Results 71 to 80 of about 26,581 (185)

Holographic mensuration of suspended particles in aquatic systems [PDF]

, 1995
The distribution and dynamics of aggregates in the aquatic environment play an important role in the modelling of biogeochemical processes. Previous work on aggregates in the ocean (e.g.
Hobson, PR, Krantz, EP, Lampitt, RS, Rogerson, A, Watson, J   +4 more
core  

Fast Detection of Curved Edges at Low SNR

, 2015
Detecting edges is a fundamental problem in computer vision with many applications, some involving very noisy images. While most edge detection methods are fast, they perform well only on relatively clean images.
Basri, Ronen, Galun, Meirav, Nadler, Boaz, Ofir, Nati   +3 more
core   +1 more source

Orthogonal Chirp Division Multiplexing

, 2016
Chirp waveform plays a significant role in radar and communication systems for its ability of pulse compression and spread spectrum. This paper presents a principle of orthogonally multiplexing a bank of linear chirp waveforms within the same bandwidth ...
Ouyang, Xing, Zhao, Jian
core   +1 more source

Underwater Image Enhancement Using Wavelet Fusion

International Journal for Research in Applied Science and Engineering Technology, 2022
Abstract: The underwater images are a good source of information which explores idea about sea creatures, to study about seafloor hydrother-mal vents. Low contrast, color distortion and poor visual appearance are the major issues that an underwater image has to undergo.
K. Mohanalakshmi, Asha Sreenath, Telukuntla Saikeerthi, Perpula Sahana, Mohammad Abdul Khareem   +4 more
openaire   +1 more source

A data extraction system for underwater particle holography [PDF]

, 2000
Pulsed laser holography is an extremely powerful technique for the study of particle fields as it allows instantaneous, noninvasive high-resolution recording of substantial volumes.
Craig, G, Hobson, PR, Lampitt, RS, Nareid, H, Nebrensky, JJ, Pescetto, A, Trucco, A, Watson, J   +7 more
core  

NUAM-Net: A Novel Underwater Image Enhancement Attention Mechanism Network

Journal of Marine Science and Engineering
Vision-based underwater exploration is crucial for marine research. However, the degradation of underwater images due to light attenuation and scattering poses a significant challenge.
Zhang Wen, Yikang Zhao, Feng Gao, Hao Su, Yuan Rao, Junyu Dong   +5 more
doaj   +1 more source

Fully Point-wise Convolutional Neural Network for Modeling Statistical Regularities in Natural Images

, 2018
Modeling statistical regularity plays an essential role in ill-posed image processing problems. Recently, deep learning based methods have been presented to implicitly learn statistical representation of pixel distributions in natural images and leverage
Barnard Kobus, Finlayson Graham D, He Kaiming, Howard Andrew G, Hu Yuanming, Vaezi Joze Hamid Reza, Zhang Xiangyu   +6 more
core   +1 more source

Enhance Underwater Imaging in Nonuniform Artificial Light: An Extended Benchmark Dataset and a Dual-Stream Cotraining Enhancement Model

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
In underwater remote sensing environments with low light conditions, artificial lighting has become a critical supplementary illumination source. However, due to their high intensity and localized concentration, images captured by autonomous underwater ...
Zhou Ge, Han Mei, Kunqian Li, Dalei Song
doaj   +1 more source

UNDERWATER IMAGE ENHANCEMENT

IJARCCE, 2023
Dr. Senthil Vadivu M, Swati N
openaire   +1 more source

Underwater image enhancement with Image Colorfulness Measure

, 2020
Due to the absorption and scattering effects of the water, underwater images tend to suffer from many severe problems, such as low contrast, grayed out colors and blurring content. To improve the visual quality of underwater images, we proposed a novel enhancement model, which is a trainable end-to-end neural model.
Li, Hui, Yang, Xi, Li, ZhenMing, Zhang, TianLun   +3 more
openaire   +2 more sources