Results 11 to 20 of about 3,303,661 (290)

Blind inpainting forgery detection [PDF]

open access: yes2014 IEEE Global Conference on Signal and Information Processing (GlobalSIP), 2014
The increasingly use of digital images in our daily life and the availability of powerful software for processing and editing images, open new challenges regarding illegal or unauthorized image manipulation. Thus, it becomes essential to authenticate digital copies, validate their content, and detect possible forgeries.
Dang Thanh Trung   +2 more
openaire   +2 more sources

Adaptive Blind Chip-Level Multiuser Detection in Multi-Rate Synchronous DS-CDMA System with Partial Loading [PDF]

open access: yes, 2004
This paper addresses an adaptive blind multiuser detection strategy for a multi-rate direct sequence CDMA downlink channel. Specifically, two chip-level equalisation schemes, using either variable spreading length (VSL) or multi-code (MCD) multi-rate ...
Weiss, S, Weiss, S., Hadef, M., Hadef, M
core   +4 more sources

Steganography Scheme Based on Reed-Muller Code with Improving Payload and Ability to Retrieval of Destroyed Data for Digital Images [PDF]

open access: yesAUT Journal of Electrical Engineering, 2017
In this paper, a new steganography scheme with high embedding payload and good visual quality is presented. Before embedding process, secret information is encoded as block using Reed-Muller error correction code.
A. M. Molaei   +2 more
doaj   +1 more source

Blind Speech Watermarking Method with Frame Self-Synchronization Based on Spread-Spectrum Using Linear Prediction Residue

open access: yesEntropy, 2022
State-of-the-art speech watermarking techniques enable speech signals to be authenticated and protected against any malicious attack to ensure secure speech communication.
Takuto Isoyama   +2 more
doaj   +1 more source

Robust Image Watermarking Based on Two-Layer Visual Saliency-Induced JND Profile

open access: yesIEEE Access, 2019
Visual saliency (VS) is an important mechanism for defining which areas of an image will attract more attention of the HVS. Thus, VS can be employed to weight the just noticeable difference (JND) with different attention levels.
Wenbo Wan   +5 more
doaj   +1 more source

iShoes for blind and visually impaired people [PDF]

open access: yes, 2013
This paper presents the development of an iShoes system for blind and visually impaired people. The iShoes system utilizes a microcontroller with sound output interfaced with ultrasonic sensors. The prototype system is designed to be specifically mounted
Assairi, Bandar, Holmes, Violeta
core   +3 more sources

Blind detection of independent dynamic components [PDF]

open access: yes2001 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.01CH37221), 2002
In certain applications of independent component analysis (ICA) it is of interest to test hypotheses concerning the number of components or simply to test whether a given number of components is significant relative to a "white noise" null hypothesis. We estimate probabilities of such competing hypotheses for ICA based on dynamic decorrelation.
Lars Kai Hansen   +2 more
openaire   +3 more sources

Screen-Cam Robust and Blind Watermarking for Tile Satellite Images

open access: yesIEEE Access, 2020
To achieve watermark synchronization from an image with perspective distortion is a challenge. This paper proposes a screen-cam robust and blind watermarking scheme for tile satellite images, which means we do not need any user interaction or additional ...
Weitong Chen   +4 more
doaj   +1 more source

KeySplitWatermark: Zero Watermarking Algorithm for Software Protection Against Cyber-Attacks

open access: yesIEEE Access, 2020
Cyber-attacks are evolving at a disturbing rate. Data breaches, ransomware attacks, crypto-jacking, malware and phishing attacks are now rampant. In this era of cyber warfare, the software industry is also growing with an increasing number of software ...
Celestine Iwendi   +6 more
doaj   +1 more source

A Partial Amplify and Forward Cooperative Communication Strategy Based on Blind Signal Detection

open access: yesIEEE Access, 2020
Due to the great potential in extending propagation distance and enhancing the link reliability, amplify and forward (AF) cooperative communications have attracted much attention recently.
Chang Li   +5 more
doaj   +1 more source

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