Results 21 to 30 of about 21,319 (267)

IoT based intelligent irrigation support system for smart farming applications

open access: yesAdvances in Distributed Computing and Artificial Intelligence Journal, 2020
India is an agricultural country with an ample amount of arable land that produces wide variety of crops. Growing population and urbanization puts up challenges: more and quality yield in limited area, effective utilization of water resources ...
Neha Kailash NAWANDAR, Vishal SATPUTE
doaj   +1 more source

New Proposed Fusion between DCT for Feature Extraction and NSVC for Face Classification

open access: yesCybernetics and Information Technologies, 2018
Feature extraction is an interactive and iterative analysis process of a large dataset of raw data in order to extract meaningful knowledge. In this article, we present a strong descriptor based on the Discrete Cosine Transform (DCT), we show that the ...
Nassih B.   +3 more
doaj   +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

Motion Compensation on DCT Domain [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2001
Summary: Alternative fully DCT-based video codec architectures have been proposed in the past to address the shortcomings of the conventional hybrid motion compensated DCT video codec structures traditionally chosen as the basis of implementation of standard-compliant codecs.
Liu KJ Ray, Koc Ut-Va
openaire   +3 more sources

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

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

Assessing Pragmatics through MDCTs: A Case of Iranian EFL Learners [PDF]

open access: yesIranian Journal of Applied Language Studies, 2014
Testing pragmatic competence has always posed daunting challenges to researchers and practitioners. As a step to address the gap in pragmatic testing, this paper delineates the procedural stages of developing and validating a context-sensitive Multiple ...
Majid Nemati   +2 more
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   +3 more sources

Digital Image Watermarking Techniques: A Review

open access: yesInformation, 2020
Digital image authentication is an extremely significant concern for the digital revolution, as it is easy to tamper with any image. In the last few decades, it has been an urgent concern for researchers to ensure the authenticity of digital images ...
Mahbuba Begum, Mohammad Shorif Uddin
doaj   +1 more source

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