Results 51 to 60 of about 1,349,860 (222)

Reducing metal artifacts by restricting negative pixels

Visual Computing for Industry, Biomedicine, and Art, 2021
When the object contains metals, its x-ray computed tomography (CT) images are normally affected by streaking artifacts. These artifacts are mainly caused by the x-ray beam hardening effects, which deviate the measurements from their true values.
Gengsheng L. Zeng, Megan Zeng
doaj   +1 more source

COMBINED PATCH-WISE MINIMAL-MAXIMAL PIXELS REGULARIZATION FOR DEBLURRING [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Deblurring is a vital image pre-processing procedure to improve the quality of images. It is a classical ill-posed problem. A new blind deblurring method based on image sparsity prior is proposed here.
J. Han, S. L. Zhang, Z. Ye
doaj   +1 more source

Missed by Filter Lists: Detecting Unknown Third-Party Trackers with Invisible Pixels [PDF]

Proceedings on Privacy Enhancing Technologies, 2018
Web tracking has been extensively studied over the last decade. To detect tracking, previous studies and user tools rely on filter lists. However, it has been shown that filter lists miss trackers.
Imane Fouad, Nataliia Bielova, A. Legout, Natasa Sarafijanovic-Djukic   +3 more
semanticscholar   +1 more source

The application of photogrammetric numerical methods to the analysis of eye lens digital images

Geodesy and Cartography, 2012
Research on the identification possibilities and accuracy of eye lens digital images applying the theory of photogrammetric numerical methods and of covariations functions is presented.
Jonas Skeivalas, Evelina Zigmantienė, Eglė Tumelienė, Rosita Birvydienė   +3 more
doaj   +1 more source

The application of photogrammetric numerical methods to the analysis of magnetic resonance images

Geodesy and Cartography, 2012
Research on the identification possibilities and accuracy of digital images applying the theory of covariations functions is presented. The digital magnetic resonance images are processed by Matlab 7 computer program. The digital magnetic resonance image
Jonas Skeivalas, Romualdas Kizlaitis
doaj   +1 more source

Reversible electrical switching of nanostructural color pixels

Nanophotonics, 2023
Electrical switching of nanophotonic structural color elements is a promising approach towards addressable color switching pixels for next generation reflective displays.
Zhang Shutao, Zhang Jun, Goh Wei Peng, Liu Yan, Tjiptoharsono Febiana, Lee Henry Yit Loong, Jiang Changyun, Ding Jun, Yang Joel K. W., Dong Zhaogang   +9 more
doaj   +1 more source

Adding Lines Along Pixels: Remote Sensing, Traditional Knowledge and Human–Fire Interactions in Ethiopia and India

Geo: Geography and Environment
This study critically examines the limitations of satellite remote sensing (SRS) in capturing the complexities of human–fire interactions. It proposes a relational approach grounded in the embodied, place‐based knowledge of communities living with fire ...
Kapil Yadav, Henry Thompson
doaj   +1 more source

Image Hazing Algorithm Based on Generative Adversarial Networks

IEEE Access, 2020
Haze is an important factor in photography with a special aesthetic, emotional, or composi- tional meaning, an image hazing method is proposed based on generative adversarial network.
Jinsheng Xiao, Jinglong Zhou, Junfeng Lei, Chuan Xu, Haigang Sui   +4 more
doaj   +1 more source

Classifying Wheat Hyperspectral Pixels of Healthy Heads and Fusarium Head Blight Disease Using a Deep Neural Network in the Wild Field

Remote Sensing, 2018
Classification of healthy and diseased wheat heads in a rapid and non-destructive manner for the early diagnosis of Fusarium head blight disease research is difficult.
Xiu Jin, Lu Jie, Shuai Wang, Haijun Qi, Shaowen Li   +4 more
semanticscholar   +1 more source

ANALYSIS OF MULTIPATH PIXELS IN SAR IMAGES [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
As the received radar signal is the sum of signal contributions overlaid in one single pixel regardless of the travel path, the multipath effect should be seriously tackled as the multiple bounce returns are added to direct scatter echoes which leads to ...
J. W. Zhao, J. W. Zhao, J. C. Wu, X. L. Ding, L. Zhang, F. M. Hu   +5 more
doaj   +1 more source