Results 21 to 30 of about 2,511,720 (249)

Fast intra prediction in the transform domain [PDF]

open access: yes, 2009
In this paper, we present a fast intra prediction method based on separating the transformed coefficients. The prediction block can be obtained from the transformed and quantized neighboring block generating minimum distortion for each DC and AC ...
Kim, Chanyul   +5 more
core   +2 more sources

Image encryption using enhanced DCT transform for frequency domain applications [PDF]

open access: yesMATEC Web of Conferences
improving system performance and reliability. Key leaks and inadequate key strength are common issues with numerical global key models and public block cipher algorithms that use pseudo-random numbers.
Ganesh Bande   +5 more
doaj   +1 more source

A causal model for linear RF systems developed from frequency-domain measured data [PDF]

open access: yes, 2005
With the ever-growing complexity of interconnect networks, models developed from measured data or data from 3-D electromagnetic simulators are increasingly becoming essential. It is to this end that the current contribution is directed. In particular, it
Condon, Marissa   +2 more
core   +2 more sources

A Domain Specific Transformation Language

open access: yesCoRR, 2014
Domain specific languages (DSLs) allow domain experts to model parts of the system under development in a problem-oriented notation that is well-known in the respective domain. The introduction of a DSL is often accompanied the desire to transform its instances.
Bernhard Rumpe, Ingo Weisemöller
openaire   +2 more sources

Transform domain texture synthesis [PDF]

open access: yesSignal Processing: Image Communication, 2008
In this paper, we propose a fast DWT-based multi-resolution texture synthesis algorithm in which coefficient blocks of the spatio-frequency components of the input texture are efficiently stitched together to form the corresponding components of the synthesised output texture.
Dhammike Saranath Wickramanayake   +2 more
openaire   +1 more source

Multiple-Image Hiding by Using Single-Shot Ptychography in Transform Domain

open access: yesIEEE Photonics Journal, 2017
A practical method using single-shot ptychographic imaging (SPI) in the transform domain is proposed for multiple-image hiding. The excellent compressibility of SPI can bring high multiplexing capacity and imperceptibility to the proposed multiple-image ...
Wenhui Xu   +4 more
doaj   +1 more source

Radon Transform Based on Waveform for AVO-Preserving Data Construction

open access: yesApplied Sciences, 2021
The traditional hyperbolic Radon transform suffers from the major problem of how to both obtain a high resolution and preserve the amplitude variation with offset (AVO). In the Radon domain, high resolution (sparseness) is a valid criterion.
Shengchao Wang   +3 more
doaj   +1 more source

CARDIOVASCULAR SIGNAL RATE DETECTION USING FREQUENCY DOMAIN TRANSFORM [PDF]

open access: yesICTACT Journal on Image and Video Processing, 2019
Cardiovascular Rate (HR) is a crucial indicator of people’s physiological state therefore it is important to monitor often. It is an essential parameter in most of the medical diagnosis for innumerable medical condition.
J Hareen Breath Mary, C Rekha
doaj   +1 more source

Application of wavelet transform for PDZ domain classification. [PDF]

open access: yesPLoS ONE, 2015
PDZ domains have been identified as part of an array of signaling proteins that are often unrelated, except for the well-conserved structural PDZ domain they contain.
Khaled Daqrouq   +3 more
doaj   +1 more source

Unsupervised Low-Light Image Enhancement in the Fourier Transform Domain

open access: yesApplied Sciences, 2023
Low-light image enhancement is an important task in computer vision. Deep learning-based low-light image enhancement has made significant progress. But the current methods also face the challenge of relying on a wide variety of low-light/normal-light ...
Feng Ming, Zhihui Wei, Jun Zhang
doaj   +1 more source

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