Results 11 to 20 of about 20,648 (268)

ViSTORY: Effective Video Storyboard Generation with Visual Keyframes using Discrete Cosine Transform

open access: yesInternational Journal of Technology, 2023
Nowadays, multimedia content utility is increasing rapidly. Multimedia search engines like Google, Yahoo, Bing, etc., are available just a click away to all users. There are around 500-600 hours of video uploads per unit of time to the Internet.
Ashvini Tonge, Sudeep Thepade
doaj   +1 more source

Image Watermarking Using DWT_DCT [PDF]

open access: yesEngineering and Technology Journal, 2010
Digital watermarking has been developed to protect digital images fromillegal manipulation. Discrete wavelet Transform (DWT) and Discrete Cosine Transform (DCT) are techniques used for digital watermarking.
Bassim Abdulbaki Jumaa, Arwa Aladdin
doaj   +1 more source

RECURSIVE HIERARCHICAL CLUSTERING FOR HYPERSPECTRAL IMAGES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Partition based clustering techniques are widely used in data mining and also to analyze hyperspectral images. Unsupervised clustering only depends on data, without any external knowledge.
S. May
doaj   +1 more source

Architecture of the discrete sosine transformation processor for image compression systems on the losless-to-lossy circuit

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2021
The hardware implementations of fixed-point DCT blocks, known as IntDCT [1] and BinDCT [2], require some solutions. One of the main issues is the choice between the implementation of the conversion on FPGA, or the implementation on a digital signal ...
V. V. Kliuchenia
doaj   +1 more source

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

A new watermarking scheme for digital videos using DCT

open access: yesOpen Computer Science, 2022
With the advent of high-speed broadband Internet access, the need to protect digital videos is highly recommended. The main objective of this study is to propose an adaptive algorithm for watermarked digital videos in the frequency domain based on ...
Al-Gindy Ahmed   +5 more
doaj   +1 more source

A Low-Cost Multi-Sized HEVC Core Transform Using Time-Multiplexed DCT ‎Architectures [PDF]

open access: yesJournal of Operation and Automation in Power Engineering, 2022
High Efficiency Video Coding (HEVC) is one of the latest coding standards targeting high-resolution video contents. Due to the high complexity of the existing hardware implementation, this paper presents the low-cost and efficient DCT architectures for ...
R. Younesi, J. Rastegar, M. Rastgarpour
doaj   +1 more source

DCT-OFDM With Index Modulation [PDF]

open access: yesIEEE Communications Letters, 2017
In this letter, index modulation (IM) is proposed for OFDM systems based on a discrete cosine transform (DCT) implementation. The new DCT-OFDM-IM scheme is shown to yield spectral efficiency improvements of up to 38% relative to OFDM-IM and up to 55% relative to OFDM while occupying the same bandwidth and maintaining similar robustness against the ...
Chafii, Marwa   +2 more
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

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

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