Results 41 to 50 of about 10,977 (213)

JPEG Encoder using Discrete Cosine Transform & Inverse Discrete Cosine Transform

IOSR Journal of Electronics and Communication Engineering, 2013
In the past decade, the advancement in data communications was significant during explosive growth of the Internet, which led to the demand for using multimedia in portable devices. Video and Audio data streams require a huge amount of bandwidth to be transferred in an uncompressed form.
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New single-carrier transceiver scheme based on the discrete sine transform

The Journal of Engineering, 2014
A discrete sine transform (DST)-based single-carrier transceiver scheme for broadband wireless communications is proposed and investigated. The proposed scheme uses a DST rather than the conventional discrete Fourier transform (DFT) as a basis function ...
Faisal Al-kamali
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DCKTKT: A New Discrete Cosine-Krawtchouk-Tchebichef Transform

Journal of Engineering
Real-world signals are often intricate and difficult to analyze. Therefore, to facilitate the analysis of signal components, the researchers represent the signal in different domains (transform domain), providing a new perspective and offering ...
Mariam Taha Yaseen, Sadiq H. Abdulhussain   +1 more
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Digital Image Progressive Fusion Method Based on Discrete Cosine Transform

Journal of Mathematics, 2023
The current progressive fusion methods for digital images have poor denoising performance, which leads to a decrease in image quality after progressive fusion.
Jiezi Chen
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Automated surface texture analysis via Discrete Cosine Transform and Discrete Wavelet Transform [PDF]

, 2022
Melih C. Yesilli, Jisheng Chen, Firas A. Khasawneh, Yang Guo   +3 more
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On discrete cosine transform

Nigerian Journal of Technological Research, 2013
The discrete cosine transform (DCT), introduced by Ahmed, Natarajan and Rao, has been used in many applications of digital signal processing, data compression and information hiding. There are four types of the discrete cosine transform. In simulating the discrete cosine transform, we propose a generalized discrete cosine transform with three ...
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DctViT: Discrete Cosine Transform meet vision transformers

Neural Networks
Vision transformers (ViTs) have become one of the dominant frameworks for vision tasks in recent years because of their ability to efficiently capture long-range dependencies in image recognition tasks using self-attention. In fact, both CNNs and ViTs have advantages and disadvantages in vision tasks, and some studies suggest that the use of both may ...
Keke Su, Lihua Cao, Botong Zhao, Ning Li, Di Wu, Xiyu Han, Yangfan Liu   +6 more
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Efficient Data Acquisition and Reconstruction in Ultrasound Imaging

IEEE Access
Ultrasound is a prominent imaging technique used in a variety of applications. Due to very high frame rate, the amount of raw data obtained while using an ultrasonic device is large. Thus, data management and storage are posing significant problems.
Sai Konda, Hicham Chaoui
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DCT-Conv: Coding filters in convolutional networks with Discrete Cosine Transform [PDF]

, 2020
Karol Chęciński, Paweł Wawrzyński
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Discrete cosine transform based de-noising of glottal pulses

Archives of Acoustics, 2004
Reliable estimates of the glottal function are of major importance in speech/voice processing for the characterization of voicing conditions, description of various phonation types, and identification of their parameters.
C. Pastiadis, G. Papanikolaou
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