Results 11 to 20 of about 41,289 (265)

Assessment of Multi-Spectral Imagery and Machine Learning Algorithms for Shallow Water Bathymetry Inversion

open access: yesRedai dili, 2023
The eastern coastal zone of Hainan Island is an important scenic belt and concentrated area of tourism resources in Hainan Province. Due to natural factors such as sea level rise and human factors such as coastal reclamation, the ecosystem in this area ...
Wang Zhaofan   +9 more
doaj   +1 more source

DETECTION AND MODELING OF TEMPERATURE INVERSION IN THE ATMOSPHERE USING MODIS IMAGES (CASE STUDY: KERMANSHAH) [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Increase of temperature with height in the troposphere is called temperature inversion. Parameters such as strength and depth are characteristics of temperature inversion.
H. Kachar   +3 more
doaj   +1 more source

Water deep mapping from HJ-1B satellite data by a deep network model in the sea area of Pearl River Estuary, China

open access: yesOpen Geosciences, 2021
Remote sensing (RS) water depth inversion is an important technology and the method of water depth measurement. Taking the waters around the islands outside the Pearl River Estuary as an example, five optical RS depth inversion algorithms were introduced.
Zhao Xiaoning   +10 more
doaj   +1 more source

Inversion of the Full-Depth Temperature Profile Based on Few Depth-Fixed Temperatures

open access: yesRemote Sensing, 2022
Seawater temperature plays a key role in underwater acoustics and marine fishery, etc. In oceanographic surveys, it is often desirable to detect the temperature profile and obtain its spatio-temporal variation.
Qianqian Li   +5 more
doaj   +1 more source

Binocular Depth Inversion [PDF]

open access: yesScientific American, 1981
Binocular Depth Inversion Sometimes a solid object seen with both eyes can seem to reverse perspective. A study of this geometrically irrational experience suggests that ordinary depth perception is somewhat precarious by John A Visitor to the Haunted Mansion at Disneyland in California sees among other things a pair of hu­ man faces that appear to ...
openaire   +3 more sources

Underwater Topography Inversion in Liaodong Shoal Based on GRU Deep Learning Model

open access: yesRemote Sensing, 2020
The Liaodong Shoal in the east of the Bohai Sea has obvious water depth variation. The clear shallow water area and deep turbid area coexist, which is characterized by complex submarine topography.
Zihao Leng   +3 more
doaj   +1 more source

Corrosion Depth Inversion Method Based on the Lift-Off Effect of the Capacitive Imaging (CI) Technique

open access: yesIEEE Access, 2020
As a new Non-destructive Evaluation (NDE) technique, capacitive imaging (CI) has been used to detect defects in oil pipelines, composite sucker rods and storage tanks in recent years.
Xiaokang Yin   +4 more
doaj   +1 more source

Depth Limits in Body Wave Inversions [PDF]

open access: yesGeophysical Journal International, 1972
Summary The Wiechert-Herglotz integral provides a direct means of calculating a seismic velocity-depth (v-d) curve from a continuous ray parameter-distance (p-Δ) curve. There is a straightforward method by which this approach can be extended to determine a velocity-depth envelope for any set of T - Δ or p - Δ data.
G. A. McMechan, R. A. Wiggins
openaire   +1 more source

Avoiding negative depth in inverse depth bearing-only SLAM [PDF]

open access: yes2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2008
In this paper we consider ways to alleviate negative estimated depth for the inverse depth parameterisation of bearing-only SLAM. This problem, which can arise even if the beacons are far from the platform, can cause catastrophic failure of the filter.We consider three strategies to overcome this difficulty: applying inequality constraints, the use of ...
M.P. Parsley, S.J. Julier
openaire   +1 more source

A Convolutional Neural Network with Spatial Location Integration for Nearshore Water Depth Inversion

open access: yesSensors, 2023
Nearshore water depth plays a crucial role in scientific research, navigation management, coastal zone protection, and coastal disaster mitigation. This study aims to address the challenge of insufficient feature extraction from remote sensing data in ...
Chunlong He   +3 more
doaj   +1 more source

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