Results 41 to 50 of about 123,647 (323)

A discrete sine–cosine based method for the elasticity of heterogeneous materials with arbitrary boundary conditions [PDF]

open access: yes
The aim of this article is to extend Moulinec and Suquet (1998)’s FFT-based method for heterogeneous elasticity to non-periodic Dirichlet/Neumann boundary conditions.
AMADOU SANOKO, Abdoul Magid   +5 more
core   +1 more source

Design of Optimized Hardware Architecture for Discrete Cosine Transform using Loeffler’s Algorithm

open access: yesEmitter: International Journal of Engineering Technology
The Discrete Cosine Transform (DCT) is the most commonly used transformation technique in image processing applications for data compression.
CHINMAYI S V, VEENA M B
doaj   +1 more source

Combined DWT and DCT Image Compression Using Sliding RLE Technique

open access: yesمجلة بغداد للعلوم, 2011
A number of compression schemes were put forward to achieve high compression factors with high image quality at a low computational time. In this paper, a combined transform coding scheme is proposed which is based on discrete wavelet (DWT) and discrete ...
Baghdad Science Journal
doaj   +1 more source

Lightweight Denoising Autoencoder Design for Noise Removal in Electrocardiography

open access: yesIEEE Access, 2022
This study proposes two denoising autoencoder models with discrete cosine transform and discrete wavelet transform, to remove electrode motion artifacts in noisy electrocardiography. Initially, the discrete cosine transform and discrete wavelet transform
Ming-Hwa Sheu   +5 more
doaj   +1 more source

Hardware acceleration architectures for MPEG-Based mobile video platforms: a brief overview [PDF]

open access: yes, 2003
This paper presents a brief overview of past and current hardware acceleration (HwA) approaches that have been proposed for the most computationally intensive compression tools of the MPEG-4 standard.
Murphy, Noel   +6 more
core   +1 more source

A novel light field compression framework with hybrid residue transform mechanism

open access: yesElectronics Letters, 2022
To meet the challenge of compressing the vast light field data, many prediction‐based algorithms achieve satisfactory results. Although these algorithms remove most redundancy through angular prediction, they rarely develop the suitable de‐correlation ...
Xinpeng Huang   +3 more
doaj   +1 more source

Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane   +3 more
wiley   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch   +3 more
wiley   +1 more source

Modeling Dislocation Cutting of γ′ Precipitates in Ni‐Base Superalloys: Linking Atomistic and Dislocation Dynamics Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
Dislocation cutting of γ′ precipitates in Ni‐based superalloys is investigated by linking atomistic simulations with discrete dislocation dynamics. The critical cutting stress is shown to be governed by the antiphase boundary energy, while line tension effects promote edge‐preferred cutting.
Frédéric Houllé   +9 more
wiley   +1 more source

A VLSI Array Architecture for Realization of DFT, DHT, DCT and DST [PDF]

open access: yes, 2001
A unified array architecture is described for computation of DFT, DHT, DCT and DST using a modified CORDIC (CoOrdinate Rotation DIgital Computer) arithmetic unit as the basic Processing Element (PE).
Dhar, Anindya Sunder   +2 more
core  

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