Results 81 to 90 of about 46,099 (288)

Sparse underwater acoustic imaging: a case study [PDF]

, 2012
International audienceUnderwater acoustic imaging is traditionally performed with beam- forming: beams are formed at emission to insonify limited angular regions; beams are (synthetically) formed at reception to form the image.
Bertin, Nancy, Cervenka, Pierre, Emiya, Valentin, Gribonval, Rémi, Marchal, Jacques, Stefanakis, Nikolaos   +5 more
core   +2 more sources

Tissue Engineered Human Elastic Cartilage From Primary Auricular Chondrocytes for Ear Reconstruction

Advanced Functional Materials, EarlyView.
Despite over three decades of research, no tissue‐engineered solution for auricular reconstruction in microtia patients has reached clinical translation. The key challenge lies in generating functional elastic cartilage ex vivo. Here, we integrate synergistic cell‐biomaterial strategies to engineer auricular grafts with mechanical and histological ...
Philipp Fisch, Sandra Kessler, Simone Ponta, Anna Puiggalí‐Jou, Guoliang Lyu, Killian Flégeau, Anastasiya Martyts, Florian Roth, David Fercher, Filippo M. Rijli, Daniel Simmen, Eva Novoa Olivares, Thomas Linder, Marcy Zenobi‐Wong   +13 more
wiley   +1 more source

Underwater Optical Image Processing [PDF]

Modern Approaches in Oceanography and Petrochemical Sciences, 2018
Image processing can be defined as performing any process on the visual data or vision signals such as a stored digital image, a photo from a scene or a video frame.
openaire   +1 more source

Shaping of Biohybrid Functional Living Materials

Advanced Functional Materials, EarlyView.
This work demonstrates a strategy for shaping living mycelium into functional materials by directing its natural growth. Nanoparticles armor hyphae, micron‐scale particles entangle within the network, and printed hydrogel architectures steer expansion, creating defined geometries.
Sarah Schyck, Mark Ablonczy, Sourav Patranabish, Kunal Masania   +3 more
wiley   +1 more source

Csuid - Comprehensive Synthetic Underwater Image Dataset

Data in Brief
The underwater environment is characterized by complex light traversal, encompassing effects such as color loss, contrast loss, water distortion, backscatter, light attenuation, and color cast, which vary depending on water purity, depth, and other factors.
Kuruma Purnima, C. Siva Kumar
openaire   +3 more sources

Polymer Infiltration Into SURMOF Channels Enables Hydrophobic and Solid‐Like Slippery Functional Thin Films

Advanced Functional Materials, EarlyView.
We report a polymer‐chain insertion strategy to fabricate pore‐threaded MOF thin films with precisely tuned surface chemistry and wettability. Grafting n‐alkane chains into the pillared layer Cu2(bdc)2(dabco) MOF thin film's vertical nanochannels enhances water stability, and induces hydrophobicity and lubricant‐free, solid‐like slippery behavior ...
Angana Borbora, Modan Liu, Hartmut Gliemann, Uttam Manna, Christof Wöll   +4 more
wiley   +1 more source

Deep Underwater Image Enhancement

, 2018
In an underwater scene, wavelength-dependent light absorption and scattering degrade the visibility of images, causing low contrast and distorted color casts. To address this problem, we propose a convolutional neural network based image enhancement model, i.e., UWCNN, which is trained efficiently using a synthetic underwater image database. Unlike the
Anwar, Saeed, Li, Chongyi, Porikli, Fatih   +2 more
openaire   +2 more sources

Triblock Polymer Engineering Enables Hydration‐Rich, High‐Performance, Fouling‐Resistant Interfaces

Advanced Functional Materials, EarlyView.
A molecularly engineered triblock polymer (PHZ) rapidly reorganizes into a hydration‐rich interfacial layer on diverse surfaces, strongly suppressing hydrophobic attraction and fouling. The triblock polymer provides robust energy and steric barriers to oily foulants, enabling high‐performance antifouling at ultralow dosage.
Chenyu Qiao, Ziqian Zhao, Yueying Huang, Yongxiang Sun, Genglin Li, Xuguang Song, Hongbo Zeng   +6 more
wiley   +1 more source

Enhanced U-Net for Underwater Laser Range-Gated Image Restoration: Boosting Underwater Target Recognition

Journal of Marine Science and Engineering
Underwater optical imaging plays a crucial role in maritime safety, enabling reliable navigation, efficient search and rescue operations, precise target recognition, and robust military reconnaissance.
Peng Liu, Shuaibao Chen, Wei He, Jue Wang, Liangpei Chen, Yuguang Tan, Dong Luo, Wei Chen, Guohua Jiao   +8 more
doaj   +1 more source

Mapping and Characterizing Subtidal Oyster Reefs Using Acoustic Techniques, Underwater Videography and Quadrat Counts [PDF]

, 2003
Populations of the eastern oyster Crassostrea virginica have been in long-term decline in most areas. A major hindrance to effective oyster management has been lack of a methodology for accurately and economically obtaining data on their distribution and
Adams, J R, Dijkstra, Semme J., Grizzle, Raymond E, Smith, Brian, Ward, R W   +4 more
core   +1 more source