Results 21 to 30 of about 8,766 (157)
IEEE Access, 2021 Image transforms are necessary for image and video compression. Analytic transforms are powerful in compacting natural signals for wider exploitation. Various methods have been introduced to represent such data as a small number of bases, and several of ...
Gihwan Lee, Yoonsik Choe
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A New Zero-Watermarking Algorithm Resisting Attacks Based on Differences Hashing
Cybernetics and Information Technologies, 2016 Medical volume data containing patient information is often faced with various attacks in the transmission process. In order to enhance the medical information system security, and effectively solve the problem of medical volume data protection, a new ...
Han Baoru, Li Jingbing
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A Discrete Fourier-Cosine Transform Chip [PDF]
IEEE Journal on Selected Areas in Communications, 1986 An 8-point Fourier-cosine transform chip designed for a data rate of 100 Mbits/s is described. The top-down design is presented step by step, including algorithm modification for VLSI suitability, architectural choices, testing overhead, internal precision assignments, mask generation, and finally, verification of the layout.
Martin Vetterli, Adriaan Ligtenberg
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Pengamanan Pesan pada Steganografi Citra dengan Teknik Penyisipan Spread Spectrum
Jurnal Elkomika, 2019 ABSTRAK Pada studi ini, dilakukan penggabungan metode - metode untuk memperkuat dan meningkatkan sisi keamanan proses pertukaran informasi atau pesan digital.
SOFIA SAIDAH +2 more
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METHOD OF REFERENCE SIGNALS CREATING IN NON-DESTRUCTIVE TESTING BASED ON LOW-SPEED IMPACT
Технічна електродинаміка, 2021 The article describes the approach to the formation of a simulation model of information signals, which are typical for objects with different types of defects.
В.С. Еременко +2 more
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DISCRETE COSINE TRANSFORM UNTUK IDENTIFIKASI CITRA HYLOCEREUS COSTARICENSIS
Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer, 2015 ABSTRAK Pengolahan citra digital memiliki peranan sangat luas terhadap kehidupan sehari- hari. Salah satunya dapat digunakan untuk mengidentifikasi citra buah untuk mengetahui tingkat kematangan buah tersebut.
Resty Wulanningrum +1 more
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Three-dimensional nonrigid reconstruction based on probability model
International Journal of Advanced Robotic Systems, 2020 Most nonrigid motions use shape-based methods to solve the problem; however, the use of discrete cosine transform trajectory-based methods to solve the nonrigid motion problem is also very prominent.
Yaming Wang +3 more
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CHARACTERIZATION OF BREAST TISSUES IN COMBINED TRANSFORMS DOMAIN USING SUPPORT VECTOR MACHINES [PDF]
ICTACT Journal on Image and Video Processing, 2011 Mammography is a well established imaging technique for showing tissue abnormalities of breast and has been proven to reduce death rate due to breast cancer in screened populations of women.
B.N. Prathibha, V. Sadasivam
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Directional Analytic Discrete Cosine Frames
IEEE Access, 2022 Block frames called directional analytic discrete cosine frames (DADCFs) are proposed for sparse image representation. In contrast to conventional overlapped frames, the proposed DADCFs require a reduced amount of 1) computational complexity, 2) memory ...
Seisuke Kyochi +2 more
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Journal of King Saud University: Computer and Information Sciences, 2022 Digital data sharing is increased day by day due to the rapid access of the Internet by mass people. Multimedia, for example text, image, video, and audio can be easily accessed by unauthorized users.
Mahbuba Begum +2 more
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