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Fourth International Conference on Image and Graphics (ICIG 2007)最新文献

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Research on Chinese Paper-cut CAD System 中国剪纸CAD系统研究
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.160
Dongmei Peng, Shouqian Sun, Lusheng Pan
{"title":"Research on Chinese Paper-cut CAD System","authors":"Dongmei Peng, Shouqian Sun, Lusheng Pan","doi":"10.1109/ICIG.2007.160","DOIUrl":"https://doi.org/10.1109/ICIG.2007.160","url":null,"abstract":"The status of the Chinese paper-cut is not optimistic. How to use the latest technology and information technology to strengthen protection of this non-material cultural heritage and its cultural existence style, which is currently the focus of our research group. We find out the most basic element symbols of paper-cut from large quantities of images, and build the paper-cut basic elements database, the paper-cut commonly used symbols database, the paper-cut images database, lay a solid foundation for innovative forms & content of paper-cut. At the same time, we probe into composition of paper-cut art design system and its function from the system design ideas and structures and how to use it to lay a good foundation for the establishment of the CAD system.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"30 5-6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120914824","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
Application of Punctured Turbo Codes in Distributed Video Coding 穿孔Turbo码在分布式视频编码中的应用
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.58
L. Qing, Xiaohai He, Rui Lv, Xiewei Deng
{"title":"Application of Punctured Turbo Codes in Distributed Video Coding","authors":"L. Qing, Xiaohai He, Rui Lv, Xiewei Deng","doi":"10.1109/ICIG.2007.58","DOIUrl":"https://doi.org/10.1109/ICIG.2007.58","url":null,"abstract":"Distributed video coding (DVC) is a new video coding paradigm derived from Slepian & Wolf's and Wyner & Ziv's information-theoretic results in 1970's. Turbo-code-based Wyner-Ziv codec provides a practical solution to lossy DVC schemes. It is able to provide good Rate distortion (DR) performance while shift complexity burden from encoder to decoder. In this paper, we proposed a pixel domain DVC system based on punctured turbo codes. The iterative decoding of turbo codes based on Maximum A Posterior (MAP) for DVC case is elaborated. Virtual channel model estimation is introduced to compute the a priori probabilities to be input to the turbo decoder. The experimental results presents significant gains compared to traditional intraframe coding paradigm. It is concluded that the proposed DVC system obtains better RD performance against previous similar works.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128991054","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 algorithm of pornographic image detection
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.40
Hong Zhu, Shuming Zhou, Jian-ying Wang, Zhongke Yin
{"title":"An algorithm of pornographic image detection","authors":"Hong Zhu, Shuming Zhou, Jian-ying Wang, Zhongke Yin","doi":"10.1109/ICIG.2007.40","DOIUrl":"https://doi.org/10.1109/ICIG.2007.40","url":null,"abstract":"Real-time detection of pornographic images can effectively prevent pornographic images from spreading on the Internet. The methods of detection mainly focus on the identification of skin region. To overcome the disadvantages of traditional algorithms, in this paper, we propose a skin model based on the combination of YIQ, YUV, and HSV. In the step of the pre-dealing, we use white balance algorithm to achieve better skin area. Then, texture model based on Gray Level Co-Matrix (GLCM) and geometric structure of human beings are used to decrease the disruptions of the background region similar with the skin area. The features which extracted from the last images dealt by color and texture model are input into Support Vector Machines (SVM), through which the pornographic images and assorted control images are classified successfully. An experiment using 400 pornographic images and 400 assorted control images is carried out. Experimental results show that the algorithm of skin texture- based and feather-based detection has perfect performances, and the detection rate can reach 88.89%.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130591123","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: 54
Cast Shadow and Reflection Image Suppressing of Dynamic Object Segmentation with Edge Features Kernel Density Estimation 基于边缘特征核密度估计的动态目标分割投影和反射图像抑制
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.67
Zheng Li, S. Zhang, Hong Ma, Jian Yang, DongMing Tang
{"title":"Cast Shadow and Reflection Image Suppressing of Dynamic Object Segmentation with Edge Features Kernel Density Estimation","authors":"Zheng Li, S. Zhang, Hong Ma, Jian Yang, DongMing Tang","doi":"10.1109/ICIG.2007.67","DOIUrl":"https://doi.org/10.1109/ICIG.2007.67","url":null,"abstract":"In image analysis or vision understanding systems, the accuracy of segmentation results affects the quality of the systems seriously. The dynamic cast shadows and reflection images are ever-present fake objects in dynamic object segmentation, and they deteriorate the segmentation quality seriously. This paper presents a technique for cast shadow and reflection image suppressing of dynamic objects segmentation in videos. This technique is based on dynamic edge features and kernel density estimation. Unlike the classic kernel density estimation model which can only suppress cast shadows in color videos, this model can also suppress them in intensity videos, and with normal conditions it can suppress reflection images effectively. Although this technique introduces a little drawback of true object segmentation quality, its ability of fake objects suppressing is remarkable. Several experimental results with real videos are presented to demonstrate the effectiveness of this model.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"161 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114333223","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
Wavelet Denoising by Quantum Threshold Algorithm 基于量子阈值算法的小波去噪
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.188
Peng Wang, Jian-Ping Li
{"title":"Wavelet Denoising by Quantum Threshold Algorithm","authors":"Peng Wang, Jian-Ping Li","doi":"10.1109/ICIG.2007.188","DOIUrl":"https://doi.org/10.1109/ICIG.2007.188","url":null,"abstract":"Quantum threshold algorithm is proposed to reduce the noise of signal. Quantum superposition principle is used to construct noise model in wavelet domain. We consider that signal is quasi quantum system. Every wavelet coefficient belongs to a superposition state. We don 't know whether it belongs signal or noise until we measure it. Unlike hard threshold algorithm quantum threshold algorithm hasn't a certain threshold. The probability that a wavelet coefficient belongs to signal or noise is decided by a distribution function. Finally, several experiments are made to compare the proposed method with conventional hard threshold algorithm. The pseudo-Gibbs phenomena can be reduced by this algorithm.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"10 40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127780106","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 Fast and Accurate Moving Object Extraction Scheme in the MPEG Compressed Domain 一种快速准确的MPEG压缩域运动目标提取方法
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.7
Zhou Qi-ya, Yang Gaobo, Chen Weiwei, Z. Zhaoyang
{"title":"A Fast and Accurate Moving Object Extraction Scheme in the MPEG Compressed Domain","authors":"Zhou Qi-ya, Yang Gaobo, Chen Weiwei, Z. Zhaoyang","doi":"10.1109/ICIG.2007.7","DOIUrl":"https://doi.org/10.1109/ICIG.2007.7","url":null,"abstract":"The hot topic of moving object extraction has been transferred from the pixel domain to directly from the compressed stream. The existed work of compressed-domain moving object extraction in the literature usually can meet the requirement of real-time performance. However, the accuracy of extracted objects is too coarse. The reason is that the information utilized in the compressed-domain extraction process is not abundant and noisy. In order to solve this problem, a novel moving object extraction scheme with high accuracy for MPEG stream is proposed. Firstly, the contour-feature and motion vector based projection are fused to extract the coarse object in an efficient way. Second, the blocks in I frame are partially decoded to improve the segmentation accuracy. The innovation lies in a threshold method of image segmentation with automatic seeding is applied on the DC+2AC image of I frame to extract the contour-feature, which is combined with the projection of motion vector field of P frame to complete the coarse segmentation. Then tradeoff is made between the executive time and results' accuracy. High accuracy is acquired at the cost of partially decoding time and region-growing processing time, which is worthwhile at the expense of such a little more time to refine the result. Experiments reveal that the proposed algorithm has the attributes of both real-time and high accuracy at the same time.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"245 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133675731","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
A Space Efficient Clustered Visualization of Large Graphs 大型图的空间高效聚类可视化
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.31
M. Huang, Quang Vinh Nguyen
{"title":"A Space Efficient Clustered Visualization of Large Graphs","authors":"M. Huang, Quang Vinh Nguyen","doi":"10.1109/ICIG.2007.31","DOIUrl":"https://doi.org/10.1109/ICIG.2007.31","url":null,"abstract":"This paper proposes a new technique for visualizing large graphs of several ten thousands of vertices and edges. To achieve the graph abstraction, a hierarchical clustered graph is extracted from a general large graph based on the community structures which are discovered in the graph. An enclosure geometrical partitioning algorithm is then applied to achieve the space optimization. For graph drawing, we technically use the combination of a spring-embbeder algorithm and circular drawings that archives the goal of optimization of display space and aesthetical niceness. We also discuss an associated interaction mechanism accompanied with the layout solution. Our interaction not only allows users to navigate hierarchically up and down through the entire clustered graph, but also provides a way to navigate multiple clusters concurrently. Animation is also implemented to preserve users' mental maps during the interaction.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127061112","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: 31
Salient Moving Object Detection Using Stochastic Approach Filtering 基于随机滤波的显著运动目标检测
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.166
Peng Tang, Lin Gao, Zhifang Liu
{"title":"Salient Moving Object Detection Using Stochastic Approach Filtering","authors":"Peng Tang, Lin Gao, Zhifang Liu","doi":"10.1109/ICIG.2007.166","DOIUrl":"https://doi.org/10.1109/ICIG.2007.166","url":null,"abstract":"Background modeling techniques are important for object detection and tracking in video surveillance. Traditional background subtraction approaches are suffered from problems, such as persistent dynamic backgrounds, quick illumination changes, occlusions, noise etc. In this paper, we address the problem of detection and localization of moving objects in a video stream without apperception of background statistics. Three major contributions are presented. First, introducing the Monte Carlo importance sampling techniques greatly reduce the computation complexity while compromise the expected accuracy. Second, the robust salient motion is considered when resampling the feature points by removing those who do not move in a relative constant velocity. Finally, the proposed spatial kinetic mixture of Gaussian model (SKMGM) enforced spatial consistency. Promising results demonstrate the potentials of the proposed framework.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115519278","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: 30
Hand Gesture Recognition Using Fast Multi-scale Analysis 基于快速多尺度分析的手势识别
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.105
Yikai Fang, Jian Cheng, Kongqiao Wang, Hanqing Lu
{"title":"Hand Gesture Recognition Using Fast Multi-scale Analysis","authors":"Yikai Fang, Jian Cheng, Kongqiao Wang, Hanqing Lu","doi":"10.1109/ICIG.2007.105","DOIUrl":"https://doi.org/10.1109/ICIG.2007.105","url":null,"abstract":"Hand gesture has been used as a natural and efficient way in human computer interaction. Due to independence of auxiliary input devices, vision-based hand interfaces is more favorable for users. However, the process of hand gesture recognition is very time consuming, which often brings much frustration to users. In this paper, we propose a fast feature detection and description approach which can significantly speed up hand gesture recognition. Firstly, integral image is used to approximate Gaussian derivatives to calculate image convolution in feature detection. Then multi-scale geometric descriptors at feature points are obtained to represent hand gestures. Finally gesture is recognized with its geometric configuration. Experiments show that the proposed method needs much less time consumption while obtains comparative performance with its counterpart in literatures.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115684452","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: 36
Gaze Direction Estimation Based on Natural Head Movements 基于自然头部运动的凝视方向估计
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.102
Jing Xie, X. Lin
{"title":"Gaze Direction Estimation Based on Natural Head Movements","authors":"Jing Xie, X. Lin","doi":"10.1109/ICIG.2007.102","DOIUrl":"https://doi.org/10.1109/ICIG.2007.102","url":null,"abstract":"In this paper, we present a new approach for estimating head pose and gaze direction under a monocular vision. The human visual line-of-sight consists of two components: the pose of head and the orientation of eyes within their sockets. First we compute the head pose of a user, and then calculate the gaze direction from the relative positions of the iris and the inner eye corner. The experimental results show that under natural head movements (yaw and pitch angles of head in real image sequences are up to 30deg and 20deg, respectively), our method achieves an average deviation to 2deg and 4deg in azimuth and elevation angles respectively.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"406 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114766485","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
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