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International Conference on Information Photonics最新文献

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Pnoramic mosaic system for mobile devices 移动设备动态镶嵌系统
International Conference on Information Photonics Pub Date : 2008-12-12 DOI: 10.1109/ICIP.2008.4712023
S. Ha, Sang Hwa Lee, Y. Ahn, N. Cho
{"title":"Pnoramic mosaic system for mobile devices","authors":"S. Ha, Sang Hwa Lee, Y. Ahn, N. Cho","doi":"10.1109/ICIP.2008.4712023","DOIUrl":"https://doi.org/10.1109/ICIP.2008.4712023","url":null,"abstract":"This paper deals with a panoramic mosaic system for mobile devices. The proposed system is optimized for mobile devices by integer-programmable algorithms and auto-shot user interface. The proposed system consists of auto-shot interface, transform onto cylindrical surface, color compensation, local alignment, image stitching, and blending. The auto-shot interface senses user's camera motion and takes pictures when the camera motion is matched to the predefined motion model. The captured images are projected onto a cylindrical mosaic surface by modified projection equation. Exposure difference is removed by color compensation, where the luminance differences between images are adjusted and color saturation is eliminated. The projected images are locally aligned by fast hierarchical hexagonal search technique. Then, the optimal boundary of overlapped images are determined using dynamic programming and synthesized seamlessly. According to the experiments using mobile devices, the proposed system shows good performance compared with other PC-based mosaic algorithms.","PeriodicalId":147245,"journal":{"name":"International Conference on Information Photonics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129918593","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
Pathological Motion Detection for Robust Missing Data Treatment in Degraded Archived Media 退化归档介质中鲁棒缺失数据处理的病理运动检测
International Conference on Information Photonics Pub Date : 2006-10-01 DOI: 10.1109/ICIP.2006.312412
D. Corrigan, N. Harte, A. Kokaram
{"title":"Pathological Motion Detection for Robust Missing Data Treatment in Degraded Archived Media","authors":"D. Corrigan, N. Harte, A. Kokaram","doi":"10.1109/ICIP.2006.312412","DOIUrl":"https://doi.org/10.1109/ICIP.2006.312412","url":null,"abstract":"This paper outlines an algorithm to improve the robustness of missing data treatment to pathological motion (PM). PM can cause misdiagnosis of clean image data as missing data. The proposed algorithm uses a probabilistic framework to jointly detect PM and missing data by exploiting more temporal information than is typically used for missing data detection and by exploiting the local smoothness assumption of motion fields. The results of the framework are compared to an equivalent missing data detector without PM detection and the framework is shown to prevent the misdiagnosis of missing data due to PM.","PeriodicalId":147245,"journal":{"name":"International Conference on Information Photonics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129306760","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
Bayesian Estimation of Common Areas in Multi-Camera Systems 多摄像机系统中公共区域的贝叶斯估计
International Conference on Information Photonics Pub Date : 2006-10-01 DOI: 10.1109/ICIP.2006.312734
Z. Szlávik, T. Szirányi
{"title":"Bayesian Estimation of Common Areas in Multi-Camera Systems","authors":"Z. Szlávik, T. Szirányi","doi":"10.1109/ICIP.2006.312734","DOIUrl":"https://doi.org/10.1109/ICIP.2006.312734","url":null,"abstract":"In the paper a new Bayesian method is presented for the automatic extraction of common areas of images in multi-camera systems through the detection of concurrently changing pixels. Unlike existing still-image and motion-based methods our approach does not need any a priori information about the scene, the appearance of objects in the scene, or their motion. The method is validated by demonstrating its successful use on several real-life outdoor stereo video image-sequence pairs.","PeriodicalId":147245,"journal":{"name":"International Conference on Information Photonics","volume":"501 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122362739","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
Pre-Processing for MRC Layers of Scanned Images 扫描图像的MRC层预处理
International Conference on Information Photonics Pub Date : 2006-10-01 DOI: 10.1109/ICIP.2006.313094
R. Queiroz
{"title":"Pre-Processing for MRC Layers of Scanned Images","authors":"R. Queiroz","doi":"10.1109/ICIP.2006.313094","DOIUrl":"https://doi.org/10.1109/ICIP.2006.313094","url":null,"abstract":"The mixed raster content (MRC) imaging model represents compound images as a superposition of layers. The model is very efficient for representing sharp text and graphics onto a background, but, since the mask layer is binary, it is difficult to deal with scanned data and soft edges. The edge transitions don't fully belong to the foreground neither to the background, and cause some \"halo\" to the object edges using the MRC model. We present a method to detect segmented soft edges and a method to correct and sharpen the image within the MRC model. An improved data filling algorithm for the redundant regions is also presented. The original \"softness\" and relative position of the edges are estimated and we present a method to attempt to recreate the edge softness effect at the decoder.","PeriodicalId":147245,"journal":{"name":"International Conference on Information Photonics","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123315428","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
A probabilistic living cell segmentation model 一个概率活细胞分割模型
International Conference on Information Photonics Pub Date : 2005-11-14 DOI: 10.1109/ICIP.2005.1529956
N. Nezamoddini-Kachouie, Leo J. Lee, P. Fieguth
{"title":"A probabilistic living cell segmentation model","authors":"N. Nezamoddini-Kachouie, Leo J. Lee, P. Fieguth","doi":"10.1109/ICIP.2005.1529956","DOIUrl":"https://doi.org/10.1109/ICIP.2005.1529956","url":null,"abstract":"A better understanding of cell behavior is very important in drug and disease research. Cell size, shape, and motility may play a key role in stem-cell specialization or cancer development. However the traditional method of inferring these values from image sequences manually is such an onerous task that automated methods of cell tracking and segmentation are in high demanded, especially given the increasing amount of cell data being collected. In this paper, a novel probabilistic cell model is designed to segment the individual hematopoietic stem cells (HSCs) extracted from mice bone marrow cells. The proposed cell model has been successfully applied to HSC segmentation, identifying the most probable cell locations in the image on the basis of cell brightness and morphology.","PeriodicalId":147245,"journal":{"name":"International Conference on Information Photonics","volume":"267 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134018471","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: 21
Fourier transform for the spatial quincunx lattice 空间五方阵的傅里叶变换
International Conference on Information Photonics Pub Date : 2005-11-14 DOI: 10.1109/ICIP.2005.1530100
Markus Püschel, M. Rötteler
{"title":"Fourier transform for the spatial quincunx lattice","authors":"Markus Püschel, M. Rötteler","doi":"10.1109/ICIP.2005.1530100","DOIUrl":"https://doi.org/10.1109/ICIP.2005.1530100","url":null,"abstract":"We derive a new, two-dimensional nonseparable signal transform for computing the spectrum of spatial signals residing on a finite quincunx lattice. The derivation uses the connection between transforms and polynomial algebras, which has long been known for the discrete Fourier transform (DFT), and was extended to other transforms in recent research. We also show that the new transform can be computed with O(n/sup 2/ log(n)) operations, which puts it in the same complexity class as its separable counterparts.","PeriodicalId":147245,"journal":{"name":"International Conference on Information Photonics","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114663628","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: 10
Image intrinsic values from shading information 图像的内在价值来源于阴影信息
International Conference on Information Photonics Pub Date : 2005-11-14 DOI: 10.1109/ICIP.2005.1530268
M. El-Melegy
{"title":"Image intrinsic values from shading information","authors":"M. El-Melegy","doi":"10.1109/ICIP.2005.1530268","DOIUrl":"https://doi.org/10.1109/ICIP.2005.1530268","url":null,"abstract":"Since the pioneer work of Horn, a considerable amount of computer vision research has been done on shape from shading (SFS). The basic idea of SFS is to infer the shape of an object from its shading information in a single image. Since this problem is ill-posed, a number of assumptions have been used extensively in the computer vision community for the SFS problem, such as orthographic projection, Lambertian reflectance model, single light source, and constant surface albedo. In this paper, starting with this typical set of assumptions, we derive new image intrinsic values based on image shading information. We derive these values for a number of reflectance models such as the linear and quadratic models in addition to the popular Lambertian model. We validated the obtained intrinsic values on hundreds of real and synthetic images.","PeriodicalId":147245,"journal":{"name":"International Conference on Information Photonics","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126489358","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
Improved macroblock-based reverse play algorithm for MPEG video streaming 改进的基于宏块的MPEG视频流倒放算法
International Conference on Information Photonics Pub Date : 2004-10-24 DOI: 10.1109/ICIP.2004.1421490
C. Fu, Yui-Lam Chan, W. Siu
{"title":"Improved macroblock-based reverse play algorithm for MPEG video streaming","authors":"C. Fu, Yui-Lam Chan, W. Siu","doi":"10.1109/ICIP.2004.1421490","DOIUrl":"https://doi.org/10.1109/ICIP.2004.1421490","url":null,"abstract":"Reverse playback is the most common video cassette recording (VCR) functions in many digital video players. However, the predictive processing techniques employed in MPEG severely complicate the reverse-play operation. In this paper, we enhance our previously proposed compressed-domain approach for the efficient reverse-play operation of an MPEG video streaming system. In the proposed video streaming server, a novel macroblock-based algorithm is used to adaptively select the necessary macroblocks, manipulate the macroblocks and send the processed macroblocks to the client machine. The proposed approach only manipulates macroblocks either on the VLC-domain or DCT-domain to achieve the server with low complexity. Experimental results show that, as compared to the conventional system and the previously proposed compressed-domain system, the new streaming system reduces the required network bandwidth and the decoding complexity significantly.","PeriodicalId":147245,"journal":{"name":"International Conference on Information Photonics","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123325470","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
Noise reduction and interlaced-to-progressive conversion based on optimal adaptation 基于最优自适应的降噪与交错进行转换
International Conference on Information Photonics Pub Date : 2004-10-24 DOI: 10.1109/ICIP.2004.1421386
Seungjoon Yang, Jae-Han Jung, You-Young Jung
{"title":"Noise reduction and interlaced-to-progressive conversion based on optimal adaptation","authors":"Seungjoon Yang, Jae-Han Jung, You-Young Jung","doi":"10.1109/ICIP.2004.1421386","DOIUrl":"https://doi.org/10.1109/ICIP.2004.1421386","url":null,"abstract":"This paper prcscnts an adaptation scheme for noise reduction (NK) and interlaced-to-progressive conversion (IPC) based on the optimal filter theory. The p~oposcd adaptation scheme pi-ovides effective removal of noise and high quality conversion with considerably less flicker. NK and IPC are combined together so that NK helps the proper operation of IPC, whilc sharing resources and informations.","PeriodicalId":147245,"journal":{"name":"International Conference on Information Photonics","volume":"216 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129445671","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
Data hiding in JPEG 2000 code streams 数据隐藏在JPEG 2000代码流
International Conference on Information Photonics Pub Date : 2004-10-24 DOI: 10.1109/ICIP.2004.1421363
Wei Liu
{"title":"Data hiding in JPEG 2000 code streams","authors":"Wei Liu","doi":"10.1109/ICIP.2004.1421363","DOIUrl":"https://doi.org/10.1109/ICIP.2004.1421363","url":null,"abstract":"In this research, the issue of integrated data hiding and JPEG 2000 [Mar 2000, Dec 2000] image compression is investigated and a data-hiding scheme is proposed to embed covert messages into JPEG 2000 code streams. With the introduction of visual masking measurement and CSF weighting, visual distortion is very slight even though a large amount of data is embedded. The extraction of hidden data can be performed progressively at the decoder. Experimental results are given finally to show the performance of the proposed scheme.","PeriodicalId":147245,"journal":{"name":"International Conference on Information Photonics","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125855885","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: 10
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