Results 111 to 120 of about 22,934,898 (262)

Albufera Lagoon Ecological State Study Through the Temporal Analysis Tools Developed with PerúSAT-1 Satellite

open access: yesSensors
The Albufera of Valencia (Spain) is a representative case of pressure on water quality, which caused the hypertrophic state of the lake to completely change the ecosystem that once featured crystal clear waters.
Bárbara Alvado   +8 more
doaj   +1 more source

Guidance-base Diffusion Models for Improving Photoacoustic Image Quality [PDF]

open access: yesBMVC 2024
Photoacoustic(PA) imaging is a non-destructive and non-invasive technology for visualizing minute blood vessel structures in the body using ultrasonic sensors. In PA imaging, the image quality of a single-shot image is poor, and it is necessary to improve the image quality by averaging many single-shot images.
arxiv  

Systematic review of image segmentation using complex networks [PDF]

open access: yesarXiv
This review presents various image segmentation methods using complex networks. Image segmentation is one of the important steps in image analysis as it helps analyze and understand complex images. At first, it has been tried to classify complex networks based on how it being used in image segmentation.
arxiv  

Physics-Inspired Synthesized Underwater Image Dataset [PDF]

open access: yesarXiv
This paper introduces the physics-inspired synthesized underwater image dataset (PHISWID), a dataset tailored for enhancing underwater image processing through physics-inspired image synthesis. For underwater image enhancement, data-driven approaches (e.g., deep neural networks) typically demand extensive datasets, yet acquiring paired clean and ...
arxiv  

A metalens for detecting fractional-order optical vortices

open access: yesКомпьютерная оптика
In this work, a metalens for detecting an incident field with a fractional topological charge ranging from – 2 to 0 is proposed. The metalens is based on a spiral zone plate with a topological charge of 1.5.
A.G. Nalimov   +3 more
doaj   +1 more source

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