2008 First Workshops on Image Processing Theory, Tools and Applications最新文献

An Altered Image Alignment Technique for 3D Motion Estimation of a Reflective Sphere 一种用于反射球三维运动估计的改变图像对准技术

2008 First Workshops on Image Processing Theory, Tools and Applications Pub Date : 2008-11-23 DOI: 10.1109/IPTA.2008.4743735

Yara Bachalany, François Cabestaing, C. Vieren, S. Ambellouis

{"title":"An Altered Image Alignment Technique for 3D Motion Estimation of a Reflective Sphere","authors":"Yara Bachalany, François Cabestaing, C. Vieren, S. Ambellouis","doi":"10.1109/IPTA.2008.4743735","DOIUrl":"https://doi.org/10.1109/IPTA.2008.4743735","url":null,"abstract":"Recovering 3D motion of reflective objects in image sequences is still a cumbersome problem for computer vision. One common approach is to track geometric features of the object such as contours and edges since they are rather insensitive to light reflections. However, such basic features fail to recover the actual 3D motion in some cases. For example, the external contour of a sphere rotating about one of its axes remains static in the image. In this paper, we propose a new approach to 3D motion recovery of a reflective sphere visible in an image sequence. Instead of tracking only geometric features, our technique makes use of texture information in a slightly modified image alignment method. Unlike in classical image alignment methods, texture information is processed differently whether it comes from a diffuse or a specular light component. Using this technique, we show that motion estimation is not only possible when dealing with reflective objects, but also that specular components can offer information about the 3D motion. Finally, we present some results obtained from the analysis of image sequences.","PeriodicalId":384072,"journal":{"name":"2008 First Workshops on Image Processing Theory, Tools and Applications","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115159625","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

Artificial Neural Networks Based Image Processing & Pattern Recognition: From Concepts to Real-World Applications 基于人工神经网络的图像处理与模式识别:从概念到实际应用

2008 First Workshops on Image Processing Theory, Tools and Applications Pub Date : 2008-11-23 DOI: 10.1109/IPTA.2008.4743797

Kurosh Madani

引用次数: 11

A New Approach to Face Image Coding using Gabor Wavelet Networks 基于Gabor小波网络的人脸图像编码新方法

2008 First Workshops on Image Processing Theory, Tools and Applications Pub Date : 2008-11-23 DOI: 10.1109/IPTA.2008.4743787

A. Chaari, F. Cabestaing, D. Sellami-Masmoudi

引用次数: 2

Machine Vision Based Quality Monitoring in Olive Oil Conditioning 基于机器视觉的橄榄油调理质量监测

2008 First Workshops on Image Processing Theory, Tools and Applications Pub Date : 2008-11-01 DOI: 10.1109/IPTA.2008.4743743

K. Taouil, Z. Chtourou, L. Kamoun

引用次数: 12

Image Denoising in the Wavelet Transform Domain Based on Stein's Principle 基于Stein原理的小波变换域图像去噪

2008 First Workshops on Image Processing Theory, Tools and Applications Pub Date : 2008-11-01 DOI: 10.1109/IPTA.2008.4743802

A. Benazza-Benyahia, J. Pesquet, C. Chaux

{"title":"Image Denoising in the Wavelet Transform Domain Based on Stein's Principle","authors":"A. Benazza-Benyahia, J. Pesquet, C. Chaux","doi":"10.1109/IPTA.2008.4743802","DOIUrl":"https://doi.org/10.1109/IPTA.2008.4743802","url":null,"abstract":"In this tutorial paper, we are interested in image denoising in the wavelet domain. The objective is to describe in a unifying framework the most relevant methods which exploit Stein's principle to build estimators for images embedded in Gaussian noise. The appealing advantage of Stein's Unbiased Risk Estimate (SURE) is that it does not require a priori knowledge about the statistics of the unknown data, while yielding an estimate of the quadratic risk only depending on the statistics of the observed data. Hence, it avoids the difficult problem of the estimation of the hyperparameters of some prior distribution, which classically needs to be addressed in Bayesian methods. We begin by formulating the noise reduction problem as a problem involving the minimization of criteria derived from Stein's principle. Then, we focus on the main methods operating on linear expansions of the observed image. Both cases of non redundant and overcomplete representations are addressed. Besides, a special attention is paid to multispectral images for which there is much gain to expect in exploiting the cross-channel correlations in the denoising procedure.","PeriodicalId":384072,"journal":{"name":"2008 First Workshops on Image Processing Theory, Tools and Applications","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122934533","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

HW/SW Interface Impact on an Adaptive Multimedia System Performance: Case study 硬件/软件接口对自适应多媒体系统性能的影响:案例研究

2008 First Workshops on Image Processing Theory, Tools and Applications Pub Date : 2008-11-01 DOI: 10.1109/IPTA.2008.4743790

M. Hentati, N. Ben Amor, K. Loukil, M. Abid, J. Diguet

引用次数: 3

Automatic detection of chemotaxis cells in angiogenesis process 血管生成过程中趋化细胞的自动检测

2008 First Workshops on Image Processing Theory, Tools and Applications Pub Date : 2008-11-01 DOI: 10.1109/IPTA.2008.4743740

D. Kovacs, E. Brassart, C. Drocourt

{"title":"Automatic detection of chemotaxis cells in angiogenesis process","authors":"D. Kovacs, E. Brassart, C. Drocourt","doi":"10.1109/IPTA.2008.4743740","DOIUrl":"https://doi.org/10.1109/IPTA.2008.4743740","url":null,"abstract":"A research sector mattering in the medical environment, concerns the study of the neovascularization mechanisms from pre-existing capillary vessels: Angiogenesis. These researches are very important because they correspond to many physiological but also pathological processes: in particular the growth of tumors and the development of the metastases. In this paper we are interested in the particular case of chemotaxis in the field of the angiogenesis. Indeed studies show that according to molecules applied to tumors, the capillary and other vessels develop less quickly, and can be stopped. It allows to reduce the supply to blood nutriments of the tumor and eventually to provoke its degeneration. The study proposed in this paper shows a first application on this subject with a study on in vitro cultures of umbilical cells. During a voluntary incision in a culture of blood cells, and the injection of specific molecules on this wound, we determine the healing speed. The longer the healing time is, the more effective the molecule is. The image analysis that we propose here concerns the detection of blood cells in plate and the detection of the realized incision. The created software of images treatment and the reference images are available on the following site: /www.rteam.iut-amiens.fr/angioscin/.","PeriodicalId":384072,"journal":{"name":"2008 First Workshops on Image Processing Theory, Tools and Applications","volume":"13 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127595663","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

Text Line Segmentation in Images of Handwritten Historical Documents 手写体历史文献图像的文本线分割

2008 First Workshops on Image Processing Theory, Tools and Applications Pub Date : 2008-11-01 DOI: 10.1109/IPTA.2008.4743758

A. Sanchez, P. D. Suárez, C. Mello, A.L.I. Oliveira, V. Alves

引用次数: 27

Automated Human Recognition by Gait using Neural Network 基于神经网络的步态自动人体识别

2008 First Workshops on Image Processing Theory, Tools and Applications Pub Date : 2008-11-01 DOI: 10.1109/IPTA.2008.4743792

Jang-Hee Yoo, Doosung Hwang, Kiyoung Moon, M. Nixon

引用次数: 102

Image Encryption and Compression for Medical Image Security 用于医学图像安全的图像加密和压缩

2008 First Workshops on Image Processing Theory, Tools and Applications Pub Date : 2008-11-01 DOI: 10.1109/IPTA.2008.4743800

William Puech

引用次数: 39