Results 21 to 30 of about 133,828 (342)
Harmonic Convolutional Networks based on Discrete Cosine Transform [PDF]
Pattern Recognition, 2020 Convolutional neural networks (CNNs) learn filters in order to capture local correlation patterns in feature space. In this paper we propose to revert to learning combinations of preset spectral filters by switching to CNNs with harmonic blocks.
Matej Ulicny, V. Krylov, Rozenn Dahyot
semanticscholar +1 more source
A Hybrid Robust Image Watermarking Method Based on DWT-DCT and SIFT for Copyright Protection
Journal of Imaging, 2021 In this paper, a robust hybrid watermarking method based on discrete wavelet transform (DWT), discrete cosine transform (DCT), and scale-invariant feature transformation (SIFT) is proposed.
Mohamed Hamidi +3 more
doaj +1 more source
Image encryption scheme based on alternate quantum walks and discrete cosine transform.
Optics Express, 2021 As an important information medium, the digital image exists widely on the Internet. Quantum walks have the property of encrypting information. For the eneryption problem of optical digital images, an encryption scheme based on discrete cosine transform (
Yulin Ma +4 more
semanticscholar +1 more source
JUTI: Jurnal Ilmiah Teknologi Informasi, 2020 Personal identification can be done by using face, fingerprint, palm prints, eye’s retina, or voice recognition which commonly called as biometric methods. Face recognition is the most popular and widely used among those biometric methods. However, there
Afrizal Laksita Akbar +2 more
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Image Retrieval Method Based on Image Feature Fusion and Discrete Cosine Transform
Applied Sciences, 2021 This paper presents a new content-based image retrieval (CBIR) method based on image feature fusion. The deep features are extracted from object-centric and place-centric deep networks. The discrete cosine transform (DCT) solves the strong correlation of
Dayou Jiang, Jongweon Kim
semanticscholar +1 more source
, 2021 A low-density parity-check (LDPC) coded single-carrier frequency-division multiple access (SC-FDMA) system is proposed for effective image transmission.
Saha, Ritu +9 more
core +1 more source
A Hybrid Model of 2d-DCT and 2d-Mycielski Algorithm for Hourly Global Solar Irradiation
Advances in Electrical and Computer Engineering, 2020 In this work, hourly solar irradiation is defined as a two-dimensional discrete signal. This two-dimensional discrete signal is modeled by a novel hybrid approach, which includes both deterministic and stochastic processes.
FIDAN, M., SERTSOZ, M., KURBAN, M.
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Jurnal Nasional Pendidikan Teknik Informatika (JANAPATI), 2020 Banyaknya penyebaran citra digital menyebabkan maraknya tindakan seperti duplikasi dan penyebaran data secara ilegal, serta penyalahgunaan Hak akan Kekayaan dan Intelektual (HAKI).
Fitria Ilhami Ikromina
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ADAPTIVE THREE-DIMENSIONAL DISCRETE COSINE TRANSFORM OF TRANSPORT IMAGES [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2019 Subject of Research. The paper presents encoding and decoding method for video information obtained from video surveillance cameras in transport. The method is based on the usage of adaptive three-dimensional discrete cosine transform.
Y. A. Hasan, S. S. Fahmi
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Comparison of Image Compressions: Analog Transformations
Proceedings, 2020 A comparison between the four most used transforms, the discrete Fourier transform (DFT), discrete cosine transform (DCT), the Walsh–Hadamard transform (WHT) and the Haar-wavelet transform (DWT), for the transmission of analog images, varying their ...
Jose Balsa
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