Results 21 to 30 of about 57,669 (242)
Two novel nonlinear companding schemes with iterative receiver to reduce PAPR in multi-carrier modulation systems [PDF]
, 2006 Companding transform is an efficient and simple method to reduce the Peak-to-Average Power Ratio (PAPR) for Multi-Carrier Modulation (MCM) systems.
Guo, P, Jiang, T, Qu, D, Song, Y, Yao, W
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Rectangularity and paramonotonicity of maximally monotone operators [PDF]
, 2012 Maximally monotone operators play a key role in modern optimization and variational analysis. Two useful subclasses are rectangular (also known as star monotone) and paramonotone operators, which were introduced by Brezis and Haraux, and by Censor, Iusem
Bauschke, Heinz H. +2 more
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Inverse Tone Mapping Operator Using Sequential Deep Neural Networks Based on the Human Visual System
IEEE Access, 2018 Conventional digital displays show images with much less dynamic range than that of human visual perception. High-dynamic range (HDR) displays are being developed for viewing images with higher dynamic range than that of conventional low-dynamic range ...
Hanbyol Jang +3 more
doaj +1 more source
A proximal approach to the inversion of ill-conditioned matrices [PDF]
, 2009 We propose a general proximal algorithm for the inversion of ill-conditioned matrices. This algorithm is based on a variational characterization of pseudo-inverses. We show that a particular instance of it (with constant regularization parameter) belongs
Maréchal, Pierre, Rondepierre, Aude
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Cyclic Learning-Based Lightweight Network for Inverse Tone Mapping
Electronics, 2022 Recent studies on inverse tone mapping (iTM) have moved toward indirect mapping, which generates a stack of low dynamic range (LDR) images with multiple exposure values (multi-EV stack) and then merges them. In order to generate multi-EV stack(s), several large-scale networks with more than 20 M parameters have been proposed, but their high dynamic ...
Jiyun Park, Byung Cheol Song
openaire +1 more source
, 2015 Undoing the image formation process and therefore decomposing appearance into its intrinsic properties is a challenging task due to the under-constraint nature of this inverse problem.
Fritz, Mario +4 more
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Relationships between human auditory cortical structure and function [PDF]
, 2003 The human auditory cortex comprises multiple areas, largely distributed across the supratemporal plane, but the precise number and configuration of auditory areas and their functional significance have not yet been clearly established.
Hall, DA, Hart, HC, Johnsrude, IS
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A Psychophysical Evaluation of Inverse Tone Mapping Techniques
Computer Graphics Forum, 2009 AbstractIn recent years inverse tone mapping techniques have been proposed for enhancing low‐dynamic range (LDR) content for a high‐dynamic range (HDR) experience on HDR displays, and for image based lighting. In this paper, we present a psychophysical study to evaluate the performance of inverse (reverse) tone mapping algorithms.
Banterle, F. +5 more
openaire +3 more sources
Low-Complexity Distortionless Techniques for Peak Power Reduction in OFDM Communication Systems
Journal of Computer Networks and Communications, 2012 A high peak-to-average power ratio (PAPR) is one of the major drawbacks to using orthogonal frequency division multiplexing (OFDM) modulation. The three most effective distortionless techniques for PAPR reduction are partial transmit sequence (PTS ...
A. Ghassemi, T. A. Gulliver
doaj +1 more source
Improvement of JPEG XT Floating-Point HDR Image Coding Using Region Adaptive Prediction
IEEE Access, 2018 Displays capable of representing high-dynamic range (HDR) images were recently released in the digital consumer electronics market, and consumers have become increasingly interested in HDR images.
Oh-Jin Kwon +2 more
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