Results 31 to 40 of about 46,099 (288)

Adaptive polarimetric image representation for contrast optimization of a polarized beacon through fog [PDF]

, 2015
We present a contrast-maximizing optimal linear representation of polarimetric images obtained from a snapshot polarimetric camera for enhanced vision of a polarized light source in obscured weather conditions (fog, haze, cloud) over long distances ...
Alouini, Mehdi, Fade, Julien, Panigrahi, Swapnesh   +2 more
core   +3 more sources

Underwater Optical Imaging: Methods, Applications and Perspectives

Remote Sensing
Underwater optical imaging is essential for exploring the underwater environment to provide information for planning and regulating underwater activities in various underwater applications, such as aquaculture farm observation, underwater topographical ...
Yansheng Hao, Yaoyao Yuan, Hongman Zhang, Ze Zhang   +3 more
doaj   +1 more source

Polarimetric Calculation Method of Global Pixel for Underwater Image Restoration

IEEE Photonics Journal, 2021
The estimation of the degree of polarization of backscattered light and target light is the key to realize scattering removal in underwater polarimetric imaging.
HaiHong Jin, LiJin Qian, Jun Gao, ZhiGuo Fan, Jie Chen   +4 more
doaj   +1 more source

UNDERWATER IMAGE ENHANCEMENT BASED ON POLARIZATION IMAGING [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
The need of high-quality underwater imaging is obviously required in many underwater applications. For example, underwater archaeology, underwater ecological research, underwater object detection and tracking.
L. Shen, Y. Zhao
doaj   +1 more source

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

, 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., Cumming, D.R.S., Saillant, J-F., Triger, S., Wallace, J.   +4 more
core   +1 more source

A Low-Cost Modulated Laser-Based Imaging System Using Square Ring Laser Illumination for Depressing Underwater Backscatter

Photonics
Underwater vision data facilitate a variety of underwater operations, including underwater ecosystem monitoring, topographical mapping, mariculture, and marine resource exploration.
Yansheng Hao, Yaoyao Yuan, Hongman Zhang, Shao Zhang, Ze Zhang   +4 more
doaj   +1 more source

Underwater Hyperspectral Target Detection with Band Selection

Remote Sensing, 2020
Compared to multi-spectral imagery, hyperspectral imagery has very high spectral resolution with abundant spectral information. In underwater target detection, hyperspectral technology can be advantageous in the sense of a poor underwater imaging ...
Xianping Fu, Xiaodi Shang, Xudong Sun, Haoyang Yu, Meiping Song, Chein-I Chang   +5 more
doaj   +1 more source

Flexible large-area ultrasound arrays for medical applications made using embossed polymer structures

Nature Communications
With the huge progress in micro-electronics and artificial intelligence, the ultrasound probe has become the bottleneck in further adoption of ultrasound beyond the clinical setting (e.g. home and monitoring applications).
Paul L. M. J. van Neer, Laurens C. J. M. Peters, Roy G. F. A. Verbeek, Bart Peeters, Gerard de Haas, Lars Hörchens, Laurent Fillinger, Thijs Schrama, Egon J. W. Merks-Swolfs, Kaj Gijsbertse, Anne E. C. M. Saris, Moein Mozaffarzadeh, Jan M. Menssen, Chris L. de Korte, Jan-Laurens P. J. van der Steen, Arno W. F. Volker, Gerwin H. Gelinck   +16 more
doaj   +1 more source

Calculation and Analysis of Key Parameters of Underwater Optical Imaging System

Sensors
When photographing objects underwater, it is important to utilize an optical window to isolate the imaging device from the water. The properties of the entire imaging system will change, and the imaging quality will decrease due to the refraction impact ...
Guangpeng Zhou, Ying Liu, Boshi Dang, Chen Yu, Linhan Li, Jie Du, Junlin Ma, Xinyue Liu   +7 more
doaj   +1 more source

Active Polarization Imaging for Cross-Linear Image Histogram Equalization and Noise Suppression in Highly Turbid Water

Photonics, 2023
The absorption and scattering of impurity particles in turbid water cause the target signal light to be attenuated and to produce backscattered light, resulting in the reduced quality of underwater polarimetric imaging.
Huajun Zhang, Jianrui Gong, Mingyuan Ren, Ning Zhou, Hantao Wang, Qingguo Meng, Yu Zhang   +6 more
doaj   +1 more source