IEEE Workshop on Signal Processing Systems Design and Implementation, 2005.最新文献_第3页

Power and area efficient turbo decoder implementation for mobile wireless systems 用于移动无线系统的功率和面积高效涡轮解码器实现

IEEE Workshop on Signal Processing Systems Design and Implementation, 2005. Pub Date : 1900-01-01 DOI: 10.1109/SIPS.2005.1579956

J. H. Han, A. Erdogan, T. Arslan

引用次数: 5

Combining the feature based stereo matching, motion and silhouette to reconstruct visual hull 结合基于特征的立体匹配、运动和轮廓重建视觉船体

IEEE Workshop on Signal Processing Systems Design and Implementation, 2005. Pub Date : 1900-01-01 DOI: 10.1109/SIPS.2005.1579913

H. Ebrahimnezhad, H. Ghassemian

{"title":"Combining the feature based stereo matching, motion and silhouette to reconstruct visual hull","authors":"H. Ebrahimnezhad, H. Ghassemian","doi":"10.1109/SIPS.2005.1579913","DOIUrl":"https://doi.org/10.1109/SIPS.2005.1579913","url":null,"abstract":"This paper proposes a new approach to reconstruct the visual hull of rigid object using its silhouettes captured by virtual cameras during time. The main idea of this work is to improve the quality of reconstruction by combing the advantages of different methods. Structure from silhouette, structure from motion and depth from stereo are popular methods in 3D reconstruction. But all of these methods suffer from some drawbacks. For example stereo matching fails to extract depth in low contrast regions but it works well in edge regions. Structure from silhouette can be employed to extract 3D shape of texture less object but it needs a lot of cameras to do fine. In this paper a robust feature based stereo matching of multi camera images is used to find the exact place of some sparse feature points on the surface of object. These 3D feature points are then employed to estimate six motion parameters in the next sequence. New virtual cameras are constructed by multiplying the calibration matrix to motion matrix in each frame. So, a lot of cameras can be constructed for the moving object during time. After all, the cone intersection method is used to extract the bounding edges visual hull from all the silhouettes captured by virtual cameras.","PeriodicalId":436123,"journal":{"name":"IEEE Workshop on Signal Processing Systems Design and Implementation, 2005.","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128475193","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

Adaptively weighted update steps using chrominance for scalable video coding 自适应加权更新步骤使用色度可扩展视频编码

IEEE Workshop on Signal Processing Systems Design and Implementation, 2005. Pub Date : 1900-01-01 DOI: 10.1109/SIPS.2005.1579952

Fengling Li, N. Ling

{"title":"Adaptively weighted update steps using chrominance for scalable video coding","authors":"Fengling Li, N. Ling","doi":"10.1109/SIPS.2005.1579952","DOIUrl":"https://doi.org/10.1109/SIPS.2005.1579952","url":null,"abstract":"Scalable video coding using motion-compensated temporal filtering is one of the latest trends in video coding standardization. In the lifting based motion-compensated temporal filtering framework, such as that in the joint scalable video model (JSVM), the data used in the update steps are basically the residuals from the motion-compensated prediction. When the motion model used in the prediction steps fails to capture the true motion, energy in the high-pass temporal frames becomes substantial and strong ghosting artifacts may be introduced to the low-pass frames during the update steps. In this paper we propose a new block-based update approach, which takes advantage of the chrominance information of the video sequence to further reduce ghosting artifacts in low-pass temporal frames. We adaptively weight the update steps according to the energy not only of luminance pixels, but also of chrominance pixels in the high-pass temporal frames at the corresponding locations. Experimental results show that the proposed algorithm can significantly improve the quality of the reconstructed video sequence, in PSNR and visual quality.","PeriodicalId":436123,"journal":{"name":"IEEE Workshop on Signal Processing Systems Design and Implementation, 2005.","volume":"02 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129882298","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

Algorithm optimization and architectural design of periodicity transform for biometric applications 生物识别应用周期变换的算法优化与体系结构设计

IEEE Workshop on Signal Processing Systems Design and Implementation, 2005. Pub Date : 1900-01-01 DOI: 10.1109/SIPS.2005.1579934

Lei Wang

引用次数: 2

Optic flow sensors for robots: elementary motion detectors based on FPGA 机器人光流传感器:基于FPGA的基本运动检测器

IEEE Workshop on Signal Processing Systems Design and Implementation, 2005. Pub Date : 1900-01-01 DOI: 10.1109/SIPS.2005.1579861

A. Fabrice, F. Nicolas

引用次数: 6

A Cordic based equalizer for multiuser detection in WCDMA systems WCDMA系统中基于Cordic的多用户检测均衡器

IEEE Workshop on Signal Processing Systems Design and Implementation, 2005. Pub Date : 1900-01-01 DOI: 10.1109/SIPS.2005.1579875

B. Heyne, Jurgen Gotze

引用次数: 2

Algorithm and architecture of prediction core in stereo video hybrid coding system 立体视频混合编码系统中预测核的算法与结构

IEEE Workshop on Signal Processing Systems Design and Implementation, 2005. Pub Date : 1900-01-01 DOI: 10.1109/SIPS.2005.1579926

Li-Fu Ding, Shao-Yi Chien, Liang-Gee Chen

{"title":"Algorithm and architecture of prediction core in stereo video hybrid coding system","authors":"Li-Fu Ding, Shao-Yi Chien, Liang-Gee Chen","doi":"10.1109/SIPS.2005.1579926","DOIUrl":"https://doi.org/10.1109/SIPS.2005.1579926","url":null,"abstract":"3D video will become noticeable video technology in the next generation. In this paper, a stereo video coding system is proposed from algorithm level to hardware architecture level. We propose a novel stereo video coding system by exploiting joint block compensation scheme to achieve high coding efficiency. It is also suitable for hardware implementation. Due to more than twice computational complexity relative to mono video coding systems, a new hardware architecture based on hierarchical search block matching algorithm (HSBMA) with some modification is proposed. With special data flow, no bubble cycles exist during block matching process. Proposed architecture also adopts near overlapped candidates reuse scheme (NOCRS) to save heavy burden of data access. Besides, by the proposed new scheduling, both on-chip memory requirement and offchip memory bandwidth can be reduced. A prototype chip can achieve real-time requirement under the operating frequency of 81 MHz for 30 D1 frames per second (fps) in left and right channel simultaneously, with ME/DE search range of [-64, +63] in horizontal direction and [-32, +31]/[-16, +15] in vertical direction. Compared with the hardware requirement for implementation of full search block matching algorithm (FSBMA), only 11.5% on-chip SRAM and 1/30 amount of PEs are needed. It shows that the hardware cost is quite small.","PeriodicalId":436123,"journal":{"name":"IEEE Workshop on Signal Processing Systems Design and Implementation, 2005.","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134538459","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

Coset-based quasi-cyclic LDPC codes for optimal overlapped message passing decoding 基于coset的准循环LDPC码的最优重叠报文传递译码

IEEE Workshop on Signal Processing Systems Design and Implementation, 2005. Pub Date : 1900-01-01 DOI: 10.1109/SIPS.2005.1579967

Yongmei Dai, Zhiyuan Yan

引用次数: 2

Neural dual particle filter and its application in speech enhancement 神经双粒子滤波及其在语音增强中的应用

IEEE Workshop on Signal Processing Systems Design and Implementation, 2005. Pub Date : 1900-01-01 DOI: 10.1109/SIPS.2005.1579911

Wenjie Shu, Zhiqiang Zheng

引用次数: 3

High-resolution ECG analysis: a fuzzy approach to detect ventricular late potentials using a wavelet-based vector magnitude waveform 高分辨率ECG分析:使用基于小波的矢量幅度波形检测心室晚电位的模糊方法

IEEE Workshop on Signal Processing Systems Design and Implementation, 2005. Pub Date : 1900-01-01 DOI: 10.1109/SIPS.2005.1579910

A. S. Zandi, M. Moradi

引用次数: 4