Results 11 to 20 of about 77,267 (242)

Chromatic Aberration in Wavefront Coding Imaging with Trefoil Phase Mask

open access: yesPhotonics
The refractive index of the lenses used in optical designs varies with wavelength, causing light rays to fail when focusing on a single plane. This phenomenon is known as chromatic aberration (CA), chromatic distortion, or color fringing, among other ...
Miguel Olvera-Angeles   +2 more
doaj   +2 more sources

Chromatic-Aberration-Corrected Hyperspectral Single-Pixel Imaging

open access: yesPhotonics, 2022
With the emerging development of hyperspectral single-pixel imaging (SPI) systems, the trade-off between the simplicity of optical structure and the correction of chromatic aberration is now an essential factor to be considered.
Ying Liu   +5 more
doaj   +2 more sources

Chromatic Aberration [PDF]

open access: yes, 2014
Chromatic Aberration is a film installation which explores the early technologies of colour filmmaking drawn from the archives of George Eastman House, Rochester, New York. Featuring vibrant close-ups of eyes from fledgling archival experiments in colour
Satz, Aura
core   +6 more sources

Image processing algorithms for in-field cotton boll detection in natural lighting conditions

open access: yesArtificial Intelligence in Agriculture, 2021
In developing countries, the cotton harvesting operation is currently being performed manually. Due to the monotonous nature of this task and the involvement of a considerable amount of labor, this operation becomes very tedious and costly.
Naseeb Singh   +4 more
doaj   +1 more source

ASSESSMENT OF CHROMATIC ABERRATIONS FOR GOPRO 3 CAMERAS IN UNDERWATER ENVIRONMENTS [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
With underwater photogrammetric mapping becoming more prominent due to the lower costs for waterproof cameras as well as lower costs for underwater platforms, the aim of this research is to investigate chromatic aberration in underwater environments ...
P. Helmholz, D. D. Lichti
doaj   +1 more source

INVESTIGATION INTO THE BEHAVIOUR AND MODELLING OF CHROMATIC ABERRATIONS IN NON-METRIC DIGITAL CAMERAS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Chromatic aberration in colour digital camera imagery can affect the accuracy of photogrammetric reconstruction. Both longitudinal and transverse chromatic aberrations can be effectively modelled by making separate measurements in each of the blue, green
D. D. Lichti   +4 more
doaj   +1 more source

Lateral chromatic aberration correction method and lens design feedback for dynamic optical tilt

open access: yesResults in Optics, 2021
A method of generating lateral chromatic aberration correction factor (CACF) during lens development is presented. This CACF will be able to feedback to lens designer whether the design will work when tilt Optical Image Stabilization (OIS) compensation ...
Kee Siang Goh   +2 more
doaj   +1 more source

Effect of Outer Polepiece Shroud Geometry on Bipolar Lens and Studying its Properties

open access: yesTikrit Journal of Pure Science, 2022
In this paper, several innovative designs of axially symmetrical magnetic dipole lenses, which are bipolar lenses with different geometries, were designed, where the outer pole arm indicated by the symbol was changed (hp) with current density (σ = 6 A ...
Hafsa Y. Ismaeel   +2 more
doaj   +1 more source

Achromatic and Resolution Enhancement Light Field Deep Neural Network for ZnO Nematic Liquid Crystal Microlens Array

open access: yesAdvanced Photonics Research, 2023
Nematic liquid‐crystal microlens arrays (LC‐MLAs) often exhibit chromatic aberration and low resolution, severely compromising their optical imaging quality.
Hui Li, Tian Li, Si Chen, Yuntao Wu
doaj   +1 more source

Investigations on the potential application of machine vision lenses for depth measurement by exploiting chromatic aberrations

open access: yesMeasurement: Sensors, 2022
Chromatic (spectral) aberrations are image imperfections that are disadvantageous for standard image processing tasks and are typically compensated through the application of different types of glass during lens design.
Robin Horn   +6 more
doaj   +1 more source

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