Results 41 to 50 of about 35,286 (256)

Extending and Matching a High Dynamic Range Image from a Single Image

open access: yesSensors, 2020
Extending the dynamic range can present much richer contrasts and physical information from the traditional low dynamic range (LDR) images. To tackle this, we propose a method to generate a high dynamic range image from a single LDR image. In addition, a
Van Luan Tran, Huei-Yung Lin
doaj   +1 more source

Low-illumination image enhancement with logarithmic tone mapping

open access: yesOpen Computer Science, 2023
For low-illumination video sequences, some existing enhancement algorithms have some problems, such as image over-enhancement, color distortion, and inadequate detail processing.
Du Changqing, Li Jingjian, Yuan Bin
doaj   +1 more source

High dynamic range imaging for archaeological recording [PDF]

open access: yes, 2010
This paper notes the adoption of digital photography as a primary recording means within archaeology, and reviews some issues and problems that this presents.
Wheatley, David
core   +1 more source

Video enhancement using adaptive spatio-temporal connective filter and piecewise mapping [PDF]

open access: yes, 2008
This paper presents a novel video enhancement system based on an adaptive spatio-temporal connective (ASTC) noise filter and an adaptive piecewise mapping function (APMF).
A Polesel   +31 more
core   +4 more sources

Three-Stage Tone Mapping Algorithm

open access: yesElectronics, 2022
In this paper, a tone mapping algorithm is presented to map real-world luminance into displayed luminance. Our purpose is to reveal the local contrast of real-world scenes on a conventional monitor. Around this point, we propose a three-stage algorithm to visualize high dynamic range images.
Lanfei Zhao, Ruiyang Sun, Jun Wang
openaire   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Multi-Layer Decomposition and Synthesis of HDR Images to Improve High-Saturation Boundaries

open access: yesMathematics, 2023
Recently, high dynamic range (HDR) imaging has been used in many fields such as display, computer graphics, and digital cameras. Various tone mapping operators (TMOs) are used for effective HDR imaging.
Hyuk-Ju Kwon, Sung-Hak Lee
doaj   +1 more source

IMPACT OF TONE MAPPING IN HIGH DYNAMIC RANGE IMAGE COMPRESSION [PDF]

open access: yes, 2014
International audienceTone mapping or range reduction is often used in High Dynamic Range (HDR) visual signal compression to take advantage of the existing image/video coding architectures. Thus, it is important to study the impact of tone mapping on the
Le Callet, Patrick   +3 more
core   +1 more source

Image Sensing Scheme Enabling Fully-Programmable Light Adaptation and Tone Mapping with a Single Exposure [PDF]

open access: yes, 2016
This letter presents new insights into a high dynamic range (HDR) technique recently reported. We demonstrate that two intertwined photodiodes per pixel can perform tone mapping under unconstrained illumination conditions with a single exposure ...
Carmona Galán, Ricardo   +3 more
core   +2 more sources

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

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