2012 IEEE International Workshop on Information Forensics and Security (WIFS)最新文献_第4页

Sequence detection of overlapping latent fingerprints using a short-term aging feature 基于短时老化特征的重叠潜指纹序列检测

2012 IEEE International Workshop on Information Forensics and Security (WIFS) Pub Date : 2012-12-01 DOI: 10.1109/WIFS.2012.6412630

M. Schott, R. Merkel, J. Dittmann

引用次数: 12

Non-regenerative two-hop wiretap channels using interference neutralization 使用干扰中和的非再生双跳窃听信道

2012 IEEE International Workshop on Information Forensics and Security (WIFS) Pub Date : 2012-12-01 DOI: 10.1109/WIFS.2012.6412659

Sabrina Gerbracht, Eduard Axel Jorswieck, G. Zheng, B. Ottersten

引用次数: 5

Facial landmark configuration for improved detection 面部地标配置，改进检测

2012 IEEE International Workshop on Information Forensics and Security (WIFS) Pub Date : 2012-12-01 DOI: 10.1109/WIFS.2012.6412618

C. Huang, B. Efraty, U. Kurkure, E. Papadakis, S. Shah, I. Kakadiaris

引用次数: 5

Telephone handset identification by feature selection and sparse representations 基于特征选择和稀疏表示的电话听筒识别

2012 IEEE International Workshop on Information Forensics and Security (WIFS) Pub Date : 2012-12-01 DOI: 10.1109/WIFS.2012.6412628

Yannis Panagakis, Constantine Kotropoulos

引用次数: 32

Two-stage appearance-based re-identification of humans in low-resolution videos 低分辨率视频中基于外观的两阶段人类再识别

2012 IEEE International Workshop on Information Forensics and Security (WIFS) Pub Date : 2012-12-01 DOI: 10.1109/WIFS.2012.6412619

J. Metzler

{"title":"Two-stage appearance-based re-identification of humans in low-resolution videos","authors":"J. Metzler","doi":"10.1109/WIFS.2012.6412619","DOIUrl":"https://doi.org/10.1109/WIFS.2012.6412619","url":null,"abstract":"The objective of human re-identification is to recognize a specific individual on different locations and to determine whether an individual has already appeared. This is especially in multi-camera networks with non-overlapping fields of view of interest. However, this is still an unsolved computer vision task due to several challenges, e.g. significant changes of appearance of humans as well as different illumination, camera parameters etc. In addition, for instance, in surveillance scenarios only low-resolution videos are usually available, so that biometric approaches may not be applied. This paper presents a whole-body appearance-based human re-identification approach for low-resolution videos. The method is divided in two stages: first, an appearance model is computed from several images of an individual and pairwise compared to each other. The model is based on means of covariance descriptors determined by spectral clustering techniques. In the second stage, the result is refined by learning the appearance manifolds of the best matches. The proposed approach is tested on a multi-camera data set of a typical surveillance scenario and compared to a color histogram based method.","PeriodicalId":396789,"journal":{"name":"2012 IEEE International Workshop on Information Forensics and Security (WIFS)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124851778","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

Reverse engineering of double JPEG compression in the presence of image resizing 逆向工程的双重JPEG压缩在存在的图像大小调整

2012 IEEE International Workshop on Information Forensics and Security (WIFS) Pub Date : 2012-12-01 DOI: 10.1109/WIFS.2012.6412637

T. Bianchi, A. Piva

引用次数: 41

Identify computer generated characters by analysing facial expressions variation 通过分析面部表情变化来识别计算机生成的角色

2012 IEEE International Workshop on Information Forensics and Security (WIFS) Pub Date : 2012-12-01 DOI: 10.1109/WIFS.2012.6412658

Duc-Tien Dang-Nguyen, G. Boato, F. D. Natale

引用次数: 28

Preventing unauthorized copying of displayed information by utilizing differences in spectral sensitivity between humans and imaging devices 通过利用人和成像设备之间的光谱灵敏度差异来防止未经授权的复制显示信息

2012 IEEE International Workshop on Information Forensics and Security (WIFS) Pub Date : 2012-12-01 DOI: 10.1109/WIFS.2012.6412640

Takayuki Yamada, S. Gohshi, I. Echizen

引用次数: 0

Detecting anomalous network hosts by means of PCA 基于PCA的异常网络主机检测

2012 IEEE International Workshop on Information Forensics and Security (WIFS) Pub Date : 2012-12-01 DOI: 10.1109/WIFS.2012.6412633

T. Pevný, M. Rehák, Martin Grill

引用次数: 11

An efficient JPEG steganographic scheme using uniform embedding 采用均匀嵌入的高效JPEG隐写方案

2012 IEEE International Workshop on Information Forensics and Security (WIFS) Pub Date : 2012-12-01 DOI: 10.1109/WIFS.2012.6412644

Linjie Guo, J. Ni, Y. Shi

{"title":"An efficient JPEG steganographic scheme using uniform embedding","authors":"Linjie Guo, J. Ni, Y. Shi","doi":"10.1109/WIFS.2012.6412644","DOIUrl":"https://doi.org/10.1109/WIFS.2012.6412644","url":null,"abstract":"Steganography is the science and art of covert communication. Its objective is to hide the most secret messages into a cover object with the least possible statistical detectability. In practice, this is generally realized by a framework of minimal distortion embedding. This paper presents an efficient JPEG steganographic scheme based on syndrome trellis coding (STC) and a uniform embedding strategy, which, instead of random modification, tries to modify nonzero quantized DCT coefficients of different magnitude with equal probability, leading to possible minimal artifacts for statistics of DCT coefficients as a whole. The distortion metric corresponding to the uniform embedding is based on the magnitude of the DCT coefficients and both their intra- and inter-block neighborhood coefficients and known as uniform embedding distortion metric (UED). With the proposed scheme, the STC provides multiple codewords for a given message, while the UED determines the best one with minimal distortion. In this way, the average statistics change in each bin is significantly reduced, which corresponds to less detectability of steganalysis. Compared with prior arts, experimental results demonstrate the superior performance of the proposed scheme in terms of secure embedding capacity against steganalysis.","PeriodicalId":396789,"journal":{"name":"2012 IEEE International Workshop on Information Forensics and Security (WIFS)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130620864","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: 122