Digital Image Progressive Fusion Method Based on Discrete Cosine Transform by Jiezi Chen

“…Therefore, a new method for digital image progressive fusion was proposed based on discrete cosine transform, and its effectiveness was verified through experiments. …”
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Robust watermarking algorithm for medical images based on accelerated‐KAZE discrete cosine transform by Dekai Li, Yen‐wei Chen, Jingbing Li, Lei Cao, Uzair Aslam Bhatti, Pengju Zhang

“…A medical image watermarking algorithm based on an accelerated‐KAZE discrete cosine transform (AKAZE‐DCT) is proposed to address the poor robustness of medical image watermarking algorithms to geometric attacks, which leads to low security of the information contained in medical images. …”
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Energy-Efficient Discrete Cosine Transform Architecture Using Reversible Logic for IoT-Enabled Consumer Electronics by Muhammad Awais, Wilayat Khan, Tallha Akram, Yunyoung Nam

“…This paper introduces a novel Discrete Cosine Transform (DCT) architecture implemented using reversible logic to meet the requirements for effective data compression in IoT systems, such as smart surveillance and wearable health monitors. …”
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Discrete Cosine Transform Matrix Based SLM Algorithm for OFDM with Diminished PAPR for M-PSK over Different Subcarriers by Prabal Gupta, Rajiv Kumar Singh, H. Pal Thethi, Balpreet Singh, Santosh Kumar Nanda

“…In the proposed work, the SLM method has been used, but phase arrangement formation is based on the usage of discrete cosine transform (DCT) matrix. In this proposed work, discrete cosine transform matrix has been chosen based on the requirement of optimization so that the arrangement with lowest PAPR can be nominated for the transmission. …”
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Model of Reconfigurable Steganographic System Using Blockchain Technology by E. V. Timoschenko, A. F. Razhkov

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Backpropagation Neural Network Implementation for Medical Image Compression by Kamil Dimililer

“…In this paper, Haar wavelet transform and discrete cosine transform are considered and a neural network is trained to relate the X-ray image contents to their ideal compression method and their optimum compression ratio.…”
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RAM-ROM sebagai Pendukung Algoritma Zigzag Scan Menggunakan Metode Pemetaan pada Kompresi Citra Real-Time by Robby Candra

“…Hal ini bertujuan agar proses scan dapat berlangsung dengan cepat karena proses penulisan dan pembacaan koefisien Discrete Cosine Transform (DCT) dapat dilakukan secara bersamaan di kedua RAM tersebut. …”
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Improved Algorithm for ODCT Computation of a Running Data Sequence by S. Akhter, V. Karwal, R. C. Jain

“…Fast windowed update algorithms capable of independently updating the odd discrete cosine transform (ODCT) and odd discrete sine transform (ODST) of a running data sequence are analytically developed. …”
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Multiobjective Synthesis of Linear Arrays by Using an Improved Genetic Algorithm by Bo Yang

“…To reduce the computation complexity, the repeat calculation of the fitness function in each generation is replaced by a precomputed discrete cosine transform matrix. By transforming the array pattern synthesis into a multiobjective optimization problem, the conflict among the side lobe level (SLL), directivity, and nulls can be efficiently addressed. …”
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Channel Estimation in DCT-Based OFDM by Yulin Wang, Gengxin Zhang, Zhidong Xie, Jing Hu

“…This paper derives the channel estimation of a discrete cosine transform- (DCT-) based orthogonal frequency-division multiplexing (OFDM) system over a frequency-selective multipath fading channel. …”
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Design of an Efficient Real-Time Algorithm Using Reduced Feature Dimension for Recognition of Speed Limit Signs by Hanmin Cho, Seungwha Han, Sun-Young Hwang

“…Linear Discriminant Analysis (LDA) required for classification is performed by using Discrete Cosine Transform (DCT) coefficients. To reduce feature dimension in LDA, DCT coefficients are selected by a devised discriminant function derived from information obtained by training. …”
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Federated Learning Applications in Fingerprint and Finger Vein Recognition by Wang Yongchao

“…One of the frameworks for fingerprint recognition, Federated Learning-Fingerprint Recognition, uses sparse representation techniques such as the Discrete Cosine Transform for data preprocessing. The framework also references the ResNet18 model and reservoir sampling so that each client can participate in training fairly. …”
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A Novel Psychovisual Threshold on Large DCT for Image Compression by Nur Azman Abu, Ferda Ernawan

“…This research study proposes a psychovisual threshold on the large discrete cosine transform (DCT) image block which will be used to automatically generate the much needed quantization tables. …”
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A Packet Loss Concealment Technique Improving Quality of Service for Wideband Speech Coding in Wireless Sensor Networks by Nam In Park, Jin Ah Kang, Seong Ro Lee, Hong Kook Kim

“…It consists of three main functions: packet loss concealment in the narrowband, ABE in the modified discrete cosine transform (MDCT) domain, and smoothing of wideband MDCT coefficients with those of the last good frame. …”
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Assembly Accuracy Analysis Method Based on Multi‐Stage Linearized Contact by Wenbin Tang, Yadong Li, Tong Yan, Min Zhang

“…A model of part surface asperities considering morphological errors is established using the linear superposition of discrete cosine transform (DCT) kernel functions and the assembly interface is simplified. …”
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A New Highly Secure Optical Image Security Technique Using Gyrator Transform for Image Security-Related Applications by L. Anusree, M. Abdul Rahiman

“…Secret information hiding is performed in the Discrete Cosine Transform (DCT) domain to protect the data against noise attacks. …”
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Compressed Measurements Based Spectrum Sensing for Wideband Cognitive Radio Systems by Taha A. Khalaf, Mohammed Y. Abdelsadek, Mohammed Farrag

“…In this paper, we propose a novel compressed detector using energy detection technique on compressed measurements sensed by the discrete cosine transform (DCT) matrix. The proposed algorithm not only reduces the computational complexity but also provides a better performance than the traditional energy detector and the traditional compressed detector in terms of the receiver operating characteristics. …”
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Enhancing Image-Based JPEG Compression: ML-Driven Quantization via DCT Feature Clustering by Shahrzad Sabzavi, Reza Ghaderi

“…The purpose of this research is to explore a novel approach that combines machine learning, discrete cosine transform (DCT) feature clustering, and genetic algorithms to customize image compression methods. …”
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A Multi-Scale Convolutional Residual Time-Frequency Calibration Method for Low-Accuracy Air Pollution Data by Jiahao Liu, Fei Shi, Zhenhong Jia, Jiwei Qin

“…Additionally, the Frequency Enhanced Channel Attention Mechanism (FECAM) uses Discrete Cosine Transform (DCT) to convert time-domain data to frequency-domain, assigning weights to different frequency components to enhance key features and suppress irrelevant ones. …”
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An autoencoder for compressing angle-resolved photoemission spectroscopy data by Steinn Ýmir Ágústsson, Mohammad Ahsanul Haque, Thi Tam Truong, Marco Bianchi, Nikita Klyuchnikov, Davide Mottin, Panagiotis Karras, Philip Hofmann

“…To test the data representation capacity of ARPESNet, we compare k -means clustering quality between data compressed by ARPESNet, data compressed by discrete cosine transform, and raw data, at different noise levels. …”
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