Results 21 to 30 of about 95,874 (190)

A Novel Data-Aided Frame Synchronization Method Based on Hough Transform for Optical Communications

open access: yesPhotonics, 2020
In optical communication systems, frame synchronization is essential for subsequent operations, such as error correction and payload extraction.
Huiwen Yin   +3 more
doaj   +1 more source

Category-Blind Human Action Recognition: A Practical Recognition System [PDF]

open access: yes2015 IEEE International Conference on Computer Vision (ICCV), 2015
Existing human action recognition systems for 3D sequences obtained from the depth camera are designed to cope with only one action category, either single-person action or two-person interaction, and are difficult to be extended to scenarios where both action categories co-exist.
Wenbo Li 0001   +3 more
openaire   +1 more source

Blind Signal Dereverberation for Machine Speech Recognition

open access: yesCoRR, 2022
We present a method to remove unknown convolutive noise introduced to speech by reverberations of recording environments, utilizing some amount of training speech data from the reverberant environment, and any available non-reverberant speech data. Using Fourier transform computed over long temporal windows, which ideally cover the entire room impulse ...
Samik Sadhu, Hynek Hermansky
openaire   +2 more sources

Variational semi-blind sparse deconvolution with orthogonal kernel bases and its application to MRFM [PDF]

open access: yes, 2014
We present a variational Bayesian method of joint image reconstruction and point spread function (PSF) estimation when the PSF of the imaging device is only partially known.
Se Un Parka   +5 more
core   +1 more source

Speech enhancement via combination of Wiener filter and blind source separation [PDF]

open access: yes, 2011
Automatic speech recognition (ASR) often fails in acoustically noisy environments. Aimed to improve speech recognition scores of an ASR in a real-life like acoustical environment, a speech pre-processing system is proposed in this paper, which consists ...
Azapour, M.   +14 more
core   +1 more source

Visual Deprivation Alters Functional Connectivity of Neural Networks for Voice Recognition: A Resting-State fMRI Study

open access: yesBrain Sciences, 2023
Humans recognize one another by identifying their voices and faces. For sighted people, the integration of voice and face signals in corresponding brain networks plays an important role in facilitating the process.
Wenbin Pang   +6 more
doaj   +1 more source

An Improved Blind Recognition Method of the Convolutional Interleaver Parameters in a Noisy Channel

open access: yesIEEE Access, 2019
In a digital communication system, forward error correction (FEC) codes and interleavers are implemented to code the data so as to improve the error performance, which is hindered by random and burst errors. In the context of noncooperative communication,
Yiyao Xu, Yang Zhong, Zhiping Huang
doaj   +1 more source

Non-negative mixtures [PDF]

open access: yes, 2010
This is the author's accepted pre-print of the article, first published as M. D. Plumbley, A. Cichocki and R. Bro. Non-negative mixtures. In P. Comon and C. Jutten (Ed), Handbook of Blind Source Separation: Independent Component Analysis and Applications.
M. D. Plumbley   +9 more
core   +1 more source

Reliable Ultrasonic Obstacle Recognition for Outdoor Blind Navigation

open access: yesTechnologies, 2022
A reliable state-of-the-art obstacle detection algorithm is proposed for a mobile application that will analyze in real time the data received by an external sonar device and decide the need to audibly warn the blind person about near field obstacles ...
Apostolos Meliones   +2 more
doaj   +1 more source

Braille Recognition for Reducing Asymmetric Communication between the Blind and Non-Blind [PDF]

open access: yesSymmetry, 2020
Assistive braille technology has existed for many years with the purpose of aiding the blind in performing common tasks such as reading, writing, and communicating with others. Such technologies are aimed towards helping those who are visually impaired to better adapt to the visual world.
openaire   +1 more source

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