Results 21 to 30 of about 367,186 (258)

Exploiting Light Polarization for Deep HDR Imaging from a Single Exposure

open access: yesSensors, 2023
In computational photography, high dynamic range (HDR) imaging refers to the family of techniques used to recover a wider range of intensity values compared to the limited range provided by standard sensors.
Mara Pistellato   +2 more
doaj   +1 more source

High-Dynamic-Range CT Reconstruction Based on Varying Tube-Voltage Imaging. [PDF]

open access: yesPLoS ONE, 2015
For complicated structural components characterized by wide X-ray attenuation ranges, the conventional computed tomography (CT) imaging using a single tube-voltage at each rotation angle cannot obtain all structural information.
Ping Chen, Yan Han, Jinxiao Pan
doaj   +1 more source

High Dynamic Range Imaging with TDC-Based CMOS SPAD Arrays

open access: yesInstruments, 2019
This paper investigates the use of image sensors based on complementary metal−oxide−semiconductor (CMOS) single-photon avalanche diodes (SPADs) in high dynamic range (HDR) imaging by combining photon counts and timestamps. The proposed method
Majid Zarghami   +3 more
doaj   +1 more source

Sparse signal recovery from modulo observations

open access: yesEURASIP Journal on Advances in Signal Processing, 2021
We consider the problem of reconstructing a signal from under-determined modulo observations (or measurements). This observation model is inspired by a relatively new imaging mechanism called modulo imaging, which can be used to extend the dynamic range ...
Viraj Shah, Chinmay Hegde
doaj   +1 more source

RADIANCE DOMAIN COMPOSITING FOR HIGH DYNAMIC RANGE IMAGING [PDF]

open access: yesICTACT Journal on Image and Video Processing, 2013
High dynamic range imaging aims at creating an image with a range of intensity variations larger than the range supported by a camera sensor. Most commonly used methods combine multiple exposure low dynamic range (LDR) images, to obtain the high dynamic ...
M.R. Renu
doaj  

Measuring High Dynamic Range Spectral Reflectance of Artworks through an Image Capture Matrix Hyperspectral Camera

open access: yesSensors, 2022
Commercial hyperspectral imaging systems typically use CCD or CMOS sensors. These types of sensors have a limited dynamic range and non-linear response. This means that when evaluating an artwork under uncontrolled lighting conditions and with light and ...
Ángela Gómez Manzanares   +4 more
doaj   +1 more source

High Dynamic Range Imaging by Perceptual Logarithmic Exposure Merging

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2015
In this paper we emphasize a similarity between the logarithmic type image processing (LTIP) model and the Naka–Rushton model of the human visual system (HVS).
Florea Corneliu   +2 more
doaj   +1 more source

High Dynamic Range and Super-Resolution Imaging From a Single Image

open access: yesIEEE Access, 2018
This paper presents an algorithm for high dynamic range (HDR) and super-resolution (SR) imaging from a single image. First, we propose a new single image HDR imaging (HDRI) method based on the Retinex approach and exploit a recent single image SR method ...
Jae Sung Park, Jae Woong Soh, Nam Ik Cho
doaj   +1 more source

High Dynamic Range Imaging via Visual Attention Modules

open access: yesIEEE Access
Thanks to High Dynamic Range (HDR) imaging methods, the scope of photography has seen profound changes recently. To be more specific, such methods try to reconstruct the lost luminosity of the real world caused by the limitation of regular cameras from ...
Ali Reza Omrani, Davide Moroni
doaj   +1 more source

High Dynamic Range Spectral Imaging Pipeline For Multispectral Filter Array Cameras

open access: yesSensors, 2017
Spectral filter arrays imaging exhibits a strong similarity with color filter arrays. This permits us to embed this technology in practical vision systems with little adaptation of the existing solutions.
Pierre-Jean Lapray   +2 more
doaj   +1 more source

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