Results 21 to 30 of about 1,115,706 (301)

High dynamic range spatial mode decomposition

open access: yesOptics Express, 2020
An accurate readout of low-power optical higher-order spatial modes is of increasing importance to the precision metrology community. Mode sensors are used to prevent mode mismatches from degrading quantum and thermal noise mitigation strategies. Direct mode analysis sensors (MODAN) are a promising technology for real-time monitoring of arbitrary ...
A. W. Jones   +3 more
openaire   +3 more sources

High-dynamic-range imaging for cloud segmentation [PDF]

open access: yesAtmospheric Measurement Techniques, 2018
Sky–cloud images obtained from ground-based sky cameras are usually captured using a fisheye lens with a wide field of view. However, the sky exhibits a large dynamic range in terms of luminance, more than a conventional camera can capture. It is thus
S. Dev   +4 more
doaj   +1 more source

Perceptual Tone Mapping Model for High Dynamic Range Imaging

open access: yesIEEE Access, 2023
One of the key challenges in tone mapping is to preserve the perceptual quality of high dynamic range (HDR) images when mapping them to standard dynamic range (SDR) displays.
Imran Mehmood   +3 more
doaj   +1 more source

Exposure-Structure Blending Network for High Dynamic Range Imaging of Dynamic Scenes

open access: yesIEEE Access, 2020
This paper presents a deep end-to-end network for high dynamic range (HDR) imaging of dynamic scenes with background and foreground motions. Generating an HDR image from a sequence of multi-exposure images is a challenging process when the images have ...
Sang-Hoon Lee, Haesoo Chung, Nam Ik Cho
doaj   +1 more source

High-throughput high-dynamic range imaging by spatiotemporally structured illumination

open access: yesAPL Photonics, 2022
Recent advances in biochemistry and optics have enabled observation of the faintest signals from even single molecules. However, although biological samples can have varying degrees of fluorescence expression ranging from a single to thousands of ...
Taeseong Woo   +7 more
doaj   +1 more source

Real-time high dynamic range laser scanning microscopy

open access: yesNature Communications, 2016
Confocal and multiphoton fluorescence microscopy often suffers from low dynamic range. Here the authors develop a high dynamic range, laser scanning fluorescence technique by simultaneously recording different light intensity ranges.
C. Vinegoni   +6 more
doaj   +1 more source

Deep Chain HDRI: Reconstructing a High Dynamic Range Image from a Single Low Dynamic Range Image

open access: yesIEEE Access, 2018
Recently, high dynamic range (HDR) imaging has attracted much attention as a technology to reflect human visual characteristics owing to the development of the display and camera technology.
Siyeong Lee, Gwon Hwan An, Suk-Ju Kang
doaj   +1 more source

TONE COMPRESSION ALGORITHM FOR HIGH DYNAMIC RANGE MEDICAL IMAGES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
We propose here an HDR compression method for medical images based on a windowing operator, an adaptive tone mapping operator, and the probabilistic normal-gamma model.
I. A. Gracheva, A. V. Kopylov
doaj   +1 more source

Asymptotic Dynamics of High Dynamic Range Stratified Turbulence

open access: yesPhysical Review Letters, 2019
Direct numerical simulations of homogeneous sheared and stably stratified turbulence are considered to probe the asymptotic high-dynamic range regime suggested by Gargett et al. 1984 and Shih et al. 2005. We consider statistically stationary configurations of the flow that span three decades in dynamic range defined by the separation between the ...
Portwood, GD   +2 more
openaire   +4 more sources

COMPRESSION OF HIGH DYNAMIC RANGE OF SAR IMAGES

open access: yesСистемный анализ и прикладная информатика, 2018
The paper presents results of our experiments on compression of the high dynamic range SAR images. The range is equal to 16-bit. Objectives of study were comparison of known approaches to compression of the high dynamic range images; selection of optimal
Yu. I. Golub
doaj   +1 more source

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