发布求助
文献互助 智能选刊 最新文献

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

筛选
英文 中文
A Steganographic Algorithm in Uncompressed Video Sequence Based on Difference between Adjacent Frames 基于相邻帧差的未压缩视频序列隐写算法
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.32
Changyong Xu, X. Ping
{"title":"A Steganographic Algorithm in Uncompressed Video Sequence Based on Difference between Adjacent Frames","authors":"Changyong Xu, X. Ping","doi":"10.1109/ICIG.2007.32","DOIUrl":"https://doi.org/10.1109/ICIG.2007.32","url":null,"abstract":"A steganographic algorithm for embedding secret bits into uncompressed video sequence was proposed in this paper. The difference between adjacent frames, which is called motion component, indicates the motion of video, and is not obviously affected by video compression. So motion component was used to embed secret bits for increasing the capability of resisting video compression. Motion component was firstly calculated on a frame by frame basis, and then it was two-level wavelet decomposed, and the secret bits were embedded into wavelet coefficients. For the purpose of little degrading video quality, the secret bits were only embedded into low frequency coefficients that within the region which has large moving speed. Experimental results show that the proposed algorithm not only can keep a good visual and statistical imperceptibility, but also has a considerable embedding capacity. Moreover, the algorithm has a good flexibility to MPEG encoding. Even after MPEG encoding, the secret bits can be extracted with a high accuracy.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"24 2 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":"131407816","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: 13
Extracting Hand Vein Patterns from Low-Quality Images: A New Biometric Technique Using Low-Cost Devices 从低质量图像中提取手静脉模式:一种使用低成本设备的新生物识别技术
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.87
Shi Zhao, Yiding Wang, Yunhong Wang
{"title":"Extracting Hand Vein Patterns from Low-Quality Images: A New Biometric Technique Using Low-Cost Devices","authors":"Shi Zhao, Yiding Wang, Yunhong Wang","doi":"10.1109/ICIG.2007.87","DOIUrl":"https://doi.org/10.1109/ICIG.2007.87","url":null,"abstract":"A new biometric technique using hand-dorsa vein patterns attracted attention these years. In this technique, extracting vein structures is a key procedure. For conventional algorithm, it is necessary to use high-quality images, which demand high-priced collection devices. That is because vein pattern images usually have low contrast, high-quality images are proper for segment. In our research, an extracting method for low-quality image is presented. The proposed method makes using low-cost devices possible. The results show that we could extract the vein networks as successfully as using high-quality images. In this paper, the principle of vein imaging is discussed, a new method to acquire vein images, which could enhance the contrast, is proposed, and the algorithm of extracting the vein pattern from low quality images is put forward. Our innovations are designing a new method to obtain good contrast vein images and proposing a novel denoising algorithm.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"42 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":"132750747","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: 77
A New Auto-focusing Method Based on the Center Blocking DCT 一种基于中心块DCT的自动对焦方法
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.19
Quan Feng, Ke Han, X. Zhu
{"title":"A New Auto-focusing Method Based on the Center Blocking DCT","authors":"Quan Feng, Ke Han, X. Zhu","doi":"10.1109/ICIG.2007.19","DOIUrl":"https://doi.org/10.1109/ICIG.2007.19","url":null,"abstract":"First, this paper analyses the imaging relations of the lens system and the properties of image clarity evaluation function under the condition where the object distances of many objects are different. Then, a center window method is employed to stand out the interesting objects. Finally, the image clarity evaluation function based on the center blocking DCT (discrete cosine transform / DCT) method is proposed for evaluating the image clarity in this paper. Experimental results indicate that the proposed method can effectively focus the images both under long-short-object-distance situation and under long-object-distance situation.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"59 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":"133227321","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
Fast Human Detection by Boosting Histograms of Oriented Gradients 增强定向梯度直方图的快速人体检测
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.91
Hui-Xing Jia, Yujin Zhang
{"title":"Fast Human Detection by Boosting Histograms of Oriented Gradients","authors":"Hui-Xing Jia, Yujin Zhang","doi":"10.1109/ICIG.2007.91","DOIUrl":"https://doi.org/10.1109/ICIG.2007.91","url":null,"abstract":"In this paper, a novel real-time human detection system based on Viola's face detection framework and Histograms of Oriented Gradients (HOG) features is presented. Each bin of the histogram is treated as a feature and used as the basic building element of the cascade classifier. The system keeps both the discriminative power of HOG features for human detection and the real-time property of Viola's face detection framework. Experiments on Daimler Chrysler pedestrian benchmark data set and INRIA human database demonstrate that this framework is more powerful than Viola's object detection framework on human detection.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"68 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":"133488525","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: 70
Automatic Video Text Localization and Recognition 自动视频文本定位和识别
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.62
Ge Guo, Jin Jin, X. Ping, Zhang Tao
{"title":"Automatic Video Text Localization and Recognition","authors":"Ge Guo, Jin Jin, X. Ping, Zhang Tao","doi":"10.1109/ICIG.2007.62","DOIUrl":"https://doi.org/10.1109/ICIG.2007.62","url":null,"abstract":"Text in videos contains much semantic information that can be used for video indexing and summarization. In this paper, we design an integrated algorithm of locating horizontal text based on corner point detection and color clustering. First, we get candidate text regions by using the method based on corner point detection, and then identify candidate text regions and refine the bounding boxes by color clustering. Both the precision and recall rate of the new localization method are improved, and the processing time of the new method is less. On the aspect of locating accuracy, the new method gives tighter bounding boxes. We finally enhance the quality of the detected text region by multi-frame averaging and local thresholding. Our method can handle multi-language video text with complex background including a great range of font sizes and styles. The results after above steps can be directly processed by OCR system.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"66 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":"134054570","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
Impulsive Noise Removal by Nonlocal Fuzzy Diffusion 基于非局部模糊扩散的脉冲噪声去除
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.117
Xiuping Liu, Bo Li, Zhixun Su, Xiquan Shi, Fengshan Liu
{"title":"Impulsive Noise Removal by Nonlocal Fuzzy Diffusion","authors":"Xiuping Liu, Bo Li, Zhixun Su, Xiquan Shi, Fengshan Liu","doi":"10.1109/ICIG.2007.117","DOIUrl":"https://doi.org/10.1109/ICIG.2007.117","url":null,"abstract":"Standard image deconvolution methods perform well with the Gaussian noise model based on the piecewise smooth assumption. But the performance on impulsive noise is poor because the noised image is far away from assumption of piecewise smooth. The challenge is how to handle the discontinuities and at the same time remove the impulsive noise. Median-based approaches are inadequate, because at high noise levels they induce nonlinear distortion that hampers the denoising process. Here an improved nonlocal diffusion method based on fuzzy metric is proposed. The experiments results indicate that the new method is suitable for impulsive noise.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"56 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":"132289642","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
De-blurring Algorithm for Online Particle System 在线粒子系统去模糊算法
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.80
Weixing Wang, Jiangyan Xu
{"title":"De-blurring Algorithm for Online Particle System","authors":"Weixing Wang, Jiangyan Xu","doi":"10.1109/ICIG.2007.80","DOIUrl":"https://doi.org/10.1109/ICIG.2007.80","url":null,"abstract":"In order to quickly and accurately estimate average size of densely packed aggregate particles on a moving conveyor belt, one problem is motion blur. This paper presents a novel algorithm to restore the blurred image accurately. Moving object or camera motion can cause motion blur in conventional single-exposure photography. Because the exposure time is short, the motion can be seen as constant-speed straight-line movement.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"106 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":"115549531","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
Sub-pixel Mapping of Remote Sensing Image Based on MAP model 基于MAP模型的遥感影像亚像元制图
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.175
Ke Wu, Pingxiang Li, Liangpei Zhang
{"title":"Sub-pixel Mapping of Remote Sensing Image Based on MAP model","authors":"Ke Wu, Pingxiang Li, Liangpei Zhang","doi":"10.1109/ICIG.2007.175","DOIUrl":"https://doi.org/10.1109/ICIG.2007.175","url":null,"abstract":"Mixed pixel is a common problem in Remotely Sensed classification. Even though the composition of these pixels for different classes can be estimated with pixel un-mixing model, the output provides no indication of how such classes are distributed spatially within these pixels. Sub-pixel mapping is a technique designed to obtain the spatial distribution of these classes in these pixels with information contained in mixed pixels. In this paper, the work introduces a sub- pixel mapping algorithm exploiting spatial dependence. The spatial arrangement of the different class fractions in surrounding pixels is used to find the location of the sub-pixels inside the central pixel. The sub-pixel mapping algorithm is intended to be applied to fraction images of a high spatial resolution, a regularized super-resolution image reconstruction method can be proposed to solve the problem called the Maximum A Posteriori (MAP) formulation, which based on the assumption of spatial dependence and the application of the soft classification result. With the upscale factor the proposed algorithm was tested on both artificial text image and real TM image, the result shows that it is a simple and efficient method to solve the sub-pixel mapping problem.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"92 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":"114836961","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
A New Image Scaling Algorithm Based on the Sampling Theorem of Papoulis and Application to Color Images 基于Papoulis采样定理的图像缩放新算法及其在彩色图像中的应用
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1007/978-3-540-74260-9_1
Alain Horé, D. Ziou, F. Deschênes
{"title":"A New Image Scaling Algorithm Based on the Sampling Theorem of Papoulis and Application to Color Images","authors":"Alain Horé, D. Ziou, F. Deschênes","doi":"10.1007/978-3-540-74260-9_1","DOIUrl":"https://doi.org/10.1007/978-3-540-74260-9_1","url":null,"abstract":"","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"54 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":"115385727","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
What A Single Template Can Do in Recognition 一个模板可以做什么识别
Fourth International Conference on Image and Graphics (ICIG 2007) Pub Date : 2007-08-22 DOI: 10.1109/ICIG.2007.191
Lixin Fan
{"title":"What A Single Template Can Do in Recognition","authors":"Lixin Fan","doi":"10.1109/ICIG.2007.191","DOIUrl":"https://doi.org/10.1109/ICIG.2007.191","url":null,"abstract":"This article presents a generic object detection and tracking system that requires a single template only. The system allows end-users to choose arbitrary objects to recognize, without need of extensive training. Although a single template is used, the detection and tracking are robust to different imaging conditions and intra-class variation. Finally, the system is fast and achieves real time frame rate on laptop PCs.","PeriodicalId":367106,"journal":{"name":"Fourth International Conference on Image and Graphics (ICIG 2007)","volume":"82 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":"123072489","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信