Results 31 to 40 of about 8,292 (164)
Discover Applied SciencesCardiovascular diseases (CVD) are the most common cause of death. Electrocardiography (ECG) is a preferred non-invasive method for detecting heart diseases. Atrial fibrillation (AF) is a common cardiac disease.
Mohamed Moustafa Azmy
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Results in Optics, 2020 In this paper, a new asymmetric method is presented to encrypt and compress color images using discrete cosine transform in Fresnel domain. First, the input color image is decomposed into three channels: red, green and blue.
Eakta Kumari +3 more
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The Discrete Cosine Transform on Triangles [PDF]
ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2019 The discrete cosine transform is a valuable tool in analysis of data on undirected rectangular grids, like images. In this paper it is shown how one can define an analogue of the discrete cosine transform on triangles. This is done by combining algebraic signal processing theory with a specific kind of multivariate Chebyshev polynomials.
Seifert, Bastian, Hüper, Knut
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Effect of DCT Image Compression on Eye Gaze Direction Detection
ITM Web of Conferences, 2018 The prediction of eye direction detection is the one of the popular research topic in human computer interaction area. This paper defines eye gaze detection by using Discrete Cosine Transform.
Dimililer Kamil +5 more
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Image Hiding Using Discrete Cosine Transform
مجلة كلية التربية للبنات, 2019 Steganography is a mean of hiding information within a more obvious form of communication. It exploits the use of host data to hide a piece of information in such a way that it is imperceptible to human observer.
ايمان محمد جعفر فرح جاسم محمد
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Hybrid Algorithm Based on Hyper Spectral Noise Removal for Satellite Image
EAI Endorsed Transactions on Energy Web, 2020 Usually the image obtained from a sensor is blurred by noise. Such noises are identified and eliminated by the procedure called denoising. The cross breed (Hybrid) algorithm is a popular technique that has been utilized recently.
N. Hema Rajini
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Evaluating The Performance of DWT-DCT Feature Extraction in Guitar Chord Recognition
International Journal of Applied Sciences and Smart TechnologiesThis study presents advancements in audio signal processing techniques, specifically in enhancing the efficiency of guitar chord recognition. It is a continuation of the previous studies, which also aim at minimizing the feature extraction length with ...
Linggo Sumarno
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Comparison of discrete transforms for deep‐neural‐networks‐based speech enhancement
IET Signal Processing, 2022 In recent studies of speech enhancement, a deep‐learning model is trained to predict clean speech spectra from the known noisy spectra of speech. Rather than using the traditional discrete Fourier transform (DFT), this paper considers other well‐known ...
Wissam A. Jassim, Naomi Harte
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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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