Articles with "cosine transform" as a keyword



Realization of Second-Order Structure of Recursive Algorithm for Discrete Cosine Transform

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Published in 2019 at "Circuits, Systems, and Signal Processing"

DOI: 10.1007/s00034-018-0885-6

Abstract: A computational and hardware-efficient second-order infinite impulse response filter structure is proposed in this paper. It can compute discrete cosine transform (DCT) with improved processing speed and is valid for N = 2r, where N is the… read more here.

Keywords: algorithm; second order; structure; discrete cosine ... See more keywords

Huffman quantization approach for optimized EEG signal compression with transformation technique

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Published in 2020 at "Soft Computing"

DOI: 10.1007/s00500-020-04804-z

Abstract: The significance of the electroencephalography (EEG) signal is used to read the brain activity in the form of electrical patterns. EEG signals help to diagnose anomalies in the brain at the time of head injuries,… read more here.

Keywords: compression; eeg signal; huffman quantization; discrete cosine ... See more keywords

ReSNN-DCT: Methodology for Reduction of the Spiking Neural Network using Discrete Cosine Transform and Elegant Pairing

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Published in 2022 at "IEEE Access"

DOI: 10.1109/access.2022.3182719

Abstract: In recent years, the use of artificial neural network applications to perform object classification and event prediction has increased, mainly from research about deep learning techniques running on hardware such as GPU and FPGA. The… read more here.

Keywords: neural network; methodology; spiking neural; cosine transform ... See more keywords

Simulation of Quantum Discrete Cosine Transform for Grayscale Image Compression Using Qiskit

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Published in 2025 at "IEEE Access"

DOI: 10.1109/access.2025.3632196

Abstract: The Discrete Cosine Transform (DCT) is an integral part of classical image compression, which becomes the basis of the JPEG standard. With advances in quantum computing, there is growing interest in exploring quantum analogues of… read more here.

Keywords: image; simulation; compression; quantum ... See more keywords

SAR Image Despeckle With CNN Using a Novel Logarithmic Discrete Cosine Transform-Based Loss

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Published in 2024 at "IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"

DOI: 10.1109/jstars.2024.3450429

Abstract: The coherent nature of imaging in synthetic aperture radar (SAR) inevitably gives rise to speckle noise, a challenge exacerbated by the constrained bandwidth and limited look angles. Among the despeckling algorithms, convolutional neural networks (CNNs)… read more here.

Keywords: loss; image; sar image; discrete cosine ... See more keywords

Efficient Hyperspectral Image Classification Using Discrete Cosine Transform on Limited-Resource Systems

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Published in 2025 at "IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"

DOI: 10.1109/jstars.2025.3605271

Abstract: Deep learning-based approaches to hyperspectral image analysis have attracted large attention and exhibited high performance in image classification tasks. However, deployment of deep learning-based hyperspectral image analysis systems is challenging due to the computational complexity… read more here.

Keywords: image classification; classification; hyperspectral image; image ... See more keywords

Convolutional Neural Networks With Discrete Cosine Transform Features

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Published in 2022 at "IEEE Transactions on Computers"

DOI: 10.1109/tc.2022.3150574

Abstract: The Discrete Cosine Transform (DCT) exposes features of an image that are not evident in the original image's spatial domain. This brief contribution proposes a Convolutional Neural Network architecture that combines features from the spatial… read more here.

Keywords: cosine transform; neural networks; discrete cosine; convolutional neural ... See more keywords

An RFID Tag Localization Method Based on Hologram Mask and Discrete Cosine Transform

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Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"

DOI: 10.1109/tim.2021.3132075

Abstract: Indoor radio frequency identification (RFID) tag positioning in strong multipath environments is critical in numerous industrial application scenarios, especially in production-related item monitoring. Among others, synthetic aperture radar (SAR)-based schemes have been developed, reconstructing tag… read more here.

Keywords: cosine transform; model; tag localization; rfid tag ... See more keywords

High-Accuracy and Low-Multiplication Recursive Discrete Cosine Transform Algorithm Design and Its Realization in Mel-Scale Frequency Cepstral Coefficients

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Published in 2024 at "IEEE Transactions on Very Large Scale Integration (VLSI) Systems"

DOI: 10.1109/tvlsi.2024.3422994

Abstract: This brief introduces an innovative recursive discrete cosine transform (DCT) algorithm characterized by its exceptional precision and minimal multiplication requirements. Through the strategic implementation of data reordering and ā€œqā€ value adjustment schemes, the proposed algorithm… read more here.

Keywords: multiplication; recursive discrete; algorithm; cosine transform ... See more keywords

Classification of Severity of Lung Parenchyma Using Saliency and Discrete Cosine Transform Energy in Computed Tomography of Patients With COVID-19

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Published in 2025 at "International Journal of Telemedicine and Applications"

DOI: 10.1155/ijta/4420410

Abstract: This study proposes an automated system for assessing lung damage severity in coronavirus disease 2019 (COVID-19) patients using computed tomography (CT) images. These preprocessed CT images identify the extent of pulmonary parenchyma (PP) and ground-glass… read more here.

Keywords: classification; image; severity; computed tomography ... See more keywords

VLSI design of a fast pipelined 8x8 discrete cosine transform

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Published in 2017 at "International Journal of Electrical and Computer Engineering"

DOI: 10.11591/ijece.v7i3.pp1430-1435

Abstract: This paper presents a Very Large Scale Integrated (VLSI) design and implementation of a fixed-point 8x8 multiplierless Discrete Cosine Transform (DCT) using the ISO/IEC 23002-2 algorithm. The standard DCT algorithm, which is mainly used in… read more here.

Keywords: cosine transform; discrete cosine; vlsi design; design ... See more keywords