Results 21 to 30 of about 13,678 (263)

Model-Based Underwater Image Simulation and Learning-Based Underwater Image Enhancement Method

open access: yesInformation, 2022
Due to the absorption and scattering effects of light in water bodies and the non-uniformity and insufficiency of artificial illumination, underwater images often present various degradation problems, impacting their utility in underwater applications ...
Yidan Liu   +7 more
doaj   +1 more source

An End-to-End Underwater-Image-Enhancement Framework Based on Fractional Integral Retinex and Unsupervised Autoencoder

open access: yesFractal and Fractional, 2023
As an essential low-level computer vision task for remotely operated underwater robots and unmanned underwater vehicles to detect and understand the underwater environment, underwater image enhancement is facing challenges of light scattering, absorption,
Yang Yu, Chenfeng Qin
doaj   +1 more source

Reconstruction of Underwater Image by Bispectrum [PDF]

open access: yes2007 IEEE International Conference on Image Processing, 2007
Reconstruction of an underwater object from a sequence of images distorted by moving water waves is a challenging task. A new approach is presented in this paper. We make use of the bispectrum technique to analyze the raw image sequences and recover the phase information of the true object.
Zhiying Wen   +3 more
openaire   +2 more sources

Real-time GAN-based image enhancement for robust underwater monocular SLAM

open access: yesFrontiers in Marine Science, 2023
Underwater monocular visual simultaneous localization and mapping (SLAM) plays a vital role in underwater computer vision and robotic perception fields.
Ziqiang Zheng   +4 more
doaj   +1 more source

Fine reconstruction of underwater images for environmental feature fusion

open access: yesInternational Journal of Advanced Robotic Systems, 2021
Complicated underwater environments, such as occlusion by foreign objects and dim light, causes serious loss of underwater targets feature. Furthermore, underwater ripples cause target deformation, which greatly increases the difficulty of feature ...
Tao Xu   +4 more
doaj   +1 more source

Overview of Underwater 3D Reconstruction Technology Based on Optical Images

open access: yesJournal of Marine Science and Engineering, 2023
At present, 3D reconstruction technology is being gradually applied to underwater scenes and has become a hot research direction that is vital to human ocean exploration and development.
Kai Hu   +6 more
doaj   +1 more source

Enhancement of Underwater Images [PDF]

open access: yesInternational Journal of Engineering Research and, 2020
Underwater photography becomes an important research area in Ocean Engineering, Computer Graphics and Surveillance. But underwater images appear blue-green and hazy since the longer wavelength of sunlight cannot penetrate deep in the water due to salinity and high concentration of dissolve impurities in the seawater.
Vivek Sharma, Rakesh Verma
openaire   +3 more sources

Underwater Image Enhancement Based on Adaptive Color Correction and Improved Retinex Algorithm

open access: yesIEEE Access, 2023
In order to solve the problems about color distortion and low contrast of underwater images, we propose an underwater image enhancement algorithm that combines adaptive color correction with improved Retinex algorithm.
Shijie Lin   +4 more
doaj   +1 more source

Multiscale Fusion for Underwater Image Enhancement

open access: yesInternational Journal of Emerging Research in Engineering, Science, and Management, 2022
In this paper, an enhancement scheme on underwater images is proposed. Underwater images undergo efforts like scattering and attenuation. Many techniques are proposed for underwater image and enhancement that largely depends on the features and ...
Kunisetty Sivanihimaja, E Sasikala Reddy
doaj   +1 more source

An Underwater Image Quality Assessment Metric

open access: yesIEEE Transactions on Multimedia, 2023
Various image enhancement algorithms are adopted to improve underwater images that often suffer from visual distortions. It is critical to assess the output quality of underwater images undergoing enhancement algorithms, and use the results to optimise underwater imaging systems.
Pengfei Guo   +5 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy