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Proceedings of 3rd IEEE International Conference on Image Processing最新文献

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Reducing the precision/uncertainty duality in the Hough transform 降低霍夫变换的精度/不确定性对偶性
Proceedings of 3rd IEEE International Conference on Image Processing Pub Date : 1996-09-16 DOI: 10.1109/ICIP.1996.561066
O. Strauss
{"title":"Reducing the precision/uncertainty duality in the Hough transform","authors":"O. Strauss","doi":"10.1109/ICIP.1996.561066","DOIUrl":"https://doi.org/10.1109/ICIP.1996.561066","url":null,"abstract":"The Hough transform is a popular method for detecting complex forms in digital images. However, the technique is not very robust since several parameters that determine the scope of the detection results, such as quantization thresholds and intervals, must first be defined. In the present paper, we propose to enhance shape detection with the Hough transform through fuzzy analysis. One chief drawback of the Hough transform, i.e. the uncertainty/precision duality, is thus reduced.","PeriodicalId":192947,"journal":{"name":"Proceedings of 3rd IEEE International Conference on Image Processing","volume":"319 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116366403","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
Dual domain interactive image restoration: basic algorithm 双域交互式图像恢复:基本算法
Proceedings of 3rd IEEE International Conference on Image Processing Pub Date : 1996-09-16 DOI: 10.1109/ICIP.1996.559619
A. N. Hirani, T. Totsuka
{"title":"Dual domain interactive image restoration: basic algorithm","authors":"A. N. Hirani, T. Totsuka","doi":"10.1109/ICIP.1996.559619","DOIUrl":"https://doi.org/10.1109/ICIP.1996.559619","url":null,"abstract":"This paper describes a new fast, iterative algorithm for interactive image noise removal. Given the locations of noisy pixels and a prototype image, the noisy pixels are to be restored in a natural way. Most existing image noise removal algorithms use either frequency domain information (e.g. low pass filtering) or spatial domain information (e.g median filtering or stochastic texture generation). However, for good noise removal, both spatial and frequency information must be used. The existing algorithms that do combine the two domains (e.g. Gerchberg-Papoulis and related algorithms) place the limitation that the image be band-limited and the band limits be known. Also, some of these may not work well when the noisy pixels are contiguous and numerous. Our algorithm combines the spatial and frequency domain information by using projection onto convex sets (POCS). But unlike previous methods it does not need to know image band limits and does not require the image to be band-limited. Results given here show noise removal from images with texture and prominent lines. The detailed textures as well as the pixels representing prominent lines are created by our algorithm for the noise pixels. The algorithm is fast, the cost being a few iterations (usually under 10), each requiring an FFT, IFFT and copying of a small neighborhood of the noise.","PeriodicalId":192947,"journal":{"name":"Proceedings of 3rd IEEE International Conference on Image Processing","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116378900","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
Automatic inspection of solder joints using layered illumination 使用分层照明自动检查焊点
Proceedings of 3rd IEEE International Conference on Image Processing Pub Date : 1996-09-16 DOI: 10.1109/ICIP.1996.560960
Tae-Hyeon Kim, Tai-Hoon Cho, Y. Moon, Sung-Han Park
{"title":"Automatic inspection of solder joints using layered illumination","authors":"Tae-Hyeon Kim, Tai-Hoon Cho, Y. Moon, Sung-Han Park","doi":"10.1109/ICIP.1996.560960","DOIUrl":"https://doi.org/10.1109/ICIP.1996.560960","url":null,"abstract":"Efficient techniques for solder joint inspection are described. Using three layers of ring shaped LEDs with different illumination angles, three frames of images are sequentially obtained. From these images the regions of interest (soldered regions) are segmented, and their characteristic features including the average gray level and the number of highlights-referred to as 2D features-are extracted. Based on the minimum distance classification rule, each solder joint is classified into one of the pre-defined types. If the classification is ambiguous, the distribution of tilt angles-referred to as 3D features-is calculated, which requires more computation while providing more information and better performance. The proposed inspection system has been implemented and tested with various types of solder joints in SMDs. The experimental results have verified the validity of this scheme in terms of speed and recognition rate.","PeriodicalId":192947,"journal":{"name":"Proceedings of 3rd IEEE International Conference on Image Processing","volume":"62 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123232694","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
Education in image sciences and engineering at the Technion 以色列理工学院的图像科学和工程教育
Proceedings of 3rd IEEE International Conference on Image Processing Pub Date : 1996-09-16 DOI: 10.1109/ICIP.1996.559529
M. Lindenbaum, Y. Zeevi
{"title":"Education in image sciences and engineering at the Technion","authors":"M. Lindenbaum, Y. Zeevi","doi":"10.1109/ICIP.1996.559529","DOIUrl":"https://doi.org/10.1109/ICIP.1996.559529","url":null,"abstract":"The departments of electrical engineering and computer science at Technion offer a broad spectrum of courses in digital and optical signals and imaging systems, and a research environment most suitable for specialization in image system engineering. We describe a few of the courses and discuss some issues related to their teaching.","PeriodicalId":192947,"journal":{"name":"Proceedings of 3rd IEEE International Conference on Image Processing","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123544070","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
Content-based retrieval of ophthalmological images 基于内容的眼科图像检索
Proceedings of 3rd IEEE International Conference on Image Processing Pub Date : 1996-09-16 DOI: 10.1109/ICIP.1996.560765
Amarnath Gupta, S. Moezzi, Adam L. Taylor, S. Chatterjee, R. Jain, M. Goldbaum, S. Burgess
{"title":"Content-based retrieval of ophthalmological images","authors":"Amarnath Gupta, S. Moezzi, Adam L. Taylor, S. Chatterjee, R. Jain, M. Goldbaum, S. Burgess","doi":"10.1109/ICIP.1996.560765","DOIUrl":"https://doi.org/10.1109/ICIP.1996.560765","url":null,"abstract":"This paper describes steps towards an information system for the storage and content-based retrieval of ocular fundus images. Based on the Virage Incorporated framework for defining similarity metrics, the authors have developed a number of primitives for the representation of ocular fundus images. A prototype Query By Pictorial Example (QBPE) system yields similarity rankings in approximate agreement with those of a human expert.","PeriodicalId":192947,"journal":{"name":"Proceedings of 3rd IEEE International Conference on Image Processing","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123659276","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
Video transmission technology with effective error protection and tough synchronization for wireless channels 具有有效的差错保护和高同步的无线信道视频传输技术
Proceedings of 3rd IEEE International Conference on Image Processing Pub Date : 1996-09-16 DOI: 10.1109/ICIP.1996.560612
T. Kawahara, S. Adachi
{"title":"Video transmission technology with effective error protection and tough synchronization for wireless channels","authors":"T. Kawahara, S. Adachi","doi":"10.1109/ICIP.1996.560612","DOIUrl":"https://doi.org/10.1109/ICIP.1996.560612","url":null,"abstract":"Video transmission over error-prone mobile communication channels requires higher error resiliency than required in other channels. However, most video coding schemes utilize some form of variable length data structure in order to achieve high coding efficiency, and this can result in large drops in transmission quality in mobile channels due to loss of data structure synchronization or variable length code synchronization. We propose priority-based re-ordering technology for error control and tough synchronization (PROTECTS). This scheme offers good synchronization characteristics, and an efficient unequal error protection technique for variable length codes. The outline of the PROTECTS and some simulation results are presented in this paper.","PeriodicalId":192947,"journal":{"name":"Proceedings of 3rd IEEE International Conference on Image Processing","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121892707","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: 18
Multiscale shape analysis using the continuous wavelet transform 基于连续小波变换的多尺度形状分析
Proceedings of 3rd IEEE International Conference on Image Processing Pub Date : 1996-09-16 DOI: 10.1109/ICIP.1996.559490
J. Antoine, D. Barache, R. M. C. Junior, L. Costa
{"title":"Multiscale shape analysis using the continuous wavelet transform","authors":"J. Antoine, D. Barache, R. M. C. Junior, L. Costa","doi":"10.1109/ICIP.1996.559490","DOIUrl":"https://doi.org/10.1109/ICIP.1996.559490","url":null,"abstract":"We present a new approach to shape representation and analysis, which consists in treating the contour of a 2D shape as an 1D signal and analyzing it with the 1D continuous wavelet transform. Application is made to the detection of corners, natural scales and fractal behavior in 2D shapes.","PeriodicalId":192947,"journal":{"name":"Proceedings of 3rd IEEE International Conference on Image Processing","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122063265","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: 17
Morphing of 2-D models by Fresnel transform 用菲涅耳变换变换二维模型
Proceedings of 3rd IEEE International Conference on Image Processing Pub Date : 1996-09-16 DOI: 10.1109/ICIP.1996.560790
Y. Aoki, S. Kang
{"title":"Morphing of 2-D models by Fresnel transform","authors":"Y. Aoki, S. Kang","doi":"10.1109/ICIP.1996.560790","DOIUrl":"https://doi.org/10.1109/ICIP.1996.560790","url":null,"abstract":"A new morphing technique is proposed, where two two-dimensional (2-D) models are Fresnel-transformed and intensities of the transformed patterns are superposed and clipped, resulting in a blending pattern of two models. Since the Fresnel transform depends upon the distance parameter between the model and the Fresnel-transformed planes, the morphing process from one model to another is observed by changing the distance parameter. The morphing experiment was conducted using 2-D models, such as letters and simple figures by performing Fresnel transforms with 32/spl times/32 sampling points. Discussion is done by comparing the proposed morphing technique with a morphing technique using Fourier transform, where model spectra are superposed in the spectrum plane using a weighting factor to blend the spectra of both models proportional to the weighting factor, whereas phase functions are multiplied on the Fourier transforms of models in the Fresnel transform method.","PeriodicalId":192947,"journal":{"name":"Proceedings of 3rd IEEE International Conference on Image Processing","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117084180","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
Lossless acceleration of fractal image compression by fast convolution 基于快速卷积的分形图像压缩无损加速
Proceedings of 3rd IEEE International Conference on Image Processing Pub Date : 1996-09-16 DOI: 10.1109/ICIP.1996.559464
D. Saupe, H. Hartenstein
{"title":"Lossless acceleration of fractal image compression by fast convolution","authors":"D. Saupe, H. Hartenstein","doi":"10.1109/ICIP.1996.559464","DOIUrl":"https://doi.org/10.1109/ICIP.1996.559464","url":null,"abstract":"In fractal image compression the encoding step is computationally expensive. We present a new technique for reducing the computational complexity. It is lossless, i.e., it does not sacrifice any image quality for the sake of the speedup. It is based on a codebook coherence characteristic to fractal image compression and leads to a novel application of the fast Fourier transform-based convolution. The method provides a new conceptual view of fractal image compression. This paper focuses on the implementation issues and presents the first empirical experiments analyzing the performance benefits of the convolution approach to fractal image compression depending on image size, range size, and codebook size. The results show acceleration factors for large ranges up to 23 (larger factors possible), outperforming all other currently known lossless acceleration methods for such range sizes.","PeriodicalId":192947,"journal":{"name":"Proceedings of 3rd IEEE International Conference on Image Processing","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125884551","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: 34
Stable and efficient shift-variant algorithm for circle-plus-lines orbits in cone-beam CT 锥束CT中圆加线轨道稳定高效的移位变算法
Proceedings of 3rd IEEE International Conference on Image Processing Pub Date : 1996-09-16 DOI: 10.1109/ICIP.1996.560551
F. Noo, M. Defrise, R. Clackdoyle, E. J. Roney, T. White, S. Galbraith
{"title":"Stable and efficient shift-variant algorithm for circle-plus-lines orbits in cone-beam CT","authors":"F. Noo, M. Defrise, R. Clackdoyle, E. J. Roney, T. White, S. Galbraith","doi":"10.1109/ICIP.1996.560551","DOIUrl":"https://doi.org/10.1109/ICIP.1996.560551","url":null,"abstract":"Defrise and Clack (see IEEE Trans. Med. Imag., vol.13, p.186-95, 1994) , and also Kudo and Saito (see IEEE Trans. Med. Imag., vol.13, p.196-211, 1994), have derived an exact algorithm suited to accurately reconstruct cone-beam data acquired from any complete orbit. These algorithms are written in the form of a shift-variant filtered backprojection. Their main characteristic is their capability to handle in many different ways the redundancy inherent to cone-beam data sets. We investigate the interplay between the redundancy handling and the stability and efficiency of the algorithm. Specifically, we show how to handle the redundancy to turn shift-variant filtering of some projections into shift-invariant filtering. Invoking this result, we define then a new algorithm suited to accurately and efficiently reconstruct data acquired from circle-plus-lines orbits. The new algorithm is tested on simulated data and real data from industrial imaging of waste containers.","PeriodicalId":192947,"journal":{"name":"Proceedings of 3rd IEEE International Conference on Image Processing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126146722","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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