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Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)最新文献

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Robust spot fitting for genetic spot array images 遗传点阵列图像的鲁棒点拟合
Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101) Pub Date : 2000-09-10 DOI: 10.1109/ICIP.2000.899421
Horng-Yang Chen, Norbert Brändle, H. Bischof, H. Lapp
{"title":"Robust spot fitting for genetic spot array images","authors":"Horng-Yang Chen, Norbert Brändle, H. Bischof, H. Lapp","doi":"10.1109/ICIP.2000.899421","DOIUrl":"https://doi.org/10.1109/ICIP.2000.899421","url":null,"abstract":"Addresses the problem of reliably fitting parametric and semi-parametric models to high density spot array images obtained in gene expression experiments. The goal is to measure the amount of genetic material at specific spot locations. Many spots can be modelled accurately by a Gaussian shape. In order to deal with highly overlapping spots the authors use robust M-estimators. When the parametric method fails, they use a novel, robust semi-parametric method which can handle spots of different shapes accurately. They present the results for real data and compare the complexity of the two methods.","PeriodicalId":193198,"journal":{"name":"Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117161348","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
Image restoration by fuzzy convex ordinary kriging 模糊凸普通克里金图像复原
Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101) Pub Date : 2000-09-10 DOI: 10.1109/ICIP.2000.900905
T. Pham, M. Wagner
{"title":"Image restoration by fuzzy convex ordinary kriging","authors":"T. Pham, M. Wagner","doi":"10.1109/ICIP.2000.900905","DOIUrl":"https://doi.org/10.1109/ICIP.2000.900905","url":null,"abstract":"Ordinary kriging and fuzzy sets are combined to derive a spatial filter for restoring degraded images. As kriging is a nonconvex estimation technique and negative kriging weights applied to image data can give estimates outside the range of pixel values. Convexity is therefore required in this image analysis to ensure no negative weights. Fuzzy sets are used to enhance the smoothing process of an ordinary kriging filter. Experiments on an image degraded by Gaussian white noise are given to illustrate the effectiveness of the proposed approach in comparison with the adaptive Wiener filter.","PeriodicalId":193198,"journal":{"name":"Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)","volume":"63 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120997855","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
Multiple-face tracking system for general region-of-interest video coding 通用感兴趣区域视频编码的多人脸跟踪系统
Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101) Pub Date : 2000-09-10 DOI: 10.1109/ICIP.2000.900966
Liu Yang, M. Robertson
{"title":"Multiple-face tracking system for general region-of-interest video coding","authors":"Liu Yang, M. Robertson","doi":"10.1109/ICIP.2000.900966","DOIUrl":"https://doi.org/10.1109/ICIP.2000.900966","url":null,"abstract":"An algorithm has been developed which locates and tracks faces in color video sequences for rise in region-of-interest video compression. Our face-tracking algorithm detects faces in the hue-saturation-value (HSV) color space and reduces false alarms based on various cues, including size, shape position, and aspect ratio. The algorithm also performs temporal filtering to enforce consistency from frame to frame. The face tracker is integrated in the rate control of a video encoder, which allows more bits to be committed to the face regions at the cost of reduced bits in the non-face regions. Thus, image quality can be greatly improved in face regions at the cost of reduced quality in background regions, resulting in better overall subjective quality for many sequences.","PeriodicalId":193198,"journal":{"name":"Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127230876","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: 11
Multirate coding of 3D medical data 三维医疗数据的多速率编码
Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101) Pub Date : 2000-09-10 DOI: 10.1109/ICIP.2000.899539
G. Menegaz, L. Grewe, J. Thiran
{"title":"Multirate coding of 3D medical data","authors":"G. Menegaz, L. Grewe, J. Thiran","doi":"10.1109/ICIP.2000.899539","DOIUrl":"https://doi.org/10.1109/ICIP.2000.899539","url":null,"abstract":"The last generation medical imaging equipment produce multidimensional (3D or 3D+time) data distributions. On a coding perspective, it is reasonable to expect that the exploitation of the full dimensional correlation among data samples would lead to a sensible improvement in compression performances, especially for isotropic datasets. We propose a fully three-dimensional wavelet-based coding system providing a finely-graded up to lossless data representation in a single bistream. The data are first decorrelated by a 3D discrete wavelet transform, performed by the non-linear lifting scheme mapping integers to integers. This enables the lossless mode and permits the in-place implementation of the transform at a reduced computational complexity. The coding scheme is inspired to the layered-zero coding proposed by Taubman and Zakhor (1994), extended to handle fully 3D subband structures. Performances are characterized with respect to both the 2D version of the same algorithm and the JPEG standard. The rate-saving is strongly influenced by the amount of the data correlation in the z dimension, ranging between 16.5% and 5.5% for the considered datasets.","PeriodicalId":193198,"journal":{"name":"Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126734119","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: 23
Finite precision wavelets for image coding: lossy and lossless compression performance evaluation 有限精度小波图像编码:有损和无损压缩性能评价
Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101) Pub Date : 2000-09-10 DOI: 10.1109/ICIP.2000.899331
Marco Grangetto, E. Magli, G. Olmo
{"title":"Finite precision wavelets for image coding: lossy and lossless compression performance evaluation","authors":"Marco Grangetto, E. Magli, G. Olmo","doi":"10.1109/ICIP.2000.899331","DOIUrl":"https://doi.org/10.1109/ICIP.2000.899331","url":null,"abstract":"This paper investigates the robustness of the wavelet transform, implemented by means of the lifting scheme (LS), with respect to numerical errors in the representation and calculation of transformed coefficients. The study promises to offer important contributions for the understanding of the LS capabilities when specific implementations are considered. This is a topic of growing interest as the new standard JPEG 2000, based on the wavelet transform, is being finalized. Taking into account the effect of finite precision representation can drive both software and hardware implementations with optimized trade off between complexity and performance; moreover the robustness to numerical errors could be an important feature, not usually considered, in order to select the best wavelet filters.","PeriodicalId":193198,"journal":{"name":"Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114937749","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
An iterative algorithm for the projective registration of free form surfaces 自由曲面投影配准的迭代算法
Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101) Pub Date : 2000-09-10 DOI: 10.1109/ICIP.2000.901004
Yonghuai Liu, M. Rodrigues
{"title":"An iterative algorithm for the projective registration of free form surfaces","authors":"Yonghuai Liu, M. Rodrigues","doi":"10.1109/ICIP.2000.901004","DOIUrl":"https://doi.org/10.1109/ICIP.2000.901004","url":null,"abstract":"In this paper we present a novel image registration algorithm combining the iterative closest point algorithm with focus of expansion theory for 3D-2D projective registration of free-form surfaces. A pure translational camera configuration is used, which is a widely adopted constraint to structural estimation. Experimental results based on both synthetic and real images have shown that the proposed algorithm provides accurate and efficient registration and effective elimination of false matches.","PeriodicalId":193198,"journal":{"name":"Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115188038","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
A scene boundary detection method 一种场景边界检测方法
Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101) Pub Date : 2000-09-10 DOI: 10.1109/ICIP.2000.899610
Minn Chung, Hyeokman Kim, S. M. Song
{"title":"A scene boundary detection method","authors":"Minn Chung, Hyeokman Kim, S. M. Song","doi":"10.1109/ICIP.2000.899610","DOIUrl":"https://doi.org/10.1109/ICIP.2000.899610","url":null,"abstract":"A visual rhythm is a special 2D image reduced from a 3D video data in a way that the pixels along a vertical line of the visual rhythm are the pixels uniformly sampled along the diagonal line of a video frame. Using the distinct visual patterns to appear on the visual rhythm, we propose a video segmentation method to effectively detect both abrupt and gradual shot transitions. Specifically, the algorithms to detect cut, wipe and dissolve transitions are outlined. It is noted that the proposed method operates on a small fraction of the original video data, and thus offers remarkable computational savings.","PeriodicalId":193198,"journal":{"name":"Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116029824","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: 25
Analysis of corneal images for assessing contact lens trauma 角膜图像评估接触镜损伤的分析
Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101) Pub Date : 2000-09-10 DOI: 10.1109/ICIP.2000.900923
Janine Cullen, P. Fieguth, Shane Pounder, Kimberley J. Whitear
{"title":"Analysis of corneal images for assessing contact lens trauma","authors":"Janine Cullen, P. Fieguth, Shane Pounder, Kimberley J. Whitear","doi":"10.1109/ICIP.2000.900923","DOIUrl":"https://doi.org/10.1109/ICIP.2000.900923","url":null,"abstract":"Contact lens wearers are often affected by a condition known as conjuctival hyperaemia. This condition is characterised by dilated blood vessels visible in the sclera (the white portion of the eye). Optometrists need to be able to detect changes in the level of redness and to repeatably assess the absolute levels of redness found in a patient's eye in order to prescribe and evaluate treatment. The goal of this paper is to develop an automated method for grading the level of redness in human eyes. The selected features examine the average redness and length of arterial edges. The computed features are correlated with expert data collected to train the redness estimator.","PeriodicalId":193198,"journal":{"name":"Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)","volume":"195 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122516756","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: 5
Image and video processing using MAJC 5200 图像和视频处理采用majc5200
Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101) Pub Date : 2000-09-10 DOI: 10.1109/ICIP.2000.899310
S. Sudharsanan, P. Sriram, Hans Frederickson, A. Gulati
{"title":"Image and video processing using MAJC 5200","authors":"S. Sudharsanan, P. Sriram, Hans Frederickson, A. Gulati","doi":"10.1109/ICIP.2000.899310","DOIUrl":"https://doi.org/10.1109/ICIP.2000.899310","url":null,"abstract":"The newly introduced Microprocessor Architecture for Java Computing (MAJC) supports parallelism in a hierarchy of levels: multiprocessors on chip, vertical micro threading, instruction level parallelism via a very long instruction word architecture (VLIW) and SIMD. The first implementation, MAJC 5200, includes some key features of MAJC to realize a high performance multimedia processor. Two CPUs running at 500 MHz are integrated into the chip to provide 6.16 GFLOPS and 12.33 GOPS with high speed interfaces providing a peak input-output (I/O) data rate of more than 4.8 GBytes/second. The chip is suitable for a number of applications including graphics/multimedia processing for high-end set-top boxes, digital voice processing for telecommunications, and advanced imaging.","PeriodicalId":193198,"journal":{"name":"Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122606251","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: 16
Hypercomplex color-sensitive smoothing filters 超复杂的颜色敏感平滑过滤器
Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101) Pub Date : 2000-09-10 DOI: 10.1109/ICIP.2000.901015
Carolyn J. Evans, S. Sangwine, T. Ell
{"title":"Hypercomplex color-sensitive smoothing filters","authors":"Carolyn J. Evans, S. Sangwine, T. Ell","doi":"10.1109/ICIP.2000.901015","DOIUrl":"https://doi.org/10.1109/ICIP.2000.901015","url":null,"abstract":"In this paper we present a new color-sensitive low pass filter that may he tuned to smooth the color image component in the direction of the color C/sub 1/. A new method for detecting the boundaries of C/sub 1/-colored objects using the color-sensitive smoothing filter is also presented. We demonstrate the color-sensitive smoothing filter and edge detection procedure on both synthetic and natural color images.","PeriodicalId":193198,"journal":{"name":"Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122637286","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: 41
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