Results 31 to 40 of about 2,511,720 (249)

Transform Domain Morphological Filters [PDF]

open access: yes, 2023
In this thesis, we have studied the concept of mathematical morphology and morphological operators to devise new methods to recognise and reassemble paths and patterns through point-clouds. These are methods which act on the local or global shape-related
Babai, Mohammad   +1 more
core   +13 more sources

Efficient MPEG-2 to H.264/AVC Transcoding of Intra-Coded Video

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
This paper presents an efficient transform-domain architecture and corresponding mode decision algorithms for transcoding intra-coded video from MPEG-2 to H.264/AVC. Low complexity is achieved in several ways.
Yeping Su   +3 more
doaj   +2 more sources

Remote Sensing Image Fusion Based on Discrete Fractional Random Transform for Modified IHS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
The traditional IHS fusion, as a spatial domain method, mostly achieves the good spatial quality but the spectral distortion. The discrete fractional random transform (DFRNT) fusion, as a transform domain method, can maintain the high spectral ...
Q. Guo, A. Li, H. Q. Zhang, Z. K. Feng
doaj   +1 more source

THE PROBLEM OF CONTOURS IN TRANSFORM IMAGE CODING [PDF]

open access: yes, 2008
Object contours contribute to a large extent to the perceived quality of an image but are typically quite hard to compress. As a matter of facts, many coding algorithms fail to describe efficiently this information.
Parrilli, Sara
core   +1 more source

Algebraic domains of natural transformations

open access: yesTheoretical Computer Science, 1994
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Adrian Fiech, Michael Huth 0001
openaire   +2 more sources

Compensation of linear distortions by using XPM with parabolic pulses as a time lens [PDF]

open access: yes, 2008
We experimentally demonstrate an all-optical all-fiberized scheme that can eliminate linear perturbations in the time domain. The technique relies on performing optical Fourier transforms on distorted signals to move their distortions from the time to ...
Ibsen, M.   +5 more
core   +1 more source

Sampling in the analysis transform domain

open access: yesApplied and Computational Harmonic Analysis, 2016
Many signal and image processing applications have benefited remarkably from the fact that the underlying signals reside in a low dimensional subspace. One of the main models for such a low dimensionality is the sparsity one. Within this framework there are two main options for the sparse modeling: the synthesis and the analysis ones, where the first ...
openaire   +4 more sources

Lossy transmission line response via numerical Laplace transform inversion [PDF]

open access: yes, 1994
An efficient transient analysis of lossy lines with nonlinear loads requires the ability to compute and represent a suitable set of line impulse responses.
F.G. Canavero   +3 more
core   +1 more source

Radar HRRP Sequence Target Recognition Based on a Lightweight Spatiotemporal Fusion Network

open access: yesSensors
High-resolution range profile (HRRP) sequence recognition in radar automatic target recognition faces several practical challenges, including severe category imbalance, degradation of robustness under complex and variable operating conditions, and strict
Xiang Li   +4 more
doaj   +1 more source

Fuzzy Contrast Enhancement System with Multiple Transform Domain Operations

open access: yesAdvances in Electrical and Computer Engineering, 2021
Medical images provide an excellent way to identify the presence of diseases in a highly acceptable and correct manner. These images, however, due to the physical limitations of imaging instruments, have various types of artifacts.
JAVID, T., ABID, M.
doaj   +1 more source

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