Results 251 to 260 of about 838,139 (291)

Features of Matrix Masking of Digital Radar Images

2022 Wave Electronics and its Application in Information and Telecommunication Systems (WECONF), 2022
I. V. Tokarevskiy, A. A. Sentsov, M. B. Sergeev   +2 more
openaire   +1 more source

A matrix algorithm for SAR quick look imaging on digital signal processing

IGARSS 2000. IEEE 2000 International Geoscience and Remote Sensing Symposium. Taking the Pulse of the Planet: The Role of Remote Sensing in Managing the Environment. Proceedings (Cat. No.00CH37120), 2002
Synthetic aperture radar(SAR) imaging processing is a complex operation that requires large amounts of floating point computations. It is very time-consuming to convert SAR raw data into an image on microcomputers. This paper presents a digital imaging matrix algorithm.
null Ma Debao, null Li Wugao, null Le Zhongxin, null Wang Jiefeng   +3 more
openaire   +1 more source

Secure Copyright Protection of Digital Images Using Nonnegative Matrix Factorization

23rd Biennial Symposium on Communications, 2006, 2006
We propose a robust method for digital watermarking and secure copyright protection of digital images using nonnegative matrix factorization and singular value decomposition techniques. The proposed scheme improves the performance of the data embedding system effectively, and it is resistant to a variety of intentional attacks and normal visual ...
M. Ghaderpanah, A.B. Hamza
openaire   +1 more source

Restoration theory for digital images under additive noises by a constrained generalized inverse matrix

ICASSP '86. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005
The image restoration by using Moore-Penrose's generalized inverse (MPGI) is quite simple to implement, but it has vital defects: (a) it must compute the eigenvalues and eigenvectors of a large scale matrix, (b) restored images by this method are badly affected by the additive noise.
Shozo Kondo, Kiyoaki Atsuta
openaire   +1 more source

Digital image noise removal based on collaborative filtering approach and singular value decomposition

Multimedia tools and applications, 2022
A. Khmag
semanticscholar   +1 more source

Multiple Digital Image Encryption Algorithm Based on Chaos Algorithm

Journal on spesial topics in mobile networks and applications, 2022
Y. Zhang, Yi He, Jing Zhang, Xiaobo Liu
semanticscholar   +1 more source

Damage mode identification of open hole composite laminates based on acoustic emission and digital image correlation methods

, 2021
E. Özaslan, A. Yetgi̇n, B. Acar, M. Güler   +3 more
semanticscholar   +1 more source

[Examination of the image quality from digital fluoroscopy equipment with 1k- and 2k-image matrix].

RoFo : Fortschritte auf dem Gebiete der Rontgenstrahlen und der Nuklearmedizin, 2000
The image quality of 1k- and 2k-radiographs from digital fluoroscopy equipments (Sireskop SX and Polystar SX--Siemens) are characterized by comparison with each other to evaluate the relevance of this technique in clinical routine.We examined fabricated and evaluated images with 1k- and 2k-image matrix from several high and low contrast phantoms and ...
G, Kunz, H P, Busch
openaire   +1 more source

Nanoscale digital image correlation at elementary fibre/matrix level in polymer–based composites

Composites Part A: Applied Science and Manufacturing, 2023
Michael Coulombier, Thomas Pardoen, Bernard Nysten   +2 more
exaly  

Damage and failure analysis of a SiC/SiC ceramic matrix composite using digital image correlation and acoustic emission

Ceramics International, 2022
Jiang Yun, Xiaoan Hu, Longbiao Li
exaly