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Superresolution under Photometric Diversity of Images [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
Superresolution (SR) is a well-known technique to increase the quality of an image using multiple overlapping pictures of a scene. SR requires accurate registration of the images, both geometrically and photometrically.
Bahadir K. Gunturk, Murat Gevrekci
doaj   +3 more sources

A picture is worth a thousand diffraction spots: using photometry and computer vision to perform rapid high-throughput sample-versatile serial crystallography [PDF]

open access: yesIUCrJ
The `photometric selection' approach as a high throughput, sample tolerant, low cost and highly automatable method of carrying out serial crystallography is presented. Crystalline samples are loaded and distributed onto a simple transparent substrate and
Ben A. Coulson   +5 more
doaj   +2 more sources

Three-Dimensional Reconstruction with a Laser Line Based on Image In-Painting and Multi-Spectral Photometric Stereo

open access: yesSensors, 2021
This paper presents a multi-spectral photometric stereo (MPS) method based on image in-painting, which can reconstruct the shape using a multi-spectral image with a laser line.
Liang Lu   +4 more
doaj   +3 more sources

Low-Light Image Enhancement Using Photometric Alignment with Hierarchy Pyramid Network

open access: yesSensors, 2022
Low-light image enhancement can effectively assist high-level vision tasks that often fail in poor illumination conditions. Most previous data-driven methods, however, implemented enhancement directly from severely degraded low-light images that may ...
Jing Ye   +3 more
doaj   +3 more sources

PICZL: Image-based photometric redshifts for AGN

open access: yesAstronomy and Astrophysics
Context. Computing reliable photometric redshifts (photo-z) for active galactic nuclei (AGN) is a challenging task, primarily due to the complex interplay between the unresolved relative emissions associated with the supermassive black hole and its host galaxy.
Mara Salvato   +2 more
exaly   +4 more sources

INVESTIGATING 3D RECONSTRUCTION OF NON-COLLABORATIVE SURFACES THROUGH PHOTOGRAMMETRY AND PHOTOMETRIC STEREO [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
3D digital reconstruction techniques are extensively used for quality control purposes. Among them, photogrammetry and photometric stereo methods have been for a long time used with success in several application fields.
A. Karami   +3 more
doaj   +1 more source

Example-Based Multispectral Photometric Stereo for Multi-Colored Surfaces

open access: yesJournal of Imaging, 2022
A photometric stereo needs three images taken under three different light directions lit one by one, while a color photometric stereo needs only one image taken under three different lights lit at the same time with different light directions and ...
Daisuke Miyazaki, Kazuya Uegomori
doaj   +1 more source

Optical Properties of Light-Scattering Standards for CCD Photometry

open access: yesSensors, 2023
This paper analyzes the light-scattering standards currently used for calibration (verification) and systematic research in photo and spectrophotometry tools.
Denys Bondariev   +4 more
doaj   +1 more source

A Photogrammetric-Photometric Stereo Method for High-Resolution Lunar Topographic Mapping Using Yutu-2 Rover Images

open access: yesRemote Sensing, 2021
Topographic products are important for mission operations and scientific research in lunar exploration. In a lunar rover mission, high-resolution digital elevation models are typically generated at waypoints by photogrammetry methods based on rover ...
Man Peng   +6 more
doaj   +1 more source

Image matching principles in photometrical transformations [PDF]

open access: yes2017 Internet Technologies and Applications (ITA), 2017
In this article interactive visualization techniques for creating virtual objects are considered. We describe the most common methods of photometric transformations between images and a variety of geometric objects contextualized against the backdrop of increased adoption of 360 videos and virtual reality systems.
Suprun, Diana, Cunningham, Stuart
openaire   +2 more sources

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