2002 IEEE Workshop on Multimedia Signal Processing.最新文献

Factorization with missing data for 3D structure recovery 基于缺失数据的三维结构恢复分解

2002 IEEE Workshop on Multimedia Signal Processing. Pub Date : 2002-12-09 DOI: 10.1109/MMSP.2002.1203259

Rui F. C. Guerreiro, P. Aguiar

{"title":"Factorization with missing data for 3D structure recovery","authors":"Rui F. C. Guerreiro, P. Aguiar","doi":"10.1109/MMSP.2002.1203259","DOIUrl":"https://doi.org/10.1109/MMSP.2002.1203259","url":null,"abstract":"Matrix factorization methods are now widely used to recover 3D structure from 2D projections [C. Tomasi and T. Kanade. International Journal of Computer Vision, 9(2), 1992] . In this practice, the observation matrix to be factored out has missing data, due to the limited field of view and the occlusion that occur in real video sequences. In opposition to the optimality of the SVD to factor out matrices without missing entries, the optimal solution for the missing data case is not known. In R.F.C. Guerreiro and P.M.Q. Aguiar [IEEE ICIP, New York, USA, September 2002] we introduced suboptimal algorithms that proved to be more efficient than previous approaches to the factorization of matrices with missing data. In this paper we make an experimental analysis of the algorithms of R.F.C. Guerreiro and P.M.Q. Aguiar [IEEE ICIP, New York, USA, September 2002] and demonstrate their performance in virtual reality and video compression applications. We conclude that these algorithms are adequate to the amount of missing entries that may occur when processing real videos; robust to the typical level of noise in practical applications; and computationally as simple as the factorization of matrices without missing entries.","PeriodicalId":398813,"journal":{"name":"2002 IEEE Workshop on Multimedia Signal Processing.","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121796725","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: 12

Content-based video database retrieval through robust corner tracking 基于内容的鲁棒角点跟踪视频数据库检索

2002 IEEE Workshop on Multimedia Signal Processing. Pub Date : 2002-12-09 DOI: 10.1109/MMSP.2002.1203287

F. Mokhtarian, F. Mohanna

{"title":"Content-based video database retrieval through robust corner tracking","authors":"F. Mokhtarian, F. Mohanna","doi":"10.1109/MMSP.2002.1203287","DOIUrl":"https://doi.org/10.1109/MMSP.2002.1203287","url":null,"abstract":"A content-based video retrieval system based on extracting corners from frames and tracking them through video databases is proposed. To extract corners from each frame of video sequence in pre-processing stage, proposed multi-scale corner detector is applied. As a user interface, a proposed fast active contour model has been used to specify one object of interest as a query in one of the frames of each video shot. This frame which is in the selected-frame are extracted and tracked forwardly and backwardly through the whole of that shot using proposed multiple-match tracker. The multi-match tracker, which does not make any important assumptions or use any motion models, can retrieve the query in any video sequence even when there is unconstrained and non-smooth motion. By tracking the corners or query object forwardly and backwardly, the positions of similar objects in each video frame are determined. Two methods are considered for demonstrating the query and its similar objects to the user. Experiments have been carried out on a wide range of real video databases. All the results confirm that among the existing techniques, proposed method which exploits image corners is believed to be more generally applicable.","PeriodicalId":398813,"journal":{"name":"2002 IEEE Workshop on Multimedia Signal Processing.","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122792255","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: 7

Watermarking for 3D NURBS graphic data 三维NURBS图形数据的水印

2002 IEEE Workshop on Multimedia Signal Processing. Pub Date : 2002-12-09 DOI: 10.1109/MMSP.2002.1203306

Jae Jun Lee, N. Cho, Jongweon Kim

引用次数: 41

Comparison of residual compression methods in motion compensated video 运动补偿视频中残余压缩方法的比较

2002 IEEE Workshop on Multimedia Signal Processing. Pub Date : 2002-12-09 DOI: 10.1109/MMSP.2002.1203260

Weekiong Poh, D. Monro

引用次数: 7

Signal combining techniques for video watermarking extraction 视频水印提取中的信号组合技术

2002 IEEE Workshop on Multimedia Signal Processing. Pub Date : 2002-12-09 DOI: 10.1109/MMSP.2002.1203317

Tiago Rosa Maria Paula Queluz, T. Brandão, A. Rodrigues

引用次数: 1

Statistical techniques in video data management 视频数据管理中的统计技术

2002 IEEE Workshop on Multimedia Signal Processing. Pub Date : 2002-12-09 DOI: 10.1109/MMSP.2002.1203284

M. Naphade

引用次数: 9

Scalable robust audio fingerprinting using MPEG-7 content description 使用MPEG-7内容描述的可扩展鲁棒音频指纹

2002 IEEE Workshop on Multimedia Signal Processing. Pub Date : 2002-12-09 DOI: 10.1109/MMSP.2002.1203273

J. Herre, O. Hellmuth, M. Cremer

引用次数: 16

Summarizing video using non-negative similarity matrix factorization 利用非负相似矩阵分解对视频进行总结

2002 IEEE Workshop on Multimedia Signal Processing. Pub Date : 2002-12-09 DOI: 10.1109/MMSP.2002.1203239

Matthew L. Cooper, J. Foote

引用次数: 120

An experimental study on the performance of visual information retrieval similarity models 视觉信息检索相似度模型性能的实验研究

2002 IEEE Workshop on Multimedia Signal Processing. Pub Date : 2002-12-09 DOI: 10.1109/MMSP.2002.1203289

H. Eidenberger, C. Breiteneder

引用次数: 4

Compact and robust speech recognition for embedded use on microprocessors 紧凑和强大的语音识别用于嵌入式微处理器

2002 IEEE Workshop on Multimedia Signal Processing. Pub Date : 2002-12-09 DOI: 10.1109/MMSP.2002.1203302

N. Hataoka, H. Kokubo, Y. Obuchi, A. Amano

引用次数: 10