Results 31 to 40 of about 133,828 (342)

An improved architecture for the adaptive discrete cosine transform [PDF]

open access: yes, 1996
This paper presents a new approach to the efficient realisation of the discrete cosine transform for the specific case of interlaced image sequence coding.
Martin, F, Bull, DR
core   +1 more source

Multi-Resolution Discrete Cosine Transform Fusion Technique Face Recognition Model

open access: yesData, 2022
This work presents a Multi-Resolution Discrete Cosine Transform (MDCT) fusion technique Fusion Feature-Level Face Recognition Model (FFLFRM) comprising face detection, feature extraction, feature fusion, and face classification.
Bader M. AlFawwaz   +3 more
doaj   +1 more source

DEEP GENERATIVE DISCRETE COSINE TRANSFORM FOR SPECTRAL IMAGE PROCESSING

open access: yesICTACT Journal on Image and Video Processing, 2022
The ever-increasing number of publications and applications in the field of cross-spectral image processing has led to the area receiving greater focus than it previously had.
Mary Florida   +4 more
doaj   +1 more source

Image Compression Based on a Partially Rotated Discrete Cosine Transform With a Principal Orientation

open access: yesIEEE 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
doaj   +1 more source

Log-Spectral Amplitude and Spectral Polarity Estimation in Short-Time Discrete Cosine Transform Domain

open access: yes, 2023
Single-channel speech enhancement based on short-time spectral amplitude (STSA) estimation often uses the unmodified phase spectrum for speech re-synthesis, thereby introducing undesired artifacts to the enhanced speech.
Sisi Shi   +5 more
core   +1 more source

A New Zero-Watermarking Algorithm Resisting Attacks Based on Differences Hashing

open access: yesCybernetics 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
doaj   +1 more source

Pengamanan Pesan pada Steganografi Citra dengan Teknik Penyisipan Spread Spectrum

open access: yesJurnal 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
doaj   +1 more source

METHOD OF REFERENCE SIGNALS CREATING IN NON-DESTRUCTIVE TESTING BASED ON LOW-SPEED IMPACT

open access: yesТехнічна 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
doaj   +1 more source

Fast 2D-DCT implementations for VLIW processors [PDF]

open access: yes, 1999
This paper analyzes various fast 2D-DCT algorithms regarding their suitability for VLIW processors. Operations for truncation or rounding which are usually neglected in proposals for fast algorithms have also been taken into consideration.
C.N. Canagarajah   +5 more
core   +1 more source

DISCRETE COSINE TRANSFORM UNTUK IDENTIFIKASI CITRA HYLOCEREUS COSTARICENSIS

open access: yesSimetris: 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
doaj   +1 more source

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