Results 41 to 50 of about 91,374 (289)

Denoising Multiscale Back-Projection Feature Fusion for Underwater Image Enhancement

open access: yesApplied Sciences
In recent decades, enhancing underwater images has become a crucial challenge when obtaining high-quality visual information in underwater environment detection, attracting increasing attention.
Wen Qu, Yuming Song, Jiahui Chen
doaj   +1 more source

Underwater image matching by incorporating structural constraints

open access: yesInternational Journal of Advanced Robotic Systems, 2017
Underwater robot plays an important role in underwater perception and manipulation tasks. Vision information processing is essential for the intelligent perception of an underwater robot, in which image matching is a fundamental topic.
Xu Yang   +6 more
doaj   +1 more source

A Two-Stage Network Based on Transformer and Physical Model for Single Underwater Image Enhancement

open access: yesJournal of Marine Science and Engineering, 2023
The absorption and scattering properties of water can cause various distortions in underwater images, which limit the ability to investigate underwater resources.
Yuhao Zhang   +4 more
doaj   +1 more source

Pose Detection and control of multiple unmanned underwater vehicles using optical feedback [PDF]

open access: yes, 2014
This paper proposes pose detection and control algorithms in order to control the relative pose between two Unmanned Underwater Vehicles (UUVs) using optical feedback.
Barbaros Celikkol   +5 more
core   +3 more sources

An underwater imaging method of enhancement via multi-scale weighted fusion

open access: yesFrontiers in Marine Science, 2023
Blurring and color distortion are significant issues in underwater optical imaging, caused by light absorption and scattering impacts in the water medium. This hinders our ability to accurately perceive underwater imagery.
Hao Zhang   +4 more
doaj   +1 more source

The Effects of Air and Underwater Blast on Composite Sandwich Panels and Tubular Laminate Structures

open access: yes, 2012
The resistance of glass-fibre reinforced polymer (GFRP) sandwich panels and laminate tubes to blast in air and underwater environments has been studied.
A Neuberger   +13 more
core   +1 more source

Efficient Approach for OS-CFAR 2D Technique Using Distributive Histograms and Breakdown Point Optimal Concept applied to Acoustic Images [PDF]

open access: yes, 2019
In this work, a new approach to improve the algorithmic efficiency of the Order Statistic-Constant False Alarm Rate (OS-CFAR) applied in two dimensions (2D) is presented.
Acosta, Gerardo Gabriel   +3 more
core   +2 more sources

Tumor‐stromal crosstalk and macrophage enrichment are associated with chemotherapy response in bladder cancer

open access: yesFEBS Open Bio, EarlyView.
Chemoresistance in bladder cancer: Macrophage recruitment associated with CXCL1, CXCL5 and CXCL8 expression is characteristic of Gemcitabine/Cisplatin (Gem/Cis) Non‐Responder tumors (right side) while Responder tumors did not show substantial tumor‐stromal crosstalk (left side). All biological icons are attributed to Bioicons: carcinoma, cancerous‐cell‐
Sophie Leypold   +11 more
wiley   +1 more source

Lighting enhancement of underwater image using coronavirus herd immunity optimizer

open access: yesAlexandria Engineering Journal
Recently, the technology of Underwater computer vision has played a vital role by improving the quality of underwater images owing to its significance in different applications in marines, such as military, resource development, biological research, and ...
Zaid Abdi Alkareem Alyasseri   +7 more
doaj   +1 more source

Underwater Image Enhancement Using Hyper-Laplacian Reflectance Priors and CNN-Based Classification

open access: yesEngineering Proceedings, 2023
The physical properties of water cause an underwater image to degrade. Enhancing damaged underwater photos is an important topic of study. Several academics have used various picture-enhancing methods and models.
Talha Minhas   +2 more
doaj   +1 more source

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