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   Articles with "discrete cosine" as a keyword



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

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recommendations! 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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recommendations! 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
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Linear dynamics of discrete cosine functions on solid Banach function spaces

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recommendations! Published in 2021 at "Positivity"

DOI: 10.1007/s11117-021-00823-8

Abstract: In this paper, we give some sufficient and necessary conditions for discrete cosine operator functions on solid Banach function spaces to be chaotic or topologically transitive. read more here.

Keywords: functions solid; solid banach; banach function; function spaces ... See more keywords

Biotypic classification of facial profiles using discrete cosine transforms on lateral radiographs.

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recommendations! Published in 2021 at "Archives of oral biology"

DOI: 10.1016/j.archoralbio.2021.105249

Abstract: OBJECTIVE The aim of the study was to use discrete cosine transforms to graph soft tissue curves in lateral cephalometric radiographs and, with the obtained mathematical values, to group these curves by both traditional biotypes… read more here.

Keywords: cosine transforms; classification; discrete cosine; lateral radiographs ... See more keywords

Discrete cosine single-pixel microscopic compressive imaging via fast binary modulation

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recommendations! Published in 2020 at "Optics Communications"

DOI: 10.1016/j.optcom.2019.124512

Abstract: Abstract Single-pixel imaging technology has significant imaging advantages in the invisible wavelength and low light environment. Considering the energy compressive characteristic of discrete cosine spectrum, a single-pixel microscopic compressive imaging method based on the two-dimensional… read more here.

Keywords: pixel microscopic; single pixel; discrete cosine; cosine ... See more keywords

6D-Chaotic System and 2D Fractional Discrete Cosine Transform Based Encryption of Biometric Templates

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recommendations! Published in 2021 at "IEEE Access"

DOI: 10.1109/access.2021.3097881

Abstract: A new algorithm for biometric templates using a 6D-chaotic system, and 2D fractional discrete cosine transform (FrDCT) is proposed in this paper. In this technique, the $k$ biometric templates are represented into three groups. After… read more here.

Keywords: system; biometric templates; fractional discrete; chaotic system ... See more keywords

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

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recommendations! 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

Lightweight Denoising Autoencoder Design for Noise Removal in Electrocardiography

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recommendations! Published in 2022 at "IEEE Access"

DOI: 10.1109/access.2022.3206620

Abstract: 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 efficiently removed the… read more here.

Keywords: noise; denoising autoencoder; electrocardiography; transform ... See more keywords

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

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recommendations! 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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recommendations! 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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recommendations! 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