2012 International Symposium on Intelligent Signal Processing and Communications Systems最新文献_第8页

Efficient differential prediction error based intra mode decision algorithm for video coding 基于差分预测误差的高效视频编码模式内决策算法

2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473513

K. Bharanitharan, Bo-Wei Chen, A. Tsai

引用次数: 0

An improved obstacle detection using optical flow adjusting based on inverse perspective mapping for the vehicle safety 基于反透视映射的改进的光流调节障碍检测方法

2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473458

Chin-Yi He, Chao-Tse Hong, Rong-Chin Lo

引用次数: 6

Low-complexity beam steering algorithm based on binary search strategy for receive beamform 基于二分搜索策略的接收波束形式低复杂度波束引导算法

2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473617

You-Hsien Lin, Tsung-Yu Tsai, Ying-Liang Chen, Ta Ko, Chun-Che Chien, Terng-Yin Hsu

引用次数: 1

Image retrieval by region of interest motif co-occurence matrix 基于感兴趣区域基序共现矩阵的图像检索

2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473494

Yen-shin Lee, Shu-Sheng Hao, Shu Lin, Sheng-Yi Li

{"title":"Image retrieval by region of interest motif co-occurence matrix","authors":"Yen-shin Lee, Shu-Sheng Hao, Shu Lin, Sheng-Yi Li","doi":"10.1109/ISPACS.2012.6473494","DOIUrl":"https://doi.org/10.1109/ISPACS.2012.6473494","url":null,"abstract":"Because of the fast developing technologies in multimedia devices, we are able to receive huge amounts of images from daily life. Once these images have been stored, the next step is to figure out how to retrieve the desired pictures quickly and accurately from the database. In this paper, we intend to develop an efficient image retrieval algorithm. Using this algorithm, we can retrieve desired images by using similar input sample images. Our research images include vehicles, buildings, flowers and other natural scenes. First, we applied the edge and morphological filter on the grey scale images to refill and extract the largest interesting object from the image. Second, we developed an image retrieval algorithm called Region of Interest (ROI) Motif Co-occurrence Matrix (RMCM) to find the relation of the neighboring pixels on the image. In this algorithm, we need to generate a 2 × 2 pattern called a motif. The main idea of this algorithm is to quickly and accurately find the characteristic values about motif. Finally, we can compare the Euclidean distance of the characteristic values from the motif to locate the most similar image from database. In our develop algorithm we combine the partly area motif and characteristic area center location methods to raise the accuracy and speed of recognition. Using our proposed algorithm RMCM, the mean processing time is about 0.82 seconds per image. This value is faster than using Motif Co-occurrence Matrix (MCM) by about 2.57 times. The accurate recognition rates are about 95% and 87% as related to vehicles and buildings.","PeriodicalId":158744,"journal":{"name":"2012 International Symposium on Intelligent Signal Processing and Communications Systems","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133882724","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: 6

Efficient multimedia transmission in wireless sensor networks 无线传感器网络中高效的多媒体传输

2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473607

Bo-Yi Li, Po-Jen Chuang

{"title":"Efficient multimedia transmission in wireless sensor networks","authors":"Bo-Yi Li, Po-Jen Chuang","doi":"10.1109/ISPACS.2012.6473607","DOIUrl":"https://doi.org/10.1109/ISPACS.2012.6473607","url":null,"abstract":"For Wireless Multimedia Sensor Networks (WMSN), how to increase the throughput in constrained environments has become the main challenge. Multipath routing is a promising solution because it can improve the channel utilization rate, reduce transmission delay and balance the transmission load. To pursue high efficiency for a multipath routing scheme, we need to take the characteristics of wireless environments and sensor networks into careful considerations. Based on such considerations, this paper introduces a new routing scheme which divides the whole network topology into many districts and simultaneously forwards data through these districts without interfering with each other - to achieve interference-free transmissions. Our scheme will adjust the load of each district according to the energy status of their nodes; it does not establish fixed paths in advance and will hence maintain high performance even when the topology changes rapidly. Simulation results show that, when compared with related routing schemes, our scheme can achieve higher performance at real-time transmission and meanwhile distribute transmission loads more evenly to most of the nodes in the network.","PeriodicalId":158744,"journal":{"name":"2012 International Symposium on Intelligent Signal Processing and Communications Systems","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116617458","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: 2

Hash-based identification of JPEG 2000 images in encrypted domain 加密域JPEG 2000图像的哈希识别

2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473535

Toshiyuki Dobashi, Osamu Watanabe, T. Fukuhara, H. Kiya

引用次数: 8

A dynamic tracking mechanism for mobile target in wireless sensor networks 无线传感器网络中移动目标的动态跟踪机制

2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473605

Kuo-Feng Huang, Hsing-Hsien Wang, Wei-Jie Wang, Ying-Hong Wang

引用次数: 3

A grid-tied flyback-based PV inverter with BCM variable frequency voltage mode control 基于BCM变频电压模式控制的并网反激式光伏逆变器

2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1080/02533839.2013.839422

K. Juang, S. Chiang, W. Xiao

引用次数: 16

Ant colony optimization algorithm design and its FPGA implementation 蚁群优化算法设计及其FPGA实现

2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473492

Shih-An Li, Min-Hao Yang, Chung-Wei Weng, Yi-Hong Chen, Chia-Hung Lo, Ching-Chang Wong

引用次数: 5

Exact bit error analysis of soft decision Viterbi decoding for truncated path history and an application to interference channels 截断路径历史软判决维特比译码的精确误码分析及其在干扰信道中的应用

2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473579

Yu Morishima, I. Oka, S. Ata

引用次数: 0