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2009 International Conference on Image Analysis and Signal Processing最新文献

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Effect of navigation style and display size on navigation performance in virtual environments 虚拟环境中导航样式和显示尺寸对导航性能的影响
2009 International Conference on Image Analysis and Signal Processing Pub Date : 2009-04-11 DOI: 10.1109/IASP.2009.5054650
Wuheng Zuo, Baihua Xu, Liu Jun, Duanyang Zhao
{"title":"Effect of navigation style and display size on navigation performance in virtual environments","authors":"Wuheng Zuo, Baihua Xu, Liu Jun, Duanyang Zhao","doi":"10.1109/IASP.2009.5054650","DOIUrl":"https://doi.org/10.1109/IASP.2009.5054650","url":null,"abstract":"The effect of navigation style and display size on navigation performance was investigated when participants navigated in three-dimensional virtual mazes under different navigation aids and display size condition. The study was divided into two main phases: 1) training and 2) testing using a mock navigation task. Findings show that the combined impact of both navigation style and display size on navigation performance in virtual environments. Navigation performance was better with navigation aid under large projection display condition.","PeriodicalId":143959,"journal":{"name":"2009 International Conference on Image Analysis and Signal Processing","volume":"32 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132722475","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
A lossless compression method for JPEG based on shuffle algorithm 一种基于shuffle算法的JPEG无损压缩方法
2009 International Conference on Image Analysis and Signal Processing Pub Date : 2009-04-11 DOI: 10.1109/IASP.2009.5054622
W.Y. Wang
{"title":"A lossless compression method for JPEG based on shuffle algorithm","authors":"W.Y. Wang","doi":"10.1109/IASP.2009.5054622","DOIUrl":"https://doi.org/10.1109/IASP.2009.5054622","url":null,"abstract":"Universal lossless algorithms of data compression always have very little effect on JPEG data. According to the characteristic of JPEG, a new shuffle algorithm is proposed to resize the JPEG and then use the universal lossless algorithms to compress the resized data. Experiment has been shown that the new algorithm has an effect on lossless compression JPEG image, and has been obtained a preferable compression ratio with little time cost. The new algorithm has been protected by China patent.","PeriodicalId":143959,"journal":{"name":"2009 International Conference on Image Analysis and Signal Processing","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115798029","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
A blind digital watermarking scheme based on frame coding 一种基于帧编码的盲数字水印方案
2009 International Conference on Image Analysis and Signal Processing Pub Date : 2009-04-11 DOI: 10.1109/IASP.2009.5054619
Zhong-hai Yin, Xiang Zhou, Da-hua Gao, Yong-jun Zhou, Xin Wang
{"title":"A blind digital watermarking scheme based on frame coding","authors":"Zhong-hai Yin, Xiang Zhou, Da-hua Gao, Yong-jun Zhou, Xin Wang","doi":"10.1109/IASP.2009.5054619","DOIUrl":"https://doi.org/10.1109/IASP.2009.5054619","url":null,"abstract":"A cropping resistant blind digital watermarking scheme based on frame coding is designed. Two technologies, image confusion and frame coding, are used to deal with watermark information, which can enhance information security and bind the synchronous information with a watermark. Meanwhile, in DCT domain, an embedding strategy based on image fragmentation and the extracting strategy based on image location are offered. The experimental results show that this scheme possesses a high robustness under cropping attack. And it can effectively resist normal image disposal methods.","PeriodicalId":143959,"journal":{"name":"2009 International Conference on Image Analysis and Signal Processing","volume":"190 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114359898","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
Image segmentation based on Differential Evolution algorithm 基于差分进化算法的图像分割
2009 International Conference on Image Analysis and Signal Processing Pub Date : 2009-04-11 DOI: 10.1109/IASP.2009.5054643
Zhenkui Pei, Yanli Zhao, Zhen Liu
{"title":"Image segmentation based on Differential Evolution algorithm","authors":"Zhenkui Pei, Yanli Zhao, Zhen Liu","doi":"10.1109/IASP.2009.5054643","DOIUrl":"https://doi.org/10.1109/IASP.2009.5054643","url":null,"abstract":"Threshold segmentation is a critical technology of image segmentation. When the image is low signal-to-noise, the maximum between-cluster variance method (OTSU) cannot provide the ideal result. The 2D maximum between-cluster variance method can perform well with sharply increased computation. This work proposes a new image segmentation method based on OTSU and Differential Evolution. This solution performs a pre-processing step before the image segmentation. It is shown that Differential Evolution presents good segmentation result in noisy images. Moreover, the use of this method is easier and faster compared to the 2D maximum between-cluster variance method.","PeriodicalId":143959,"journal":{"name":"2009 International Conference on Image Analysis and Signal Processing","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125048070","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
Reverse circulation bit fluid field calculation 反循环钻头流场计算
2009 International Conference on Image Analysis and Signal Processing Pub Date : 2009-04-11 DOI: 10.1109/IASP.2009.5054580
Shu-qing Hao, K. Yin, Hong-wei Huang
{"title":"Reverse circulation bit fluid field calculation","authors":"Shu-qing Hao, K. Yin, Hong-wei Huang","doi":"10.1109/IASP.2009.5054580","DOIUrl":"https://doi.org/10.1109/IASP.2009.5054580","url":null,"abstract":"Air drive reverse circulation bit interior fluid field analysis has relied on experiments for a long time. With the development of the computer, numerical simulation and emulation software brought many advantages contrasting the experiment. However, due to the complexity of the interior fluid field, few people have done the resolution calculation for it. In this article, through simplifying the air reverse circulation bit interior fluid field character, using the air dynamics and fluid mechanics to calculate the air distribution in the bit and the mass distribution equations have been obtained. It can be shown that the simultaneous equations have a unique resolution. The article provides help for making certain the bit parameters of the bit structure effectively studies the air reverse circulation bit interior fluid field character deeply.","PeriodicalId":143959,"journal":{"name":"2009 International Conference on Image Analysis and Signal Processing","volume":"482 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129754112","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
A novel overlapping mice macrophages images segmentation method 一种新的重叠小鼠巨噬细胞图像分割方法
2009 International Conference on Image Analysis and Signal Processing Pub Date : 2009-04-11 DOI: 10.1109/IASP.2009.5054633
Ruihua Xia, Ping Wang, Wu Zhang, Qi Xiong
{"title":"A novel overlapping mice macrophages images segmentation method","authors":"Ruihua Xia, Ping Wang, Wu Zhang, Qi Xiong","doi":"10.1109/IASP.2009.5054633","DOIUrl":"https://doi.org/10.1109/IASP.2009.5054633","url":null,"abstract":"Aiming at the overlapping phenomenon that exists among the cells in the actual mice macrophages image, this paper presents the method of image segmentation based on Otsu threshold and watershed of distance transform. The image is first segmented by Otsu threshold algorithm. Then erosion and dilation morphological operators are used to get rid of noises. Finally, the watershed algorithm based on distance transform is carried out to segment the image. Experimental results show this method works successfully in the segmentation of mice macrophages microscopic images.","PeriodicalId":143959,"journal":{"name":"2009 International Conference on Image Analysis and Signal Processing","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128217685","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
Signal-to-noise ratio performance comparison of Electron Multiplying CCD and Intensified CCD detectors 电子倍增CCD与增强型CCD探测器信噪比性能比较
2009 International Conference on Image Analysis and Signal Processing Pub Date : 2009-04-11 DOI: 10.1109/IASP.2009.5054588
Wenwen Zhang, Qian Chen
{"title":"Signal-to-noise ratio performance comparison of Electron Multiplying CCD and Intensified CCD detectors","authors":"Wenwen Zhang, Qian Chen","doi":"10.1109/IASP.2009.5054588","DOIUrl":"https://doi.org/10.1109/IASP.2009.5054588","url":null,"abstract":"Basic principles of current Electron Multiplying CCD (EMCCD) and Intensified CCD (ICCD) detectors are reviewed. Based on their noise characteristics, complete signal-to-noise ratio (SNR) theoretical models are constructed for both devices. At high gain levels, we derive that an ICCD is mainly affected by photocathode noise and micro-channel plate (MCP) noise and the effective readout noise of an EMCCD is less than one electron. Therefore, we propose simplified SNR models of ICCD and EMCCD cameras. SNR performances are compared through simulations and experiments to identify the most influencing parameters. The results show that the SNR performance provided by the ICCD is constricted by photocathode quantum efficiency and noise factor of the MCP. The EMCCD is strongly influenced by thermal dark current noise which will be multiplied up along with the signal by the gain register. Thus, EMCCDs must be strongly cooled in order to get the optimum image quality. Cooled EMCCDs always outperform ICCDs.","PeriodicalId":143959,"journal":{"name":"2009 International Conference on Image Analysis and Signal Processing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130103052","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: 14
Mesh simplification based on facial features region partition 基于人脸特征区域划分的网格简化
2009 International Conference on Image Analysis and Signal Processing Pub Date : 2009-04-11 DOI: 10.1109/IASP.2009.5054636
An-Bing Wang, Bin Yu, Zhi-Jing Liu
{"title":"Mesh simplification based on facial features region partition","authors":"An-Bing Wang, Bin Yu, Zhi-Jing Liu","doi":"10.1109/IASP.2009.5054636","DOIUrl":"https://doi.org/10.1109/IASP.2009.5054636","url":null,"abstract":"This paper proposes a mesh simplification method based on facial features region partition for the special three-dimensional facial mesh model. According to distribution of feature points, the face is divided into several parts consisting of critical feature regional and non-critical feature regional. This method adjusts different areas using different curvature values. This algorithm also uses edge collapse method to reduce the density of meshes. As curvature is useful to enhance the shape description, the high details of key feature area are kept while other areas are simplified.","PeriodicalId":143959,"journal":{"name":"2009 International Conference on Image Analysis and Signal Processing","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132019946","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
Image denoising based on a new symmetrical second-generation wavelet 基于新的对称第二代小波的图像去噪
2009 International Conference on Image Analysis and Signal Processing Pub Date : 2009-04-11 DOI: 10.1109/IASP.2009.5054571
Binglian Xu, Qiusheng Zhang
{"title":"Image denoising based on a new symmetrical second-generation wavelet","authors":"Binglian Xu, Qiusheng Zhang","doi":"10.1109/IASP.2009.5054571","DOIUrl":"https://doi.org/10.1109/IASP.2009.5054571","url":null,"abstract":"A symmetrical second-generation wavelet named zzxb7.9 with two vanishing moments was constructed according to the lifting scheme introduced by Sweldens etc. and used for image denoising. Simulated noise images are used to evaluate the denoising performance of the second-generation wavelet zzxb7.9. The experimental results show that the second-generation wavelet zzxb7.9 is to be promising in image denoising because of its better performance of image denoising in terms of the signal-to-noise ratio than that produced by the classical wavelets db2, bior3.1, bior3.3, coif1 and sym2 besides its symmetry and simple construction.","PeriodicalId":143959,"journal":{"name":"2009 International Conference on Image Analysis and Signal Processing","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132317339","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
A study of pavement roughness measurement system based on laser ranger finder 基于激光测距仪的路面粗糙度测量系统研究
2009 International Conference on Image Analysis and Signal Processing Pub Date : 2009-04-11 DOI: 10.1109/IASP.2009.5054572
Zhang Yi, M. Rong-gui
{"title":"A study of pavement roughness measurement system based on laser ranger finder","authors":"Zhang Yi, M. Rong-gui","doi":"10.1109/IASP.2009.5054572","DOIUrl":"https://doi.org/10.1109/IASP.2009.5054572","url":null,"abstract":"This paper analyzes the errors caused by the present laser ranger finder in the measurement of various kinds of pavement and presents a new laser ranger finder with a symmetric and reverse structure. A new pavement roughness measurement method is then proposed based on the principle of non-inertial reference transfer. To be specific, five laser ranger finders are placed on the measuring bar, thus forming large and small step lengths with a bisymmetric structure. In this way, the equation of the height of the longitudinal pavement profile will be obtained. The results of comparison tests on various kinds of pavement with precision level indicate that the newly-invented pavement roughness measurement method can obtain accurate measurement results, unrestricted by the driving speed of the vehicle.","PeriodicalId":143959,"journal":{"name":"2009 International Conference on Image Analysis and Signal Processing","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126880989","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: 8
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