Results 41 to 50 of about 20,966 (189)

Dense Scattering Layer Removal

, 2013
We propose a new model, together with advanced optimization, to separate a thick scattering media layer from a single natural image. It is able to handle challenging underwater scenes and images taken in fog and sandstorm, both of which are with ...
Jia, Jiaya, Xu, Li, Yan, Qiong
core   +1 more source

UNDERWATER IMAGE RESTORATION ANDENHANCEMENT USING HYBRID ALGORITHM

international journal of engineering technology and management sciences, 2022
Underwater image restoration and enhancement using a Hybrid algorithm to evaluate the undersea activities like underwater vehicles to carry optical imaging systems for recording. The captured images and videos frequently suffered from two displeasing problems: 1. Color distortion; 2. Poor visibility.
null Sarojini J, null Mano Andrew M, null Vanisri R, null Aravindkumaran S   +3 more
openaire   +1 more source

Deep Supervised Residual Dense Network for Underwater Image Enhancement

Sensors, 2021
Underwater images are important carriers and forms of underwater information, playing a vital role in exploring and utilizing marine resources. However, underwater images have characteristics of low contrast and blurred details because of the absorption ...
Yanling Han, Lihua Huang, Zhonghua Hong, Shouqi Cao, Yun Zhang, Jing Wang   +5 more
doaj   +1 more source

Oyster Bed Mapping in the Great Bay Estuary, 2012-2013 [PDF]

, 2013
Six major oyster beds (reefs) in New Hampshire are mapped periodically to assess wild oyster populations in the Great Bay Estuary. Data on the spatial extent of the beds are combined with density and other measures to estimate the abundances of live ...
Grizzle, Raymond E., Ward, Krystin M.
core   +2 more sources

Underwater Image Restoration Based on Image Blurriness and Light Absorption [PDF]

IEEE Transactions on Image Processing, 2017
Underwater images often suffer from color distortion and low contrast, because light is scattered and absorbed when traveling through water. Such images with different color tones can be shot in various lighting conditions, making restoration and enhancement difficult. We propose a depth estimation method for underwater scenes based on image blurriness
Yan-Tsung Peng, Pamela C. Cosman
openaire   +4 more sources

Underwater Image Restoration via DCP and Yin–Yang Pair Optimization

Journal of Marine Science and Engineering, 2022
Underwater image restoration is a challenging problem because light is attenuated by absorption and scattering in water, which can degrade the underwater image.
Kun Yu, Yufeng Cheng, Longfei Li, Kaihua Zhang, Yanlei Liu, Yufang Liu   +5 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

The African hind's (Cephalopholis taeniops, serranidae) use of artificial reefs off Sal Island (Cape Verde): a preliminary study based on acoustic telemetry [PDF]

, 2011
The African hind Cephalopholis taeniops (Valenciennes, 1828) is one of the most important commercial demersal species caught in the Cape Verde archipelago. The species is closely associated with hard substrate and is one of the main attractions for SCUBA
ABDALLAH A. B, HEEMSTRA P. C., Karim Erzini, KARLSEN J., LINO P. G., Luís Bentes, MEDINA A., Miguel Neves Santos, Miguel Tiago Oliveira, MONTEIRO P., PASTOR O. T., Pedro G. Lino, POPPLE I. D., REINE K., SIAU Y., STANLEY D. R, STOBBERUP K., VOEGELI F. A., ZELLER D. C.   +18 more
core   +4 more sources

Underwater Image Restoration via Non-Convex Non-Smooth Variation and Thermal Exchange Optimization

Journal of Marine Science and Engineering, 2021
The quality of underwater images is an important problem for resource detection. However, the light scattering and plankton in water can impact the quality of underwater images. In this paper, a novel underwater image restoration based on non-convex, non-
Qingliang Jiao, Ming Liu, Pengyu Li, Liquan Dong, Mei Hui, Lingqin Kong, Yuejin Zhao   +6 more
doaj   +1 more source

Phenomenological marine snow model for optical underwater image simulation: Applications to color restoration

, 2012
International audienceOptical imaging plays an important role in oceanic science and engineering. However, the design of optical systems and image processing techniques for subsea environment are challenging tasks due to water turbidity.
Boffety, Matthieu, Galland, Frédéric
core   +3 more sources