Results 41 to 50 of about 8,292 (164)
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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DCKTKT: A New Discrete Cosine-Krawtchouk-Tchebichef Transform
Journal of EngineeringReal-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 +1 more
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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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Design of Optimized Hardware Architecture for Discrete Cosine Transform using Loeffler’s Algorithm
Emitter: International Journal of Engineering TechnologyThe Discrete Cosine Transform (DCT) is the most commonly used transformation technique in image processing applications for data compression.
CHINMAYI S V, VEENA M B
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DctViT: Discrete Cosine Transform meet vision transformers
Neural NetworksVision 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 +6 more
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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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Efficient Data Acquisition and Reconstruction in Ultrasound Imaging
IEEE AccessUltrasound 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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Text-image watermarking based on integer wavelet transform (IWT) and discrete cosine transform (DCT)
Applied Computing and Informatics, 2019 Text-images still have a great importance, despite the spread of electronic texts. Text-images are protected using digital watermarking. This paper proposes a watermarking method applied to text-images.
Reem A. Alotaibi, Lamiaa A. Elrefaei
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Computation of Hilbert Transform via Discrete Cosine Transform
Journal of Signal and Information Processing, 2010 Hilbert transform (HT) is an important tool in constructing analytic signals for various purposes, such as envelope and instantaneous frequency analysis, amplitude modulation, shift invariant wavelet analysis and Hilbert-Huang decompo-sition. In this work we introduce a method for computation of HT based on the discrete cosine transform (DCT).
Olkkonen, H. +3 more
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DCT-ViT: High-Frequency Pruned Vision Transformer With Discrete Cosine Transform
IEEE AccessTransformers have demonstrated notable efficacy in computer vision, extending beyond their initial success in natural language processing. The application of vision transformers (ViTs) to resource-constrained mobile and edge devices is hampered by their ...
Jongho Lee, Hyun Kim
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