Results 21 to 30 of about 13,553 (263)

A Hitchhiker’s Guide to Structural Similarity

open access: yesIEEE Access, 2021
The Structural Similarity (SSIM) Index is a very widely used image/video quality model that continues to play an important role in the perceptual evaluation of compression algorithms, encoding recipes and numerous other image/video processing algorithms.
Abhinau K. Venkataramanan   +4 more
doaj   +1 more source

Rate Bounds on SSIM Index of Quantized Images [PDF]

open access: yesIEEE Transactions on Image Processing, 2008
In this paper, we derive bounds on the structural similarity (SSIM) index as a function of quantization rate for fixed-rate uniform quantization of image discrete cosine transform (DCT) coefficients under the high-rate assumption. The space domain SSIM index is first expressed in terms of the DCT coefficients of the space domain vectors.
Sumohana S. Channappayya   +2 more
openaire   +2 more sources

Simulation of Scour at Bridge Supports

open access: yesGrađevinar, 2020
Groups of piers are used on bridges to minimise scour around bridge supports. The prediction of scour around piers due to interaction of vortices around bridge piers is more complex compared to scour prediction around a single pier.
Yasser Moussa, Mahoud Atta
doaj   +1 more source

Cloud-Based CAD Parametrization for Design Space Exploration and Design Optimization in Numerical Simulations

open access: yesFluids, 2020
In this manuscript, an automated framework dedicated to design space exploration and design optimization studies is presented. The framework integrates a set of numerical simulation, computer-aided design, numerical optimization, and data analytics tools
Joel Guerrero   +2 more
doaj   +1 more source

Application of convolutional neural networks trained on optical images for object detection in radar images

open access: yesКомпьютерная оптика
Due to the small number of annotated radar image datasets, the use of optical images for training neural networks designed to detect objects in radar images seems promising.
V.A. Pavlov   +3 more
doaj   +1 more source

Deployment and Measurement of Quality of Service Parameters for Triple Play Services in Optical Access Networks

open access: yesCommunications, 2017
Broadband telecommunication networks are the future of communication and distribution of multimedia services. Thanks to the high transmission potential and capacity of optical fibres, the optical networks are predestined to be more widely used in ...
Jan Latal   +4 more
doaj   +1 more source

Application of a Radar Echo Extrapolation‐Based Deep Learning Method in Strong Convection Nowcasting

open access: yesEarth and Space Science, 2021
Strong convection nowcasting has been gaining importance in operational weather forecasting. Recently, deep learning methods have been used to meet the increasing requirement for precise and timely nowcasting. One of the promising deep learning models is
Jian Yin, Zhiqiu Gao, Wei Han
doaj   +1 more source

Optimizing Multiscale SSIM for Compression via MLDS [PDF]

open access: yesIEEE Transactions on Image Processing, 2012
A crucial step in the assessment of an image compression method is the evaluation of the perceived quality of the compressed images. Typically, researchers ask observers to rate perceived image quality directly and use these rating measures, averaged across observers and images, to assess how image quality degrades with increasing compression.
Christophe Charrier   +4 more
openaire   +4 more sources

Secure And Robust Qr Code Embedded In Medical Image Using Ssim And Ms-ssim

open access: yes, 2023
Two main technique used for information secure transmission in internet are cryptography and stenography. Now days the Quick Response (QR) codes have been widely used in important applications such as data storage and high-speed machine reading in information security.
Mr. N. Senthilnathan, Dr. A. Adaikalam
openaire   +1 more source

A Combination of SHA-256 and DES for Visual Data Protection

open access: yesJurnal Masyarakat Informatika
This study employs SHA-256 and DES algorithms to safeguard visual data through encryption and decryption processes. Research findings demonstrate that this method provides robust security with image histograms that are difficult to recognize and randomly
Aristides Bima Wintaka   +3 more
doaj   +1 more source

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