{"title":"Human-centered favorite music estimation: EEG-based extraction of audio features reflecting individual preference","authors":"Ryosuke Sawata, Takahiro Ogawa, M. Haseyama","doi":"10.1109/ICDSP.2015.7251990","DOIUrl":"https://doi.org/10.1109/ICDSP.2015.7251990","url":null,"abstract":"This paper presents a human-centered method for favorite music estimation using EEG-based audio features. In order to estimate user's favorite musical pieces, our method utilizes his/her EEG signals for calculating new audio features suitable for representing the user's music preference. Specifically, projection, which transforms original audio features into the features reflecting the preference, is calculated by applying kernel Canonical Correlation Analysis (CCA) to the audio features and the EEG features which are extracted from the user's EEG signals during listening to favorite musical pieces. By using the obtained projection, the new EEG-based audio features can be derived since this projection provides the best correlation between the user's EEG signals and their corresponding audio signals. Thus, successful estimation of user's favorite musical pieces via a Support Vector Machine (SVM) classifier using the new audio features becomes feasible. Since our method does not need acquisition of EEG signals for obtaining new audio features from new musical pieces after calculating the projection, this indicates the high practicability of our method. Experimental results show that our method outperforms methods using original audio features or EEG features.","PeriodicalId":216293,"journal":{"name":"2015 IEEE International Conference on Digital Signal Processing (DSP)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116185670","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":"2-D DOA estimation with virtual sensors","authors":"Yongzhi Liu, Zhiping Lin","doi":"10.1109/ICDSP.2015.7252018","DOIUrl":"https://doi.org/10.1109/ICDSP.2015.7252018","url":null,"abstract":"Spectrum resolution of the array is limited by the array aperture. However, in practice the system cost is proportional to the number of sensors. In this paper, we extend the one-dimensional (1-D) extrapolation method to estimate Direction of Arrival (DOA) using a planar array with virtual sensors. Assuming the spatial and spectrum samples satisfy Gaussian and Cauchy distribution, respectively, the precision of DOA estimation is improved within a few iterations.","PeriodicalId":216293,"journal":{"name":"2015 IEEE International Conference on Digital Signal Processing (DSP)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122110196","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}
Qianru Jiang, Zeru Lu, Sheng Li, Gang Li, Huang Bai, Tao Hong
{"title":"A new framework based on sparse representation applied to monitor video","authors":"Qianru Jiang, Zeru Lu, Sheng Li, Gang Li, Huang Bai, Tao Hong","doi":"10.1109/ICDSP.2015.7252039","DOIUrl":"https://doi.org/10.1109/ICDSP.2015.7252039","url":null,"abstract":"A new framework is proposed for compressed sensing (CS) video application, in which the dictionary can be trained based on traditional dictionary algorithms to unify computational complexity and reconstruction accuracy. In the new framework, a forgetting factor is employed for adjacent frames such that the trade off between the complexity and the performance can be considered. Simulation results show that the proposed framework achieves a better performance than traditional approaches.","PeriodicalId":216293,"journal":{"name":"2015 IEEE International Conference on Digital Signal Processing (DSP)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122184578","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":"Root cause localization on power networks","authors":"Zhen Chen, Kai Zhu, Lei Ying","doi":"10.1109/ICDSP.2015.7251975","DOIUrl":"https://doi.org/10.1109/ICDSP.2015.7251975","url":null,"abstract":"Given information about cascading failures on a power network, localization of the root cause is of great importance in accelerating the process of recovering the power network from cascading failures. In order to locate the root cause, we need to answer two questions: (1) Which information can we use to locate the root cause of cascading failures? (2) What algorithm can locate the root cause effectively? In this paper, we present our recent results towards answering these two questions. In particular, we developed a root-cause localization algorithm by exploiting the concept of correlation network, which can describe the diffusion. The simulations based on different power networks are provided, in which we show our algorithm outperforms some other existing algorithms.","PeriodicalId":216293,"journal":{"name":"2015 IEEE International Conference on Digital Signal Processing (DSP)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124664848","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":"An image super resolution reconstruction algorithm based on Undecimated Morphological Wavelet","authors":"Wei Liu, Yongsheng Liang, Zeng-Bin Chen, Jihong Zhang","doi":"10.1109/ICDSP.2015.7251944","DOIUrl":"https://doi.org/10.1109/ICDSP.2015.7251944","url":null,"abstract":"The paper proposes an image super resolution reconstruction (SRR) algorithm based on Undecimated Morphological Wavelet (UMW). As UMW can maintain more gradient information and eliminate more artificial blocks, it is used to decompose low resolution (LR) images. High frequency coefficients from the decomposition contain the gradients that reflect the horizontal, vertical, and diagonal domain information. Then both the low frequency and high frequency coefficients are interpolated to produce an extended group of coefficient sequence. Finally, the extended coefficients are fused and using inverse transformation to produce a super resolution image. Experimental results show that that the proposed algorithm have good performance in the image reconstruction quality and the computational efficiency.","PeriodicalId":216293,"journal":{"name":"2015 IEEE International Conference on Digital Signal Processing (DSP)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127212297","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}
Lei Tan, Huiting Fan, Yawei Jia, Weikang Rui, Jing Guo, Qing Wang
{"title":"Streaming media transmission system based on crowd participatory network oriented by remote medical","authors":"Lei Tan, Huiting Fan, Yawei Jia, Weikang Rui, Jing Guo, Qing Wang","doi":"10.1109/ICDSP.2015.7251332","DOIUrl":"https://doi.org/10.1109/ICDSP.2015.7251332","url":null,"abstract":"The existing streaming media transmission of remote medical system needs a proprietary network and equipment support. As a result, it cannot be widely applied. This article proposes a crowd and participatory network based remote medical system which can be applied on traditional network. With the support of the topological characteristics of the systems social network, we build the crowd and participatory network model in which the nodes can collaborate unconsciously. Based on this communication model, we design and implement a distributed remote medical system, which doesnt need the support of proprietary network equipment. Our method provides a new idea to build remote medical system. The experiments showed that our system can effectively increase the average data transfer rate under the traditional network environment.","PeriodicalId":216293,"journal":{"name":"2015 IEEE International Conference on Digital Signal Processing (DSP)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129301024","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":"An efficient FIR filtering technique for processing non-uniformly sampled signal","authors":"W. Ye, Y. Yu","doi":"10.1109/ICDSP.2015.7251855","DOIUrl":"https://doi.org/10.1109/ICDSP.2015.7251855","url":null,"abstract":"The classic digital signal processing based on shannon sampling theory uniformly samples signals without making use of their intrinsic properties. Researches have proved that level-crossing sampling scheme sampling the signals in a non-uniform way by an asynchronous analog-to-digital converter (AADC) may lead to lower power consumption. In this paper, a new finite impulse response (FIR) filtering technique aiming to process the non-uniform sampled data and the corresponding system architecture are proposed. The design example shows that the computation complexity of the proposed one is lower than that of the existing non-uniform FIR filtering technique.","PeriodicalId":216293,"journal":{"name":"2015 IEEE International Conference on Digital Signal Processing (DSP)","volume":"41 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130749863","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-power and high-performance design of OpenGL ES 2.0 graphics processing unit for mobile applications","authors":"Shen-Fu Hsiao, Shun-Jie Li, K. Tsao","doi":"10.1109/ICDSP.2015.7251840","DOIUrl":"https://doi.org/10.1109/ICDSP.2015.7251840","url":null,"abstract":"Low-Power High-Speed graphics processing unit (GPU) is one of the key hardware components in modern mobile devices such as smart phones. This paper presents several methods to improve the execution performance and reduce the power of a previously designed programmable GPU for OpenGL ES 2.0 specification. The GPU has a vectored and single-instruction-multiple-data (SIMD) architecture that can execute a maximum of four concurrent scalar operations, and supports the functions of swizzle and write mask. Besides, a special function unit (SFU) is included in the GPU to compute complicate arithmetic functions such as reciprocal square-root, logarithm and exponential. As per performance improvements, hazard control and data forwarding mechanism are added in the GPU architecture to reduce the stalls caused by data dependency. Furthermore, the execution pipeline is re-designed so that the number of execution pipeline stages is reduced with more balanced delay in each stage. For power reduction, this paper presents several methods that disenable unused execution and/or memory units. The memory units are also partitioned into several banks so that only a small portion of memory is active during memory access. According to the experimental results, the new GPU designs have significant improvement in performance and power compared with the prior design.","PeriodicalId":216293,"journal":{"name":"2015 IEEE International Conference on Digital Signal Processing (DSP)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126759282","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":"FPGA implementation of Shaped Offset QPSK modulator","authors":"D. Rieth, C. Heller, G. Ascheid","doi":"10.1109/ICDSP.2015.7251984","DOIUrl":"https://doi.org/10.1109/ICDSP.2015.7251984","url":null,"abstract":"This paper presents a novel architecture for the modulation scheme Shaped Offset QPSK (SOQPSK), which belongs to the class of Continuous Phase Modulations (CPMs). These waveforms have recently regained remarkable popularity, due to the increasing demand of highly energy and spectral efficient communication systems for deep-space, telemetry and Unmanned Aerial Vehicle (UAV) links, for example. To the best of the authors' knowledge, this is the first SOQPSK modulator architecture and implementation reported in literature. The modulation task itself is divided into a SOQPSK-specific precoding part, with minimal hardware complexity, as well as an optimized quadrature CPM modulator. With a proof-of-concept FPGA implementation, the feasibility of the proposed architecture is shown together with its close to optimal algorithmic performance.","PeriodicalId":216293,"journal":{"name":"2015 IEEE International Conference on Digital Signal Processing (DSP)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121478634","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}
Theerasak Chanwimalueang, W. V. Rosenberg, D. Mandic
{"title":"Enabling R-peak detection in wearable ECG: Combining matched filtering and Hilbert transform","authors":"Theerasak Chanwimalueang, W. V. Rosenberg, D. Mandic","doi":"10.1109/ICDSP.2015.7251845","DOIUrl":"https://doi.org/10.1109/ICDSP.2015.7251845","url":null,"abstract":"Precise detection of R-peaks is a prerequisite in real-world ECG applications - this is particularly critical for wearable ECG where sensors are typically low resolution and embedded. Such recorded ECG data are typically contaminated by noise, motion artefacts, unbalanced skin-electrode impedance and other physiological signals. These affect the quality of R-peak detection and can consequently lead to failure in the evaluation of physiological functions or a misinterpretation of the state of the body, such as in monitoring stress. While numerous methods for R-peak detection are available for stationary and comparably noise-free ECG, robust DSP software for wearable devices is still emerging. To this end, a new approach which combines matched filtering and Hilbert transform is proposed. The RR-intervals and cross-correlation are used in conjunction to not only automatically locate the R-peaks but also to display the candidate ambiguous peaks via an interactive graphical user interface. The performance of the proposed approach is compared to the well-known Pan-Tompkins algorithm and is evaluated for two types of ECG databases: standard stationary data and low-SNR ECG data obtained from wearable ECG. The proposed method results in a distinctly higher positive predictivity and leads to more satisfying overall outcomes, especially for the critical call of low-SNR data.","PeriodicalId":216293,"journal":{"name":"2015 IEEE International Conference on Digital Signal Processing (DSP)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122953858","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}