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检索条件"任意字段=Conference on Mobile Multimedia/Image Processing, Security, and Applications 2011"

共 160 条记录，以下是21-30 订阅

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Secure image communication for network applications

Secure image communication for network applications

引用

conference on mobile multimedia/image processing for Military and security applications

作者： Lian, Shiguo Liu, Zhongxuan Wang, Jinwei Ren, Zhen Wang, Haila France Telecom Res & Dev Beijing Beijing 100080 Peoples R China Nanjing Univ Sci & Technol Dept Automat Nanjing PR-210094 Peoples R China

ISBN: (纸本)081946306X

A secure image transmission scheme based on JPEG2000 codec is proposed in this paper, which combines encryption with encoding and is suitable for real-time applications. In this scheme, the sensitive data are self-authenticated, then partial-encrypted during compression process, and the compressed data are encrypted by the lightweight encryption algorithm combined with error-correction codec. The self-authentication process can detect malicious tampering or transmission errors. The encryption process obtains suitable tradeoff between security and time-efficiency through encrypting data adaptively, and keeps the original system's error-robustness. The decryption process is symmetric to the encryption process. Experimental results show that this scheme obtains high perception security and time efficiency, and is thus suitable for secure image transmission over network.

关键词： watermarking image encryption image authentication digital right management

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Digital Information processing and Communications 2011

引用

丛书名： Communications in Computer and Information Science

2011年

作者： Vaclav Snasael Jan Platos Eyas El-Qawasmeh

ISBN: (数字)9783642223891

ISBN: (纸本)9783642223884

This two-volume-set (CCIS 188 and CCIS 189) constitutes the refereed proceedings of the International conference on Digital Information processing and Communications, ICDIPC 2011, held in Ostrava, Czech Republic, in July 2011. The 91 revised full papers of both volumes presented together with 4 invited talks were carefully reviewed and selected from 235 submissions. The papers are organized in topical sections on network security; Web applications; data mining; neural networks; distributed and parallel processing; biometrics technologies; e-learning; information ethics; image processing; information and data management; software engineering; data compression; networks; computer security; hardware and systems; multimedia; ad hoc network; artificial intelligence; signal processing; cloud computing; forensics; security; software and systems; mobile networking; and some miscellaneous topics in digital information and communications.

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Digital Information processing and Communications, Part II 2011

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丛书名： Communications in Computer and Information Science

2011年

作者： Vaclav Snasael Jan Platos Eyas El-Qawasmeh

ISBN: (数字)9783642224102

ISBN: (纸本)9783642224096

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A mobile System for Skin Cancer Diagnosis and Monitoring

A Mobile System for Skin Cancer Diagnosis and Monitoring

引用

conference on mobile multimedia/image processing, security, and applications

作者： Gu, Yanliang Tang, Jinshan Michigan Technol Univ Sch Technol Houghton MI 49931 USA

ISBN: (纸本)9781628410570

In this paper, we propose a mobile system for aiding doctors in skin cancer diagnosis and other persons in skin cancer monitoring. The basic idea is to use image retrieval techniques to help the users to find the similar skin cancer cases stored in a database by using smart phones. The query image can be taken by a smart phone from a patient or can be uploaded from other resources. The shapes of the skin lesions are used for matching two skin lesions, which are segmented from skin images using the skin lesion extraction method developed in 1. The features used in the proposed system are obtained by Fourier descriptor. A prototype application has been developed and can be installed in an iPhone. In this application, the iPhone users can use the iPhone as a diagnosis tool to find the potential skin lesions in a persons' skin and compare the skin lesions detected by the iPhone with the skin lesions stored in a database in a remote server.

关键词： mobile system skin cancer image retrieval Fourier descriptor shape matching

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Cell Phones as Imaging Sensors

Cell Phones as Imaging Sensors

引用

conference on mobile multimedia/image processing, security, and applications 2010

作者： Bhatti, Nina Baker, Harlyn Marguier, Joanna Berclaz, Jerome Suesstrunk, Sabine Hewlett Packard Labs 1501 Page Mill Dr Palo Alto CA 94304 USA Ecole Polytech Fed Lausanne Sch Comp & Commun Sci IC Lausanne Switzerland

ISBN: (纸本)9780819481726

Camera phones are ubiquitous, and consumers have been adopting them faster than any other technology in modern history. When connected to a network, though, they are capable of more than just picture taking: Suddenly, they gain access to the power of the cloud. We exploit this capability by providing a series of image-based personal advisory services. These are designed to work with any handset over any cellular carrier using commonly available multimedia Messaging Service (MMS) and Short Message Service (SMS) features. Targeted at the unsophisticated consumer, these applications must be quick and easy to use, not requiring download capabilities or preplanning. Thus, all application processing occurs in the back-end system (i.e., as a cloud service) and not on the handset itself. Presenting an image to an advisory service in the cloud, a user receives information that can be acted upon immediately. Two of our examples involve color assessment - selecting cosmetics and home decor paint palettes;the third provides the ability to extract text from a scene. In the case of the color imaging applications, we have shown that our service rivals the advice quality of experts. The result of this capability is a new paradigm for mobile interactions - image-based information services exploiting the ubiquity of camera phones.

关键词： image processing and Computer Vision applications and Expert Systems Recommendation systems mobile based image services Cloud computing

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Multiple masks based pixel comparison steganalysis method for mobile Imaging

Multiple masks based pixel comparison steganalysis method fo...

引用

conference on mobile multimedia/image processing for Military and security applications

作者： Agaian, Sos S. Peterson, Gilbert L. Rodriguez, Benjamin M. Univ Texas Dept Elect & Comp Engn Multimedia & Mobile Signal Proc Lab San Antonio TX 78285 USA Grad Sch Engn & Management Air Force Inst Technol Dept Elect & Comp Engn Wright Patterson AFB OH 45433 USA

ISBN: (纸本)081946306X

Steganalysis has many challenges;which include the accurate and efficient detection of hidden content within digital images. This paper focuses on the development of a new multi pixel comparison method used for the detection of steganographic content within digital images transmitted over mobile channels. The sensitivity of detecting hidden information within a digital image can be increased or decreased to determine if slight changes have been made to the digital image for the target of blind steganalysis. The key thought of the presented method is to increase the sensitivity of features when alterations are made within the bit planes of a digital image. The differences between the new method and existing pixel comparison methods are;multiple masks of different sizes are used to increase the sensitivity and weighted features are used to improve the classification of the feature sets. Weights are also used with the various pixel comparisons to ensure proper sensitivity when detecting small changes. The article also investigates the reliability of detection and estimation length of hidden data within wireless digital images with potential for military applications emphasizing on defense and security.

关键词： steganography steganalysis feature selection support vector machine classifier mobile imaging

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A novel method of testing image randomness with applications to image shuffling and encryption

A novel method of testing image randomness with applications...

引用

conference on mobile multimedia/image processing, security, and applications

作者： Wu, Yue Agaian, Sos Noonan, Joseph P. Tufts Univ 161 Coll Ave Medford MA 02155 USA Univ Texas San Antonio San Antonio 78149 TX USA

ISBN: (纸本)9780819495464

This paper discusses the problem of testing the degree of randomness within an image, particularly for a shuffled or encrypted image. Its key contributions are: 1) a mathematical model of perfectly shuffled images;2) the derivation of the theoretical distribution of pixel differences;3) new hypothesis tests based approach to differentiate whether or not a test image is perfectly shuffled;and 4) a randomized algorithm to unbiasedly evaluate the degree of image randomness. Simulation results show that the proposed method is robust and effective in evaluating the degree of image randomness, and may often be more suitable for image applications than commonly used testing schemes designed for binary data like NIST 800-22 test suites. The developed method may be also useful as a first step to determine whether or not an image shuffling or encryption scheme is suitable for a particular cryptographic application.

关键词： Randomness Measure Randomness Tests image Encryption image Shuffling

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SecurePhone: a mobile phone with biometric authentication and e-signature support for dealing secure transactions on the fly

SecurePhone: a mobile phone with biometric authentication an...

引用

conference on mobile multimedia/image processing for Military and security applications

作者： Ricci, R. Chollet, G. Crispino, M. V. Jassim, S. Koreman, J. Olivar-Dimas, M. Garcia-Salicetti, S. Soria-Rodriguez, P. Informat SRL Via Magazzini Gen 31 I-00154 Rome Italy ENST GET Dept TSI F-75634 Paris France Nergal srl I-00155 Rome Italy Buckingham Univ Buckingham MK18 1EG England Univ Saarland D-66041 Saarbrucken Germany Telefonica Moviles Espana SA E-28001 Madrid Spain INT GET F-91011 Evry France Atos Origin E-28037 Madrid Spain

ISBN: (纸本)081946306X

This article presents an overview of the SecurePhone project, with an account of the first results obtained. SecurePhone's primary aim is to realise a mobile phone prototype - the "SecurePhone" - in which biometrical authentication enables users to deal secure, dependable transactions over a mobile network. The SecurePhone is based on a commercial PDA-phone, supplemented with specific software modules and a customised SIM card. It integrates in a single environment a number of advanced features: access to cryptographic keys through strong multimodal biometric authentication;appending and verification of digital signatures;real-time exchange and interactive modification of (esigned) documents and voice recordings. SecurePhone's "biometric recogniser" is based on original research. A fused combination of three different biometric methods - speaker, face and handwritten signature verification - is exploited, with no need for dedicated hardware components. The adoption of non-intrusive, psychologically neutral biometric techniques is expected to mitigate rejection problems that often inhibit the social use of biometrics, and speed up the spread of e-signature technology. Successful biometric authentication grants access to SecurePhone's. built-in e-signature services through a user-friendly interface. Special emphasis is accorded to the definition of a trustworthy security chain model covering all aspects of system operation. The SecurePhone is expected to boost m-commerce and open new scenarios for in-business and m-work, by changing the way people interact and by improving trust and confidence in information technologies, often considered intimidating and difficult to use. Exploitation plans will also explore other application domains (physical and logical access control, securised mobile communications).

关键词： mobile communications multimodal biometrics biometric authentication electronic signature security encryption in-business

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A new JPEG-Based steganographic algorithm for mobile devices

A new JPEG-Based steganographic algorithm for mobile devices

引用

conference on mobile multimedia/image processing for Military and security applications

作者： Agaian, Sos S. Cherukuri, Ravindranath Schneider, Erik C. White, Gregory B. Univ Texas Multimedia & Mobile Signal Proc Lab 6900 N Loop 1604 W San Antonio TX 78249 USA Univ Texas Ctr Infrastruct Assurance & secur San Antonio TX 78249 USA

ISBN: (纸本)081946306X

Currently, cellular phones constitute a significant portion of the global telecommunications market. Modem cellular phones offer sophisticated features such as Internet access, on-board cameras, and expandable memory which provide these devices with excellent multimedia capabilities. Because of the high volume of cellular traffic, as well as the ability of these devices to transmit nearly all forms of data. The need for an increased level of security in wireless communications is becoming a growing concern. Steganography could provide a solution to this important problem. In this article, we present a new algorithm for JPEG-compressed images which is applicable to mobile platforms. This algorithm embeds sensitive information into quantized discrete cosine transform coefficients obtained from the cover JPEG. These coefficients are rearranged based on certain statistical properties and the inherent processing and memory constraints of mobile devices. Based on the energy variation and block characteristics of the cover image, the sensitive data is hidden by using a switching embedding technique proposed in this article. The proposed system offers high capacity while simultaneously withstanding visual and statistical attacks. Based on simulation results, the proposed method demonstrates an improved retention of first-order statistics when compared to existing JPEG-based steganographic algorithms, while maintaining a capacity which is comparable to F5 for certain cover images.

关键词： mobile devices JPEG steganography steganalysis secure communication

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Improving the recognition of fingerprint biometric system using enhanced image fusion

Improving the recognition of fingerprint biometric system us...

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conference on mobile multimedia/image processing, security, and applications 2010

作者： Alsharif, Salim El-Saba, Aed Stripathi, Reshma Univ S Alabama Dept Elect & Comp Engn Mobile AL 36688 USA

ISBN: (纸本)9780819481726

Fingerprints recognition systems have been widely used by financial institutions, law enforcement, border control, visa issuing, just to mention few. Biometric identifiers can be counterfeited, but considered more reliable and secure compared to traditional ID cards or personal passwords methods. Fingerprint pattern fusion improves the performance of a fingerprint recognition system in terms of accuracy and security. This paper presents digital enhancement and fusion approaches that improve the biometric of the fingerprint recognition system. It is a two-step approach. In the first step raw fingerprint images are enhanced using high-frequency-emphasis filtering (HFEF). The second step is a simple linear fusion process between the raw images and the HFEF ones. It is shown that the proposed approach increases the verification and identification of the fingerprint biometric recognition system, where any improvement is justified using the correlation performance metrics of the matching algorithm.

关键词： Biometric system image fusion high-frequency emphasis filtering wavelet-filter joint transform correlation fingerprint verification and identification

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