Fast multiplierless approximations of the DCT with the lifting scheme
We present the design, implementation, and application of several families of fast
multiplierless approximations of the discrete cosine transform (DCT) with the lifting scheme …
multiplierless approximations of the discrete cosine transform (DCT) with the lifting scheme …
[LIBRO][B] Brief notes in advanced DSP: Fourier analysis with MATLAB
AM Grigoryan, M Grigoryan - 2018 - taylorfrancis.com
Based on the authors' research in Fourier analysis, Brief Notes in Advanced DSP: Fourier
Analysis with MATLAB® addresses many concepts and applications of digital signal …
Analysis with MATLAB® addresses many concepts and applications of digital signal …
Integer DCT based on direct-lifting of DCT-IDCT for lossless-to-lossy image coding
A discrete cosine transform (DCT) can be easily implemented in software and hardware for
the JPEG and MPEG formats. However, even though some integer DCTs (IntDCTs) for …
the JPEG and MPEG formats. However, even though some integer DCTs (IntDCTs) for …
Audio coding based on integer transforms
R Geiger, T Sporer, J Koller, K Brandenburg - Audio Engineering Society …, 2001 - aes.org
Most of the current audio coding schemes use transforms like the Modified Discrete Cosine
Transform (MDCT) to calculate a blockwise frequency representation of the audio signal …
Transform (MDCT) to calculate a blockwise frequency representation of the audio signal …
Adaptive medical image compression based on lossy and lossless embedded zerotree methods
SA Elhannachi, N Benamrane… - Journal of Information …, 2017 - uphf.hal.science
Since the progress of digital medical imaging techniques, it has been needed to compress
the variety of medical images. In medical imaging, reversible compression of image's region …
the variety of medical images. In medical imaging, reversible compression of image's region …
On confidentiality-preserving real-time locking protocols
M Völp, B Engel, CJ Hamann… - 2013 IEEE 19th Real …, 2013 - ieeexplore.ieee.org
Coordinating access to shared resources is a challenging task, in particular if real-time and
security aspects have to be integrated into the same system. However, rather than …
security aspects have to be integrated into the same system. However, rather than …
IntMDCT-A link between perceptual and lossless audio coding
R Geiger, J Herre, J Koller… - 2002 IEEE International …, 2002 - ieeexplore.ieee.org
The Modified Discrete Cosine Transform (MDCT) is widely used in modem perceptual audio
coding schemes. In this paper we present an integer approximation of this lapped transform …
coding schemes. In this paper we present an integer approximation of this lapped transform …
Invertible integer DCT algorithms
G Plonka, M Tasche - Applied and Computational Harmonic Analysis, 2003 - Elsevier
Integer DCTs have important applications in lossless coding. In this paper, an integer DCT of
radix-2 length n is understood to be a nonlinear,(left-) invertible map** which acts on Z n …
radix-2 length n is understood to be a nonlinear,(left-) invertible map** which acts on Z n …
A global method for invertible integer DCT and integer wavelet algorithms
G Plonka - Applied and Computational Harmonic Analysis, 2004 - Elsevier
In this paper we present a new global method to derive invertible integer-to-integer
map**s from given linear map**s F ̂: R n↦ R n. If F ̂ is given by F ̂ (x)= H nx and Hn …
map**s from given linear map**s F ̂: R n↦ R n. If F ̂ is given by F ̂ (x)= H nx and Hn …
System and method for a media codec employing a reversible transform obtained via matrix lifting
J Li - US Patent 7,315,822, 2008 - Google Patents
(57) ABSTRACT A system and method for encoding and/or decoding a signal, Such as an
audio signal, employing a reversible transform obtained via matrix lifting. This reversible …
audio signal, employing a reversible transform obtained via matrix lifting. This reversible …