Results 11 to 20 of about 186,581 (309)

Establishment of ultrasound-guided stellate ganglion block in rats

open access: yesFrontiers in Neuroscience, 2023
BackgroundA novel protocol for accurate stellate ganglion block under ultrasound guidance was designed in rats. This technique raises the success rate of stellate ganglion block and reduces the incidence of brachial plexus and vagus nerve block ...
Shi-zhu Lin   +10 more
doaj   +1 more source

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 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   +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

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   +2 more sources

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

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

Blind Chip-Rate Multiuser Equalisation [PDF]

open access: yes, 2003
This paper addresses blind multiuser detection in a DS-CDMA downlink channel. The synchronous users are separated by re-establishing orthogonality of their spreading sequences in a common chip-rate equaliser.
S. Weiss, M. Hadef, Weiss, S., Hadef, M.
core   +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

Semi-blind iterative joint channel estimation and K-best sphere decoding for MIMO [PDF]

open access: yes, 2013
An efficient and high-performance semi-blind scheme is proposed for Multiple-Input Multiple-Output (MIMO) systems by iteratively combining channel estimation with K-Best Sphere Decoding (SD).
Messier, G.G.   +7 more
core   +1 more source

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