Results 61 to 70 of about 6,399,268 (313)

A Underwater Sequence Image Dataset for Sharpness and Color Analysis

open access: yesSensors, 2022
The complex underwater environment usually leads to the problem of quality degradation in underwater images, and the distortion of sharpness and color are the main factors to the quality of underwater images.
Miao Yang   +5 more
doaj   +1 more source

Phytoplankton Hotspot Prediction With an Unsupervised Spatial Community Model

open access: yes, 2017
Many interesting natural phenomena are sparsely distributed and discrete. Locating the hotspots of such sparsely distributed phenomena is often difficult because their density gradient is likely to be very noisy.
Dudek, Gregory   +3 more
core   +1 more source

An Airborne Sonar System for Underwater Remote Sensing and Imaging

open access: yesIEEE Access, 2020
High-resolution imaging and mapping of the ocean and its floor has been limited to less than 5% of the global waters due to technological barriers. Whereas sonar is the primary contributor to existing underwater imagery, the water-based system is limited
Aidan Fitzpatrick   +2 more
semanticscholar   +1 more source

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

Efficient Guided Wave Modelling for Tomographic Corrosion Mapping via One-Way Wavefield Extrapolation

open access: yesSensors
Mapping corrosion depths along pipeline sections using guided-wave-based tomographic methods is a challenging task. Accurate defect sizing depends heavily on the precision of the forward model in guided wave tomography.
Emiel Hassefras   +2 more
doaj   +1 more source

Improvement of Image Alignment Using Camera Attitude Information [PDF]

open access: yes, 2001
We discuss a proposed technique for incorporation of information from a variety of sensors in a video imagery processing pipeline. The auxiliary information allows one to simplify computations, effectively reducing the number of independent parameters in
Cutter, Randy G, Jr.   +2 more
core   +2 more sources

MOSAIC: An integrated ultrasonic 2-D array system [PDF]

open access: yes, 2007
An investigation into the development of an ultrasound imaging system capable of customization for multiple applications via the tessellation of in-system programmable scalable modules, or tiles, is presented here.
Cochran, S.   +4 more
core   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

open access: yesAdvanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat   +6 more
wiley   +1 more source

Omnidirectional underwater surveying and telepresence [PDF]

open access: yes, 2016
Exploratory dives are traditionally the first step for marine scientists to acquire information on a previously unknown area of scientific interest. Manned submersibles have been the platform of choice for such exploration, as they allow a high level ...
Bosch Alay, Josep   +8 more
core  

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

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