2014 19th International Conference on Digital Signal Processing最新文献_第9页

A new sifting method based on inflection point 一种新的基于拐点的筛选方法

2014 19th International Conference on Digital Signal Processing Pub Date : 2014-09-18 DOI: 10.1109/ICDSP.2014.6900834

Hong Hong, Heng Zhao, Yusheng Li, Chen Gu, Xiaohua Zhu

引用次数: 1

Event boundary determination based on attack-defense transition analysis in soccer video 基于足球视频攻防转换分析的事件边界确定

2014 19th International Conference on Digital Signal Processing Pub Date : 2014-09-18 DOI: 10.1109/ICDSP.2014.6900680

Zengkai Wang, Junqing Yu, Yunfeng He, T. Guan, Jiufei Tang

{"title":"Event boundary determination based on attack-defense transition analysis in soccer video","authors":"Zengkai Wang, Junqing Yu, Yunfeng He, T. Guan, Jiufei Tang","doi":"10.1109/ICDSP.2014.6900680","DOIUrl":"https://doi.org/10.1109/ICDSP.2014.6900680","url":null,"abstract":"Event detection is the key technology of content based sports video retrieval. Accurate detecting the boundaries of video events can effectively improve the user experience, and reduce the cost of video transmission. However, many existing works mainly focused on how to find the event, fewer on the determination of event boundary. In this work, we proposed an approach to determine the event boundary based on attack-defense transition analysis (ADTA) in soccer video. The main contributions of our work are as follows. A histogram based kickoff circle detection algorithm is proposed to facilitate the field zones partition. The proposed algorithm is fast and robust comparing with the existing methods. By the extracted mid-level features, the soccer playfield is divided into different zones, which imply different semantics in soccer game. Furthermore, the far view shot is segmented into sub-shots with captured zones, which benefit the highlight event and event boundary detection. The highlight events boundaries are accurately determined by attack-defense change points (ADCPs) detection combined with affection arousal curve. Experimental results demonstrated the effectiveness of the proposed approach.","PeriodicalId":301856,"journal":{"name":"2014 19th International Conference on Digital Signal Processing","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128320165","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}

引用次数: 1

Trial-to-trial latency variability of somatosensory evoked potential in early stage of cervical myelopathy 颈椎病早期体感觉诱发电位的潜伏期变异性

2014 19th International Conference on Digital Signal Processing Pub Date : 2014-09-18 DOI: 10.1109/ICDSP.2014.6900759

H. Cui, Yazhou Wang, Xiaobo Xie, Shengpu Xu, Yong Hu

{"title":"Trial-to-trial latency variability of somatosensory evoked potential in early stage of cervical myelopathy","authors":"H. Cui, Yazhou Wang, Xiaobo Xie, Shengpu Xu, Yong Hu","doi":"10.1109/ICDSP.2014.6900759","DOIUrl":"https://doi.org/10.1109/ICDSP.2014.6900759","url":null,"abstract":"Somatosensory evoked potentials (SEP) have been widely used in monitoring spinal cord function during surgery. However, its clinical diagnostic value was limited because of big test-retest variability in SEP measurement. This study applied constrained second order based blind source separation (CSOB-BSS) algorithm to extract single trial SEP. This novel method provides a new measurement of trial-to trial latency variability (TTLV) of SEP. Ten healthy subjects and ten patients with cervical myelopathy (CM) at early stage were recruited in this study. Latency in averaging SEP did not show significant difference between healthy and CM. However, median SEP showed significant lower TTLV (4.9±1.6%) in healthy subjects in comparison with TTLV (10.8±1.0%) in CM (p<;0.05). To investigate the meaningful interpretation of TTLV, clinical measures of disease severity including modified Japanese Orthopaedic Association (mJOA) and transverse area ratio between spinal cord to canal in MRI were performed in CM patients. There is no correlation among TTLV, mJOA and MRI measurement. Results suggested the diagnostic value of TTLV to discriminate CM from healthy subjects in early stage, as well, TTLV provides different features in CM other than functional evaluation in mJOA and anatomic features in MRI.","PeriodicalId":301856,"journal":{"name":"2014 19th International Conference on Digital Signal Processing","volume":"146 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128846475","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}

引用次数: 0

5G air interface design based on Universal Filtered (UF-)OFDM 基于UF- OFDM的5G空口设计

2014 19th International Conference on Digital Signal Processing Pub Date : 2014-09-18 DOI: 10.1109/ICDSP.2014.6900754

T. Wild, F. Schaich, Yejian Chen

{"title":"5G air interface design based on Universal Filtered (UF-)OFDM","authors":"T. Wild, F. Schaich, Yejian Chen","doi":"10.1109/ICDSP.2014.6900754","DOIUrl":"https://doi.org/10.1109/ICDSP.2014.6900754","url":null,"abstract":"In this paper we discuss 5G air interface design with respect to waveforms, multiple access and frame structure. We start by introducing the 5G system level requirements and expected scenarios. 5G will be driven by supporting very heterogeneous service and device classes. A unified frame structure for handling those heterogeneous traffic types is presented. Multiple access for 5G will make use of strict synchronicity where it is justifiable and will drop it where signalling overhead and energy consumption will demand for. In order to serve this unified frame structure best, the choice of the underlying waveform is discussed. CP-OFDM has its limitations in spectral properties and in conjunction with relaxed time-frequency alignment. The most discussed contender so far is Filter-Bank based Multi-Carrier (FBMC), with better spectral properties but new drawbacks introduced by offset-QAM and long filter lengths. Hence, a new alternative is required: Universal-Filtered OFDM (UF-OFDM), also known as Universal Filtered Multi-Carrier (UFMC), is a recent technology close to OFDM. UF-OFDM, according to encouraging results so far, summarized in this paper, fits best to the 5G system requirements. A further feature of the Unified Frame Structure is the usage of multiple signal layers. Here, users can be separated e.g. based on their interleavers, as done in Interleave-Division Multiple-Access (IDMA). This will introduce an additional degree of freedom for the system, improve robustness against crosstalk and helps to exploit the capacity of the multiple access channel (MAC). Altogether, the proposed new concepts offer an emboldening approach for dealing with the new challenges, faced by 5G wireless system designers.","PeriodicalId":301856,"journal":{"name":"2014 19th International Conference on Digital Signal Processing","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122070584","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}

引用次数: 200

Real-time signal processing for FM-based passive bistatic radar using GPUs 基于gpu的fm无源双基地雷达实时信号处理

2014 19th International Conference on Digital Signal Processing Pub Date : 2014-09-18 DOI: 10.1109/ICDSP.2014.6900723

Pei-lu Zhang, Yong Wu, Jun Wang, Jiahui Qiao

引用次数: 7

A theoretical bound for the performance advantage of quaternion widely linear estimation 四元数广义线性估计性能优势的理论界

2014 19th International Conference on Digital Signal Processing Pub Date : 2014-09-18 DOI: 10.1109/ICDSP.2014.6900839

C. Jahanchahi, S. Kanna, D. Mandic

引用次数: 4

Angle measurement accuracy analysis of sum-difference amplitude-comparison monopulse in onshore or shipborne ISAR 和差比幅单脉冲在陆上和船载ISAR中的角度测量精度分析

2014 19th International Conference on Digital Signal Processing Pub Date : 2014-09-18 DOI: 10.1109/ICDSP.2014.6900722

Wei Zhou, Junhao Xie, Yeshu Yuan, Shaobin Li

引用次数: 8

Characterization of individual muscle activities during isometric contraction using ultrasound imaging 超声成像在等长收缩过程中单个肌肉活动的表征

2014 19th International Conference on Digital Signal Processing Pub Date : 2014-09-18 DOI: 10.1109/ICDSP.2014.6900820

Jizhou Li, Yongjin Zhou, Xin Chen, Guo Dan, Y. Zheng

引用次数: 2

Fractional-order variational regularization for image decomposition 图像分解的分数阶变分正则化

2014 19th International Conference on Digital Signal Processing Pub Date : 2014-09-18 DOI: 10.1109/ICDSP.2014.6900821

Lingling Jiang, Haiqing Yin

引用次数: 1

Saliency map driven image retrieval combining the bag-of-words model and PLSA 结合词袋模型和PLSA的显著性地图驱动图像检索

2014 19th International Conference on Digital Signal Processing Pub Date : 2014-09-18 DOI: 10.1109/ICDSP.2014.6900671

Emmanouil Giouvanakis, Constantine Kotropoulos

引用次数: 15