Results 21 to 30 of about 38,586 (315)

FPGA-based conformance testing and system prototyping of an MPEG-4 SA-DCT hardware accelerator [PDF]

open access: yes, 2005
Two FPGA implementations of a shape adaptive discrete cosine transform (SA-DCT) accelerator are presented in this paper: one PCI-based and the other AMBA-based. The former is used for conformance testing with the MPEG-4 standard requirements.
O'Connor, Noel E.   +4 more
core   +1 more source

QIM - Based Audio Watermarking with Combination Technique of DCT-QR-CPT

open access: yesJurnal Elkomika, 2019
ABSTRAK Audio watermarking adalah teknik memasukkan informasi ke dalam file audio dan untuk melindungi hak cipta data digital dari distribusi ilegal.
RENDY DWI RENDRAGRAHA   +2 more
doaj   +1 more source

THE REFUSAL STRATEGIES EMPLOYED BY PRE-SERVICE EFL TEACHERS: A COMPARISON BETWEEN JAVANESE AND SUMATRANS

open access: yesJurnal Penelitian Humaniora, 2020
Refusing is a part of commissive speech acts. Refusing is a face-threatening act (FTA) that needs a good pragmatic competence since it probably gives risk to the interlocutor's positive or negative face.
Lintang Indah Ayu Respati Dewi   +2 more
doaj   +1 more source

How the Interpretation of Drivers' Behavior in Virtual Environment Can Become a Road Design Tool: A Case Study

open access: yesAdvances in Human-Computer Interaction, 2011
Driving is the result of a psychological process that translates data, signals and direct/indirect messages into behavior, which is continuously adapted to the exchange of varying stimuli between man, environment and vehicle.
Marco Pasetto, Stefano Damiano Barbati
doaj   +1 more source

Reconfigurable implementation of recursive DCT kernels for reduced quantization noise [PDF]

open access: yes, 2003
Time multiplexed implementations of the recursive DCT processors are widely used in many multimedia and compression applications. Recently proposed three Goertzel kernels offer significant improvement (up to 90 %) in the noise performance of the time ...
Beck, R.   +7 more
core   +1 more source

Comparison of FFT-Based and DCT-Based Channel Estimation and ECC for OFDM System [PDF]

open access: yesEngineering and Technology Journal, 2015
Orthogonal Frequency Division Multiplexing (OFDM) has become a popular modulation method for high data rate wireless communications. In this paper, two schemes are proposed.
Awatif Ali Jafaar
doaj   +1 more source

Color Image Compression Using DPCM with DCT, DWT and Quadtree Coding Scheme [PDF]

open access: yesEngineering and Technology Journal, 2016
This paper is concerned with the design and implementation of a compression method for color image. This method based on Differential Pulse Code Modulation (DPCM), Discrete Cosine Transform (DCT) , Discrete Wavelet Transform (DWT) and Quadtree Coding ...
Ashwaq T. Hashim, Suhad A. Ali
doaj   +1 more source

DCT-Based Iris Recognition [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2007
This paper presents a novel iris coding method based on differences of discrete cosine transform (DCT) coefficients of overlapped angular patches from normalized iris images. The feature extraction capabilities of the DCT are optimized on the two largest publicly available iris image data sets, 2,156 images of 308 eyes from the CASIA database and 2,955
Donald M. Monro   +2 more
openaire   +2 more sources

Native EFL Raters’ Criteria in Assessing the Speech Act of Complaint: The Case of American and British EFL Teachers [PDF]

open access: yesIranian Journal of Applied Language Studies, 2015
Despite the importance of interlanguage pragmatic rating (ILP) in the second language teaching and learning context, scant attention has been devoted to it. This study aims to investigate native EFL teachers’ major criteria in assessing the speech act of
Minoo Alemi, Neda Khanlarzadeh
doaj   +1 more source

Image quality assessment based on harmonics gain/loss information [PDF]

open access: yes, 2005
We present an objective reduced-reference image quality assessment method based on harmonic gain/loss information through a discriminative analysis of local harmonic strength (LHS).
Gunawan, I.P.   +3 more
core   +1 more source

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