2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)最新文献_第9页

Design of generic hardware for soft cascade-based linear SVM classification 基于软级联的线性支持向量机分类通用硬件设计

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432776

Eric Aliwarga, Jaehoon Yu, M. Hatanaka, T. Onoye

{"title":"Design of generic hardware for soft cascade-based linear SVM classification","authors":"Eric Aliwarga, Jaehoon Yu, M. Hatanaka, T. Onoye","doi":"10.1109/ISPACS.2015.7432776","DOIUrl":"https://doi.org/10.1109/ISPACS.2015.7432776","url":null,"abstract":"Support Vector Machine is renowned as a powerful machine learning algorithm for many classification problems. However, among all the works proposed for SVM hardware implementation, a lot of them are designed with predefined settings for specific objective, rendering them usable only for single or few purposes. This paper presents an SVM hardware architecture capable of classifying input data with arbitrary vector dimensionality and arbitrary precision, resulting in a generic support vector machine capable of classifying various targets. The proposed architecture also employs a speed-up method called soft cascade algorithm to enhance its performance. To assess its hardware implementation, it is synthesized in two styles using Xilinx FPGA and NanGate Open Cell Library. The results show a feasible circuit scale implementation, and when used for CoHOG pedestrian detection, the proposed hardware architecture is estimated to be capable of classifying up to 79 VGA images per second on FPGA and up to 35 HD images per second on 45nm process technology circuit, even under the condition that the architecture is not designed specifically for the aforementioned purpose.","PeriodicalId":238787,"journal":{"name":"2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127624394","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

A 8-bit 1-GS/s subranged ADC in 65-nm CMOS process 基于65nm CMOS工艺的8位1-GS/s分段ADC

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432733

Hsin-Liang Chen, Shu-Chuan Yang

引用次数: 0

Scalable video streaming for multicast in wireless networks 无线网络中用于多播的可扩展视频流

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432762

T. Chin, Tsu-Yi Chen, Cheng-Chia Huang, Tien-Ruey Hsiang

{"title":"Scalable video streaming for multicast in wireless networks","authors":"T. Chin, Tsu-Yi Chen, Cheng-Chia Huang, Tien-Ruey Hsiang","doi":"10.1109/ISPACS.2015.7432762","DOIUrl":"https://doi.org/10.1109/ISPACS.2015.7432762","url":null,"abstract":"Multicast video streaming in a wireless network allows a group of users to watch video and share the scarce bandwidth at the same time. Since the channel quality of each client may be different, it is difficult to control the perceived video quality in a multicast group. To ensure the whole group receives the data, some multicast mechanisms use the client with the worst channel quality as a reference to decide transmission speed. However, it may result in very low average video quality. This paper proposes a scheme, namely Scalable Video Multicast, to maximize the average perceived video quality in a multicast group in wireless networks. The proposed scheme uses the property that different modulation coding schemes provide different transmission speed and have different transmission distances. Scalable Video Coding (SVC) and transmission rate scheduling are exploited to improve the average video quality perceived by the clients. The base layers of video frames provide basic visual quality to the clients. Rate scheduling applied on the enhancement layers improves the average visual quality. Simulations show that the proposed rate scheduling for SVC blocks can improve the average perceived video quality of multicast clients and outperforms other mechanisms in the literature.","PeriodicalId":238787,"journal":{"name":"2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131474754","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

Small and compact Diversity Combining using selective method for mobile application 移动应用中采用选择性方法的小而紧凑的分集组合

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432771

Andyes Fourman D.A. Sudirja, T. Adiono

{"title":"Small and compact Diversity Combining using selective method for mobile application","authors":"Andyes Fourman D.A. Sudirja, T. Adiono","doi":"10.1109/ISPACS.2015.7432771","DOIUrl":"https://doi.org/10.1109/ISPACS.2015.7432771","url":null,"abstract":"The destruction caused by channel can be seen by the existence of Amplitude and Phase Shift. By using the Diversity Combining method, It is expected that the disruption caused by Amplitude and Phase Shift can be suppressed as small as possible. In addition, by using Diversity Combining module, the signal will have a larger SNR output which has a value sum of SNR from each diversity path. The design of Diversity Combining module begins with MATLAB functional design as a big picture of the whole system. Subsequently, it will be made the hardware based on the MATLAB functional. This architectural design will be the cornerstone in the design of MATLAB bit precision (hardware precision). The hardware modelling using MATLAB bit precision will be designed as the foundation of the VHDL (hardware) design. In the end, the output shown that this paper results meet the standards specified by the DVB consortium. In the hardware (FPGA) test results of Diversity Combining, the maximum working frequency is 44.56 MHz which has shown that is qualified with the standard sampling clock (9.142 MHz). This design also needs 4% of total FPGA Cyclone II 484I8 combinational units which is 2499 units and it needs also 3% of total register of FPGA Cyclone II 484I8 which is 1720 register units.","PeriodicalId":238787,"journal":{"name":"2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133956882","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

Speech enhancement with zero replacement signal at low SNR 低信噪比下零替代信号语音增强

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432754

Yuta Iwai, T. Shimamura

引用次数: 4

Fault tolerant quickest detection for power quality events in smart grid AMI networks 智能电网AMI网络中电能质量事件的容错快速检测

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432757

Cheng-Guan Hou, Shih-Chun Lin, Shih-Tang Su, W. Chung

引用次数: 3

Limitations of learning-based Super-Resolution 基于学习的超分辨率的局限性

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432851

Hiroki Shoji, S. Gohshi

{"title":"Limitations of learning-based Super-Resolution","authors":"Hiroki Shoji, S. Gohshi","doi":"10.1109/ISPACS.2015.7432851","DOIUrl":"https://doi.org/10.1109/ISPACS.2015.7432851","url":null,"abstract":"In recent years, studies on Super Resolution (SR) have increased because of the introduction of 4K and 8K resolution. Super-Resolution image Reconstruction (SRR) and Learning-Based Super-Resolution (LBSR) are typical SR techniques. SRR performance limitations have been mentioned in several studies. However, practical performance of LBSR has not been clarified. If LBSR is used on a video device such as a television, it is necessary to assess the degree of image quality improvement in various types of images inputs to the device. Furthermore, the conventional Bicubic and Lanczos interpolation techniques are in general use as image enlargement techniques. LBSR is expected to perform better than such techniques. Accordingly, we conduct an objective evaluation of the practical performance of LBSR to determine its limitations. Applying LBSR to multiple images, we show that there are limitations to its ability to improve resolution, and that there is no benefit in improvement of resolution as compared with images enlarged using conventional interpolation techniques. Furthermore, real-time processing is essential for SR to apply to a video. However, the latest research shows that it is still difficult to process in real time. We discuss challenges in applying LBSR to a video with reference to the latest research. We evaluate the limitations of LBSR based on these issues.","PeriodicalId":238787,"journal":{"name":"2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115376113","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: 4

Extended semantic initialization for NMF-based audio source separation 基于nmf的音频源分离扩展语义初始化

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432745

Christian Rohlfing, J. Becker

引用次数: 1

Color image processing system based on color/brightness constancy 基于颜色/亮度恒定的彩色图像处理系统

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432729

Siaw-Lang Wong, Shiori Arii, R. Paramesran, A. Taguchi

引用次数: 1

Implementation on 3D surface algorithm for measuring thickness parameter of sensor chip 传感器芯片厚度参数测量的三维曲面算法实现

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432765

E. Prakasa, E. Kurniawan, A. Nurhadiyatna, L. Musa, P. Reidler

引用次数: 4