Results 21 to 30 of about 77,261 (244)

Saliency Consistency-Based Image Re-Colorization for Color Blindness

open access: yesIEEE Access, 2020
For patients with color vision defects, owing to the destruction of cone cells and loss of function, some color information is lost, hence changing the originally transmitted information by the image.
Jinjiang Li, Xiaomei Feng, Hui Fan
doaj   +1 more source

A novel approach of ceramic tile crack detection using morphological operations

open access: yesMehran University Research Journal of Engineering and Technology, 2022
In ceramic tiles manufacturing industry, tiles are manufactured at large scale which makes it more challenging to ensure the quality of each tile according to the set standards.
Mahzaib Younas   +4 more
doaj   +1 more source

Channelized hotelling observers for signal detection in stack-mode reading of volumetric images on medical displays with slow response time [PDF]

open access: yes, 2011
Volumetric medical images are commonly read in stack-browsing mode. However, previous studies suggest that slow temporal response of medical liquid crystal displays may degrade the diagnostic accuracy (lesion detectability) at browsing rates as low as 10
Badano, Aldo   +5 more
core   +2 more sources

Extranuclear X-ray Emission in the Edge-on Seyfert Galaxy NGC 2992 [PDF]

open access: yes, 2005
We found several extranuclear (r >~ 3") X-ray nebulae within 40" (6.3 kpc at 32.5 Mpc) of the nucleus of the Seyfert galaxy NGC 2992. The net X-ray luminosity from the extranuclear sources is ~2-3 E39 erg/s (0.3-8.0 keV). The X-ray core itself (r
Antonucci R.   +9 more
core   +1 more source

Infrared Image Enhancement Using Adaptive Histogram Partition and Brightness Correction

open access: yesRemote Sensing, 2018
Infrared image enhancement is a crucial pre-processing technique in intelligent urban surveillance systems for Smart City applications. Existing grayscale mapping-based algorithms always suffer from over-enhancement of the background, noise amplification,
Minjie Wan   +5 more
doaj   +1 more source

Contaminated Facade Identification Using Convolutional Neural Network and Image Processing

open access: yesIEEE Access, 2020
In recent years, as number of new building getting larger, there has been an increased interest in the cleaning of exterior walls. Accordingly, there is a growing interest in automatic cleaning robots that move around the outer building façade ...
Jiseok Lee   +5 more
doaj   +1 more source

Automated Camera Exposure Control for Accuracy-Enhanced Stereo-Digital Image Correlation Measurement

open access: yesSensors, 2022
An automated camera exposure control method, which allows a two-camera stereo-digital image correlation (stereo-DIC) system to capture high-quality speckle image pairs, is presented for accuracy-enhanced stereo-DIC measurement.
Xiaoying Zhang   +3 more
doaj   +1 more source

Deep speckle correlation: a deep learning approach toward scalable imaging through scattering media [PDF]

open access: yes, 2018
Imaging through scattering is an important yet challenging problem. Tremendous progress has been made by exploiting the deterministic input–output “transmission matrix” for a fixed medium.
Li, Yunzhe, Tian, Lei, Xue, Yujia
core   +2 more sources

A Multilevel Optical Anticounterfeiting System Based on Color Space‐Correlated Raman Spectroscopy of Diamond

open access: yesAdvanced Photonics Research, 2023
Optical anticounterfeiting certifies the authenticity of goods using optical information coding units. A Raman tag with Raman peaks serving as copious optical information coding units is optimal for optical anticounterfeiting.
Yau Chuen Yiu, Zhiqin Chu
doaj   +1 more source

IRAS 16293-2422: Evidence for Infall onto a Counter-Rotating Protostellar Accretion Disk [PDF]

open access: yes, 2005
We report high spatial resolution VLA observations of the low-mass star-forming region IRAS 16293-2422 using four molecular probes: ethyl cyanide (CH$_3$CH$_2$CN), methyl formate (CH$_3$OCHO), formic acid (HCOOH), and the ground vibrational state of ...
Hollis, J. M., Remijan, Anthony J.
core   +3 more sources

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