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2012 International Symposium on Intelligent Signal Processing and Communications Systems最新文献

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High resolution and frame rate image signal processor array design for 3-D imager 三维成像仪的高分辨率和帧率图像信号处理器阵列设计
2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473588
Chang-Hsin Cheng, Hsien-Ching Hsieh, T. Fan, Wei-Xiang Tang, Chung-Kai Liu, Po-Han Huang
{"title":"High resolution and frame rate image signal processor array design for 3-D imager","authors":"Chang-Hsin Cheng, Hsien-Ching Hsieh, T. Fan, Wei-Xiang Tang, Chung-Kai Liu, Po-Han Huang","doi":"10.1109/ISPACS.2012.6473588","DOIUrl":"https://doi.org/10.1109/ISPACS.2012.6473588","url":null,"abstract":"This paper presents a high resolution and frame rate image signal processor (ISP) array design for three-dimensional (3-D) imager. Based on the through-silicon via (TSV) technology, the short connections of the 3-D integrated circuit (IC) can improve the performance and density. Hence, the 3-D imager is the best solution for high throughput image capture or video recorder applications. The proposed ISP array is based on high resolution CMOS image sensor (CIS) and analog-to-digital converter (ADC) array to achieve three mega pixels (2048×1536) at 100 frames per second in 3-D imager. The architectural simulation results show the proposed design costs area 9000× 7000 μm2, average power 0.79 W and throughput 6.93 bps to verify the feasibility of high resolution and frame rate application for 3-D imager.","PeriodicalId":158744,"journal":{"name":"2012 International Symposium on Intelligent Signal Processing and Communications Systems","volume":"35 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":"133315955","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: 3
Padding block based DVC coding scheme with mutual bi-directional frame coding at decoder 基于填充块的DVC编码方案，在解码器处进行双向帧编码
2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473569
T. Lei, Shiunn-Jang Chern
{"title":"Padding block based DVC coding scheme with mutual bi-directional frame coding at decoder","authors":"T. Lei, Shiunn-Jang Chern","doi":"10.1109/ISPACS.2012.6473569","DOIUrl":"https://doi.org/10.1109/ISPACS.2012.6473569","url":null,"abstract":"In this paper, we apply the mutual bi-directional frame coding (MB-frame coding) to our previous proposed padding block based Distributed Video Coding (DVC) scheme for performance improvement. Basically, in the MB-frame coding approach, we adopt the mutual forward and backward video sequence frames to process within reference frames in each individual Group of Pictures (GOP) until no skip blocks could be padded at decoder. It is worth to noting that with this approach the computation complexity does not increase at encoder side, which is consistent with the basic concept to meet the low complexity DVC requirement. Indeed, it achieves the overall system performance improvement with the cost of increasing for average 30 % of computation complexity at decoder side. Via computer simulation we show that the experimental results with the MB frame coding approach has about 0.2 dB gain over the one which does not employ the MB-frames coding scheme.","PeriodicalId":158744,"journal":{"name":"2012 International Symposium on Intelligent Signal Processing and Communications Systems","volume":"2014 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":"132261362","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
Speech enhancement based on bias free noise reconstruction method 基于无偏置噪声重建的语音增强方法
2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473537
Shinichi Wada, N. Sasaoka, Y. Itoh, J. Okello, Masaki Kobayashi
{"title":"Speech enhancement based on bias free noise reconstruction method","authors":"Shinichi Wada, N. Sasaoka, Y. Itoh, J. Okello, Masaki Kobayashi","doi":"10.1109/ISPACS.2012.6473537","DOIUrl":"https://doi.org/10.1109/ISPACS.2012.6473537","url":null,"abstract":"In this paper, a speech enhancement method to reduce background noise in noisy speech is proposed. We have investigated the noise reconstruction system (NRS) based on linear prediction and system identification. First, a liner prediction error filter (LPEF) estimates the white noise which is a noise source. Next, a noise reconstruction filter (NRF) estimates the background noise from the estimated white noise. However, the conventional system uses finite impulse response (FIR) filters. The estimated white noise therefore contains the residual speech. As a result, the estimation accuracy of background noise is degraded at the NRF. In order to solve the problems, we introduce a lattice filter and an equation error adaptive digital filter (ADF) as the LPEF and the NRF respectively. Since a lattice filter approximates a vocal-tract filter for the speech production process, the residual speech is reduced. An equation error ADF with bias free is used for improving the quality of enhanced speech. However, the bias free equation error ADF degrades the estimation accuracy of background noise, thus the sub-filter is herein introduced to improve its estimation accuracy.","PeriodicalId":158744,"journal":{"name":"2012 International Symposium on Intelligent Signal Processing and Communications Systems","volume":"9 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":"133774339","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
A power saving scheme for delivering non-real-time data in IEEE 802.16m IEEE 802.16m标准下的非实时数据传输节能方案
2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473481
Kuo-Chih Chu, Tzu-Chi Huang, Jheng-Han Jhou, Wei-Tsong Lee
{"title":"A power saving scheme for delivering non-real-time data in IEEE 802.16m","authors":"Kuo-Chih Chu, Tzu-Chi Huang, Jheng-Han Jhou, Wei-Tsong Lee","doi":"10.1109/ISPACS.2012.6473481","DOIUrl":"https://doi.org/10.1109/ISPACS.2012.6473481","url":null,"abstract":"How to save power in wireless networks is a crucial problem because the official power saving scheme in IEEE 802.16m does not work efficiently. In this paper, we propose a power saving scheme for delivering non-real-time data. According to behaviors of a client in communication, our power saving scheme can dynamically adjust the sleep time of a client to avoid waking up the client and consuming its power. We use simulations to prove that a client can save more power with our power saving scheme than with the official power saving scheme in IEEE 802.16m.","PeriodicalId":158744,"journal":{"name":"2012 International Symposium on Intelligent Signal Processing and Communications Systems","volume":"41 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":"115384470","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
Seam carving based on improved line detection 基于改进线检测的缝雕刻
2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473541
Wan-Duo Ma, Hon-Hang Chang, T. Shih, Yung-Chen Chou
{"title":"Seam carving based on improved line detection","authors":"Wan-Duo Ma, Hon-Hang Chang, T. Shih, Yung-Chen Chou","doi":"10.1109/ISPACS.2012.6473541","DOIUrl":"https://doi.org/10.1109/ISPACS.2012.6473541","url":null,"abstract":"With the vigorous development of technology, more and more people rely on various computer and 3C products. Computer can enrich our live to make our thinking more colorful, but it is limited to the indoor environment because computer is not easy to carry anywhere, even for the notebook. For this reason, more kinds of 3C products with a small size have gradually increased then become the primary choice for playing around. However, the 3C products are not convenient to show the content of image or video clearly. Therefore, lots of techniques which related to image/video retargeting have been proposed to solve the problem in recent years. Nevertheless, these related techniques can retarget the image/video for the most of mediums, but for some certainly pictures or videos, which contain lots of straight lines. It will cause bad result because the line structure had been destroyed. By comparing the paper, the proposed method could perform well especially in some certainly image or video which contains lost of straight lines. We also compared our further improvement with some previous methods to verify the better result we proposed. The first section introduces some of proposed researches which related to image/video retargeting. The related method and the proposed method are shown in Section 2 and Section 3, respectively. Finally there are some convincing results and conclusions are shown in section 4 and 5, respectively.","PeriodicalId":158744,"journal":{"name":"2012 International Symposium on Intelligent Signal Processing and Communications Systems","volume":"18 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":"124537327","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
A high-performance 128-to-1 CMOS multiplexer tree 一个高性能的128对1 CMOS多路复用器树
2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473602
Po-Hui Yang, Jing-Min Chen, Kai-Shun Lin
{"title":"A high-performance 128-to-1 CMOS multiplexer tree","authors":"Po-Hui Yang, Jing-Min Chen, Kai-Shun Lin","doi":"10.1109/ISPACS.2012.6473602","DOIUrl":"https://doi.org/10.1109/ISPACS.2012.6473602","url":null,"abstract":"A high-performance 128-input CMOS multiplexer (MUX) tree is designed in this study. In order to enhance the speed, the high-speed feature of traditional transmission-gate MUX circuits and CMOS MUX circuits are integrated to the 128-to-1 MUX tree with high transmission speed. The circuit simulation in the CMOS 0.18μm process presents 26% reduction of delay time, comparing to the 128-to-1 MUX tree composed of traditional 2-to-1 CMOS.","PeriodicalId":158744,"journal":{"name":"2012 International Symposium on Intelligent Signal Processing and Communications Systems","volume":"100 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":"124600732","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: 9
A novel image-based object orientation estimation algorithm for robotic manipulator applications 一种新的基于图像的机械臂目标方向估计算法
2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473496
Chi-Yi Tsai, Ching-Chang Wong, Tsung-Yen Liu, An-Hung Tsao
{"title":"A novel image-based object orientation estimation algorithm for robotic manipulator applications","authors":"Chi-Yi Tsai, Ching-Chang Wong, Tsung-Yen Liu, An-Hung Tsao","doi":"10.1109/ISPACS.2012.6473496","DOIUrl":"https://doi.org/10.1109/ISPACS.2012.6473496","url":null,"abstract":"In many robotic manipulator applications, the robot manipulator usually requires knowing the orientation of an object-of-interest to perform grasp planning. This paper presents a novel image-based object orientation estimation algorithm that efficiently and accurately estimates the orientation of a geometric object from vision information only. First, a boundary-point set is defined from the boundary of a geometric object in a segmented binary image. Next, a new objective function is proposed to evaluate the maximum projection length of the boundary-point set onto a closed set with respect to an orientation angle. Finally, the orientation information of the geometric object is estimated via a one-dimensional minimization process. Simulation and experimental results show that the proposed method is able to provide accurate estimates for geometric objects with maximum absolute error less than 0.35°, which is enough to satisfy the requirement on robot grasping control tasks.","PeriodicalId":158744,"journal":{"name":"2012 International Symposium on Intelligent Signal Processing and Communications Systems","volume":"22 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":"129346709","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 model update scheme of color-based particle filter for multi-color object tracking 基于颜色的粒子滤波多色目标跟踪模型更新方案
2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473461
S. Hirose, N. Hamada
{"title":"A model update scheme of color-based particle filter for multi-color object tracking","authors":"S. Hirose, N. Hamada","doi":"10.1109/ISPACS.2012.6473461","DOIUrl":"https://doi.org/10.1109/ISPACS.2012.6473461","url":null,"abstract":"Color-invariance property of objects is effectively employed for developing non-rigid object tracking algorithms in the field of computer vision. This paper develops a novel color-based tracking algorithm for non-rigid 3-D objects with multiple colors. Especially, the proposed particle filter method can track the targets even if the appearance /disappearance of color regions were occurred by self-occlusion and pose variation like self-rotation. The basic idea is closely related to the rules of proximity and common fate in grouping mechanism in human psychology, and a new model updating scheme is introduced. The effective results by the proposed method are obtained by comparing it with other color-based particle filters.","PeriodicalId":158744,"journal":{"name":"2012 International Symposium on Intelligent Signal Processing and Communications Systems","volume":"42 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":"129925268","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
Implement a reliable and secure cloud distributed file system 实现可靠、安全的云分布式文件系统
2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473485
Fan-Hsun Tseng, Chi-Yuan Chen, Li-Der Chou, H. Chao
{"title":"Implement a reliable and secure cloud distributed file system","authors":"Fan-Hsun Tseng, Chi-Yuan Chen, Li-Der Chou, H. Chao","doi":"10.1109/ISPACS.2012.6473485","DOIUrl":"https://doi.org/10.1109/ISPACS.2012.6473485","url":null,"abstract":"In recent years, there are various cloud storage services have been proposed. The users can acquire the enormous cloud storage spaces through Internet even if the storage space of portable devices and handsets are limited. In this paper, we implement a distributed file system based on Apache Hadoop, and the original Hadoop distributed file system is replaced with the Tahoe least-authority file system. Furthermore, we investigate the total transmission rate and download time with two different file size. The experiment result shows that the established file system provides a secure and reliable cloud storage service even if parts of storage nodes are broken.","PeriodicalId":158744,"journal":{"name":"2012 International Symposium on Intelligent Signal Processing and Communications Systems","volume":"39 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":"129069056","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: 13
CMOS analog front end for ECG measurement system 心电测量系统的CMOS模拟前端
2012 International Symposium on Intelligent Signal Processing and Communications Systems Pub Date : 2012-11-01 DOI: 10.1109/ISPACS.2012.6473505
Yuhang Lyu, Qi-Xiu Wu, Po-Shin Huang, Hsiao-Chin Chen
{"title":"CMOS analog front end for ECG measurement system","authors":"Yuhang Lyu, Qi-Xiu Wu, Po-Shin Huang, Hsiao-Chin Chen","doi":"10.1109/ISPACS.2012.6473505","DOIUrl":"https://doi.org/10.1109/ISPACS.2012.6473505","url":null,"abstract":"In this paper, we present an analog front end for human electrocardiogram (ECG) measurement system. This analog front end contains an instrumentation amplifier (IA), off-chip passive filters, and a successive approximation register analog-to-digital converter (SAR-ADC). During the measurement, ECG signals are enhanced by the IA, and then quantized by SAR-ADC. A PC client collects the digital data and turns it into waveform shown on the monitor. Both the IA and SAR-ADC were fabricated in TSMC 0.18 μm 1P6M CMOS process. This system is dissipating 1.32 mW from 1.2 V supply. The IA delivers a gain of 40 dB with a bandwidth of 69 kHz. The SAR-ADC achieves an ENOB of 9.13 at a sampling rate of 50 kS/s.","PeriodicalId":158744,"journal":{"name":"2012 International Symposium on Intelligent Signal Processing and Communications Systems","volume":"30 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":"132317215","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: 9
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