Results 191 to 200 of about 11,867,205 (247)

A Framework for Image Based Authentication

Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005., 2006
This paper presents an innovative framework for user authentication based on images. Common user authentication based on passwords has the main drawback of the human difficulty in recalling them. Images are instead easier to remember than passwords. Moreover, modern compression and transmission techniques make image exchange between different devices ...
PERRA, CRISTIAN, D. D. GIUSTO
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Compression tolerant image authentication

Proceedings 1998 International Conference on Image Processing. ICIP98 (Cat. No.98CB36269), 2002
It is straightforward to apply general schemes for authenticating digital data to the problem of authenticating digital images. However, such a scheme would not authenticate images that have undergone lossy compression, even though they may not have been manipulated otherwise. We propose a scheme for authenticating the visual content of digital images.
Bhattacharjee, S., Kutter, M.
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Digital Image Authentication

International Journal of Digital Library Systems, 2011
Digital image authentication refers to all the techniques performing anti-falsification, digital image copyright protection, or access control. A large number of DIA techniques have been developed to authenticate digital images, including cryptography-based digital image authentication (CBDIA) techniques and data-hiding-based digital image ...
Yue Li 0013, Chia-Hung Wei
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Robust Document Image Authentication

Multimedia and Expo, 2007 IEEE International Conference on, 2007
In this paper, we propose a novel method for robust document image authentication. In the proposed method, characters and symbols on a binary document are first grouped into different classes based on k-means clustering in the feature space. Labels are then assigned to the different classes.
Ming Jiang 0006, Edward K. Wong, Nasir D. Memon   +2 more
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Authenticated compressive sensing imaging

2017 International Symposium on Networks, Computers and Communications (ISNCC), 2017
The CS (Compressive Sensing) theory has been widely implemented in many areas, the CSI (Compressive Sensing Imaging) method is one of them. In this paper, in order to design the authenticated CSI system, we have introduced the CSI method and the image authentication mechanisms. The design strategies would be also discussed.
Wu Tao, Christoph Ruland
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An Image Encryption and Authentication Scheme

2011 Seventh International Conference on Computational Intelligence and Security, 2011
In this paper, a fast image encryption and authentication scheme is presented. In the proposed scheme, a 512-bit message authentication code generated by a keyed hash function is embedded into the image by reversible data embedding technique. Then the embedded image is masked by the pseudo random sequence in feedback mode.
Jing Qiu, Ping Wang
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Image enhancement towards soft image authentication

2000 IEEE International Conference on Multimedia and Expo. ICME2000. Proceedings. Latest Advances in the Fast Changing World of Multimedia (Cat. No.00TH8532), 2002
This paper describes an image enhancement technique that can be made to any message authentication code (MAC) to improve its survivability against acceptable signal distortions such as re-compression, etc. This algorithm improves the MAC's error tolerance by transforming the image and creating an error tolerance buffer.
Liehua Xie, Gonzalo R. Arce, Arianne Lewis, Bert Basch   +3 more
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Curvelet Transform for Image Authentication

2006
In this paper, we propose a new image authentication algorithm using curvelet transform. In our algorithm, we apply ridgelet transform to each block which is subbanded from the image after wavelet transform. Experimental results demonstrate this algorithm has good property to localize tampering, and robust to JPEG ...
Jianping Shi, Zhengjun Zhai
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Authenticity and integrity of digital mammography images

IEEE Transactions on Medical Imaging, 2001
Data security becomes more and more important in telemammography which uses a public high-speed wide area network connecting the examination site with the mammography expert center. Generally, security is characterized in terms of privacy, authenticity and integrity of digital data. Privacy is a network access issue and is not considered in this paper.
Xiaoqiang Zhou, H. K. Huang, Shieh-Liang Lou   +2 more
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Image Authentication for Permissible Cropping

2019
In a digital society, it is not easy to achieve a balance between privacy and authentication. Privacy requires some modifications of the original image and signed data, but image authentication needs to ensure its integrity as much as possible. The most common method of privacy protecting is deleting some sensitive data in the original data.
Haixia Chen, Shangpeng Wang, Hongyan Zhang, Wei Wu 0001   +3 more
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