domain, it is possible to provide real-time analysis of headers of GPON transmission convergence layer. Within this article, a basic schema and functionality of the FPGA network card are described, and proposals for the continuous research and development are presented at the end.","PeriodicalId":399087,"journal":{"name":"2019 42nd International Conference on Telecommunications and Signal Processing (TSP)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132111755","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 : 2019-07-01DOI: 10.1109/TSP.2019.8768847
S. Srivastava, Astha Singh, Anjali Yadav, M. Dutta, K. Říha, Jan Dorazil
In Diabetic Retinopathy, red lesions are consisting of micro-aneurysms and haemorrhages. The paper deals with the proper detection of micro-aneurysms and haemorrhages which are found in fundus images using an automated computer vision. Morphological operations are performed to extract out all the possible candidates that have similar pixel intensity as that of the red lesions. To reject the blood vessels effectively, Gabor filter is used in this paper. Discriminatory features are extracted and fed to train SVM classifier for the proper classification of the micro-aneurysms and haemorrhages. The algorithm developed is tested on 168 fundus images taken from DIARETDBI AND MESSIDOR databases. It achieved an overall accuracy of 93% and 91.8% in classifying the micro-aneurysms and haemorrhage respectively. Proposed work is efficient and the result are encouraging to use in real time applications.
{"title":"Automatic Extraction of Micro-aneurysms and Haemorrhages from Digital Fundus Image","authors":"S. Srivastava, Astha Singh, Anjali Yadav, M. Dutta, K. Říha, Jan Dorazil","doi":"10.1109/TSP.2019.8768847","DOIUrl":"https://doi.org/10.1109/TSP.2019.8768847","url":null,"abstract":"In Diabetic Retinopathy, red lesions are consisting of micro-aneurysms and haemorrhages. The paper deals with the proper detection of micro-aneurysms and haemorrhages which are found in fundus images using an automated computer vision. Morphological operations are performed to extract out all the possible candidates that have similar pixel intensity as that of the red lesions. To reject the blood vessels effectively, Gabor filter is used in this paper. Discriminatory features are extracted and fed to train SVM classifier for the proper classification of the micro-aneurysms and haemorrhages. The algorithm developed is tested on 168 fundus images taken from DIARETDBI AND MESSIDOR databases. It achieved an overall accuracy of 93% and 91.8% in classifying the micro-aneurysms and haemorrhage respectively. Proposed work is efficient and the result are encouraging to use in real time applications.","PeriodicalId":399087,"journal":{"name":"2019 42nd International Conference on Telecommunications and Signal Processing (TSP)","volume":"1986 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130517836","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 : 2019-07-01DOI: 10.1109/TSP.2019.8769104
A. Kartci, N. Herencsar, Jan Dvorak, K. Vrba
This paper deals with a voltage-mode integer- and fractional-order oscillator design providing compact and simple CMOS structure. The proposed circuit consists of only one grounded /floating capacitor, one grounded /floating resistor, and one high-performance and versatile active element so-called voltage differencing inverting buffered amplifier (VDIBA), employing only six transistors. Compared with the corresponding already introduced fractional-order oscillators, it offers the benefit of low transistor count. In addition, it offers the well-known advantages of fractional-order oscillators about the capability for achieving very low and high oscillation frequencies with reasonable component values. The design parameters of the proposed oscillator can be electronically adjusted via change of order of the fractional-order capacitor and/or by means of bias current of the internal transconductance of the VDIBA. Theoretical results are verified by SPICE simulations using TSMC 0.18 $mu$m leve1-7 LO EPI SCNOIS CMOS process parameters with pm 0.9V supply voltages.
{"title":"VDIBA-Based Fractional-Order Oscillator Design","authors":"A. Kartci, N. Herencsar, Jan Dvorak, K. Vrba","doi":"10.1109/TSP.2019.8769104","DOIUrl":"https://doi.org/10.1109/TSP.2019.8769104","url":null,"abstract":"This paper deals with a voltage-mode integer- and fractional-order oscillator design providing compact and simple CMOS structure. The proposed circuit consists of only one grounded /floating capacitor, one grounded /floating resistor, and one high-performance and versatile active element so-called voltage differencing inverting buffered amplifier (VDIBA), employing only six transistors. Compared with the corresponding already introduced fractional-order oscillators, it offers the benefit of low transistor count. In addition, it offers the well-known advantages of fractional-order oscillators about the capability for achieving very low and high oscillation frequencies with reasonable component values. The design parameters of the proposed oscillator can be electronically adjusted via change of order of the fractional-order capacitor and/or by means of bias current of the internal transconductance of the VDIBA. Theoretical results are verified by SPICE simulations using TSMC 0.18 $mu$m leve1-7 LO EPI SCNOIS CMOS process parameters with pm 0.9V supply voltages.","PeriodicalId":399087,"journal":{"name":"2019 42nd International Conference on Telecommunications and Signal Processing (TSP)","volume":"27 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116215211","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 : 2019-07-01DOI: 10.1109/TSP.2019.8768836
J. Borkowski, A. Matusiak
A new method of frequency tracking for a real-valued sine wave is examined in this paper. The main advantage of the algorithm is that it is developed taking into account the conjugate component so only a short interval is required to accurately estimate the frequency. Additional distortion is canceled by considering the impact of other shifted-away complex exponentials. Together with the described method, the generalized maximum sidelobes decay windows are introduced providing vast flexibility for customizing the method. The use of discrete Fourier transform points and the form of straight-forward analytical expression guarantees fast execution time. This makes the algorithm especially suitable for all real-time system applications that require fast response times and well-defined dynamic behavior. The method is evaluated in terms of its characteristics with computer simulations. Also, the experimental results from real-time implementation on a signal processor and its computational cost are presented.
{"title":"Frequency tracking with novel Interpolated-DFT-based method using Generalized Maximum Sidelobes Decay Windows","authors":"J. Borkowski, A. Matusiak","doi":"10.1109/TSP.2019.8768836","DOIUrl":"https://doi.org/10.1109/TSP.2019.8768836","url":null,"abstract":"A new method of frequency tracking for a real-valued sine wave is examined in this paper. The main advantage of the algorithm is that it is developed taking into account the conjugate component so only a short interval is required to accurately estimate the frequency. Additional distortion is canceled by considering the impact of other shifted-away complex exponentials. Together with the described method, the generalized maximum sidelobes decay windows are introduced providing vast flexibility for customizing the method. The use of discrete Fourier transform points and the form of straight-forward analytical expression guarantees fast execution time. This makes the algorithm especially suitable for all real-time system applications that require fast response times and well-defined dynamic behavior. The method is evaluated in terms of its characteristics with computer simulations. Also, the experimental results from real-time implementation on a signal processor and its computational cost are presented.","PeriodicalId":399087,"journal":{"name":"2019 42nd International Conference on Telecommunications and Signal Processing (TSP)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121750926","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 : 2019-07-01DOI: 10.1109/TSP.2019.8769097
Kamal Lamichhane, Pramit Mazumdar
Image processing techniques may be used for enhancing edges, boundaries, contrast, etc. of an image through accentuation or sharpening process. Many algorithms are available to normalize illumination impact for different image processing applications. In this contribution, we conduct a comparative study on four different types of illumination normalization algorithms. They are based on discrete wavelet, logarithmic total variation with primal dual algorithm, histogram equalization technique, and morphological operation. In order to obtain better enhancement of image by using discrete wavelet based illumination normalization algorithm, selection of the particular wavelet is very important. Use of histogram equalization function in image preprocessing with other algorithms enhances the overall performance of face detection. This paper illustrates performance of different illumination normalization algorithms in Viola-Jones face detection system based on the extended Yale B database.
{"title":"Design of Symlet Wavelet based Illumination Normalization Algorithm and its Comparison with other Relevant Algorithms","authors":"Kamal Lamichhane, Pramit Mazumdar","doi":"10.1109/TSP.2019.8769097","DOIUrl":"https://doi.org/10.1109/TSP.2019.8769097","url":null,"abstract":"Image processing techniques may be used for enhancing edges, boundaries, contrast, etc. of an image through accentuation or sharpening process. Many algorithms are available to normalize illumination impact for different image processing applications. In this contribution, we conduct a comparative study on four different types of illumination normalization algorithms. They are based on discrete wavelet, logarithmic total variation with primal dual algorithm, histogram equalization technique, and morphological operation. In order to obtain better enhancement of image by using discrete wavelet based illumination normalization algorithm, selection of the particular wavelet is very important. Use of histogram equalization function in image preprocessing with other algorithms enhances the overall performance of face detection. This paper illustrates performance of different illumination normalization algorithms in Viola-Jones face detection system based on the extended Yale B database.","PeriodicalId":399087,"journal":{"name":"2019 42nd International Conference on Telecommunications and Signal Processing (TSP)","volume":"58 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126010989","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 : 2019-07-01DOI: 10.1109/TSP.2019.8769053
A. Manolova, N. Neshov, Krasimir Tonchev, P. Koleva, V. Poulkov
Nowadays, the way people see the world and interact between each other is changing; new technologies are paving the way of innovative solutions for communication between humans. The recent research work on relevant topics and the rapid development of powerful hardware and software implementations allow for building of new communications pathways for lifelike interaction between people in different locations called human bond communication. One very new technology may offer the practical application of human bond communication is holoportation, but it also presents a lot of challenges in terms of digital data gathering and transmission. By combining appropriate technics, we propose an approach for holoportation combined with haptic technology between same controlled environments. We present a conceptual model of holoportation architecture for real time communication based on highly accurate 3D modelling of the human face and body, recognition and prediction of human actions and facial expressions to achieve realistic communications. Designed this way the proposed conceptual model of the holoportation system addresses the challenges from the information transmission aspect where real time constraints and narrowband channels are imposed, while big amounts of data, such as 3D body models of humans need to be transmitted.
{"title":"Challenges for real time long distance holoportation to enable human bond communication","authors":"A. Manolova, N. Neshov, Krasimir Tonchev, P. Koleva, V. Poulkov","doi":"10.1109/TSP.2019.8769053","DOIUrl":"https://doi.org/10.1109/TSP.2019.8769053","url":null,"abstract":"Nowadays, the way people see the world and interact between each other is changing; new technologies are paving the way of innovative solutions for communication between humans. The recent research work on relevant topics and the rapid development of powerful hardware and software implementations allow for building of new communications pathways for lifelike interaction between people in different locations called human bond communication. One very new technology may offer the practical application of human bond communication is holoportation, but it also presents a lot of challenges in terms of digital data gathering and transmission. By combining appropriate technics, we propose an approach for holoportation combined with haptic technology between same controlled environments. We present a conceptual model of holoportation architecture for real time communication based on highly accurate 3D modelling of the human face and body, recognition and prediction of human actions and facial expressions to achieve realistic communications. Designed this way the proposed conceptual model of the holoportation system addresses the challenges from the information transmission aspect where real time constraints and narrowband channels are imposed, while big amounts of data, such as 3D body models of humans need to be transmitted.","PeriodicalId":399087,"journal":{"name":"2019 42nd International Conference on Telecommunications and Signal Processing (TSP)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123464136","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 : 2019-07-01DOI: 10.1109/TSP.2019.8769085
S. Gorbunov, A. Rashich
The paper addresses the BER performance of non-orthogonal multicarrier (SEFDM, Spectrally Efficient Frequency Division Multiplexing) signals in LTE fading channels in systems with multiple receiver antennas. The receiver structures, based on sphere decoder and Maximal Ratio Combining (MRC) were used. The BER performance of SEFDM in typical LTE fading channels using the proposed reception scheme is comparable with performance of QPSK OFDM with the same number of subcarriers.
{"title":"Spatial receive diversity for SEFDM based system","authors":"S. Gorbunov, A. Rashich","doi":"10.1109/TSP.2019.8769085","DOIUrl":"https://doi.org/10.1109/TSP.2019.8769085","url":null,"abstract":"The paper addresses the BER performance of non-orthogonal multicarrier (SEFDM, Spectrally Efficient Frequency Division Multiplexing) signals in LTE fading channels in systems with multiple receiver antennas. The receiver structures, based on sphere decoder and Maximal Ratio Combining (MRC) were used. The BER performance of SEFDM in typical LTE fading channels using the proposed reception scheme is comparable with performance of QPSK OFDM with the same number of subcarriers.","PeriodicalId":399087,"journal":{"name":"2019 42nd International Conference on Telecommunications and Signal Processing (TSP)","volume":"95 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123745918","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 : 2019-07-01DOI: 10.1109/TSP.2019.8768894
Arpit Gupta, A. Kaur, M. Dutta, J. Schimmel
This paper proposes an audio watermarking algorithm having good balance between perceptual transparency, robustness, and payload. The proposed algorithm is based on Cordic QR decomposition and multi-resolution decomposition meeting all the necessary audio watermarking design requirements. The use of Cordic QR decomposition provides good robustness and use of detailed coefficients of multi-resolution decomposition help to obtain good transparency at high payload. Also, the proposed algorithm does not require original signal or the embedded watermark for extraction. The binary data embedding capacity of the proposed algorithm is 960.4 bps and the highest SNR obtained is 35.1380 dB. The results obtained in this paper show that the proposed method has good perceptual transparency, high payload and robustness under various audio signal processing attacks.
{"title":"Perceptually Transparent & Robust Audio Watermarking Algorithm Using Multi Resolution Decomposition & Cordic QR Decomposition","authors":"Arpit Gupta, A. Kaur, M. Dutta, J. Schimmel","doi":"10.1109/TSP.2019.8768894","DOIUrl":"https://doi.org/10.1109/TSP.2019.8768894","url":null,"abstract":"This paper proposes an audio watermarking algorithm having good balance between perceptual transparency, robustness, and payload. The proposed algorithm is based on Cordic QR decomposition and multi-resolution decomposition meeting all the necessary audio watermarking design requirements. The use of Cordic QR decomposition provides good robustness and use of detailed coefficients of multi-resolution decomposition help to obtain good transparency at high payload. Also, the proposed algorithm does not require original signal or the embedded watermark for extraction. The binary data embedding capacity of the proposed algorithm is 960.4 bps and the highest SNR obtained is 35.1380 dB. The results obtained in this paper show that the proposed method has good perceptual transparency, high payload and robustness under various audio signal processing attacks.","PeriodicalId":399087,"journal":{"name":"2019 42nd International Conference on Telecommunications and Signal Processing (TSP)","volume":"382 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121770536","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 : 2019-07-01DOI: 10.1109/TSP.2019.8769076
Ioan Domuta, T. Palade
In many circumstances, it is preferred to simultaneously use a recursive Discrete Fourier Transform (DFT) and the zero padding, the former for its computational efficiency, the latter for the interpolation in the frequency domain. In the present article, we develop a new sliding DFT algorithm, which performs recursive spectral estimation of zero-padded time series. In order to ensure the stability of the process, we selected the estimator with guaranteed stability through the damping factor. Error analysis shows that the damping factor produces systematic errors and the errors in question are dependent upon the phase of the input signal.
{"title":"Sliding DFT and Zero Padding","authors":"Ioan Domuta, T. Palade","doi":"10.1109/TSP.2019.8769076","DOIUrl":"https://doi.org/10.1109/TSP.2019.8769076","url":null,"abstract":"In many circumstances, it is preferred to simultaneously use a recursive Discrete Fourier Transform (DFT) and the zero padding, the former for its computational efficiency, the latter for the interpolation in the frequency domain. In the present article, we develop a new sliding DFT algorithm, which performs recursive spectral estimation of zero-padded time series. In order to ensure the stability of the process, we selected the estimator with guaranteed stability through the damping factor. Error analysis shows that the damping factor produces systematic errors and the errors in question are dependent upon the phase of the input signal.","PeriodicalId":399087,"journal":{"name":"2019 42nd International Conference on Telecommunications and Signal Processing (TSP)","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121975052","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 : 2019-07-01DOI: 10.1109/tsp.2019.8768865
{"title":"TSP 2019 Preface","authors":"","doi":"10.1109/tsp.2019.8768865","DOIUrl":"https://doi.org/10.1109/tsp.2019.8768865","url":null,"abstract":"","PeriodicalId":399087,"journal":{"name":"2019 42nd International Conference on Telecommunications and Signal Processing (TSP)","volume":"248 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124736754","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：