Results 11 to 20 of about 287,420 (285)

Inverse Depth to Depth Conversion for Monocular SLAM [PDF]

open access: yesProceedings 2007 IEEE International Conference on Robotics and Automation, 2007
Recently it has been shown that an inverse depth parametrization can improve the performance of real-time monocular EKF SLAM, permitting undelayed initialization of features at all depths. However, the inverse depth parametrization requires the storage of 6 parameters in the state vector for each map point.
Javier Civera 0001   +2 more
openaire   +1 more source

Temperature inversions in China derived from sounding data from 1976 to 2015

open access: yesTellus: Series B, Chemical and Physical Meteorology, 2021
Temperature inversions inhibit the transfer of momentum, heat and moisture in the atmosphere and have led to severe air pollution in China. This study investigated the spatiotemporal variation in temperature inversions in China using sounding data for ...
Tingting Xu   +9 more
doaj   +1 more source

A Self-Adaptive Method for Mapping Coastal Bathymetry On-The-Fly from Wave Field Video

open access: yesRemote Sensing, 2021
Mapping coastal bathymetry from remote sensing becomes increasingly more attractive for the coastal community. It is facilitated by a rising availability of drone and satellite data, advances in data science, and an open-source mindset.
Matthijs Gawehn   +2 more
doaj   +1 more source

Video-Based Nearshore Bathymetric Inversion on a Geologically Constrained Mesotidal Beach during Storm Events

open access: yesRemote Sensing, 2022
Although geologically constrained sandy beaches are ubiquitous along wave-exposed coasts, there is still a limited understanding of their morphological response, particularly under storm conditions, which is mainly due to a critical lack of nearshore ...
Isaac Rodríguez-Padilla   +3 more
doaj   +1 more source

Geophysical and Sedimentological Investigations Integrate Remote-Sensing Data to Depict Geometry of Fluvial Sedimentary Bodies: An Example from Holocene Point-Bar Deposits of the Venetian Plain (Italy)

open access: yesRemote Sensing, 2020
Over the past few millennia, meandering fluvial channels drained coastal landscapes accumulating sedimentary successions that today are permeable pathways.
Giorgio Cassiani   +5 more
doaj   +1 more source

Delayed Inverse Depth Monocular SLAM [PDF]

open access: yesIFAC Proceedings Volumes, 2008
The 6-DOF monocular camera case possibly represents the harder variant in the context of simultaneous localization and mapping problem. In the last years, several advances have been appeared in this area; however the application of these techniques to real world applications it’s difficult so far.
Munguía Alcalá, Rodrigo Francisco   +1 more
openaire   +2 more sources

Wavelet-Based Three-Dimensional Inversion for Geomagnetic Depth Sounding

open access: yesMagnetochemistry, 2022
The complexity of Earth’s structure poses a challenge to the multiscale detection capability of geophysics. In this paper, we present a new wavelet-based three-dimensional inversion method for geomagnetic depth sounding.
Shiwen Li, Yunhe Liu
doaj   +1 more source

Inverse Designed Metalenses with Extended Depth of Focus [PDF]

open access: yesACS Photonics, 2020
We design, fabricate and characterize a cylindrical metasurface lens operating at — 625nm with a depth of focus exceeding that of an ordinary lens using adjoint optimization-based inverse electromagnetic design.
Elyas Bayati   +5 more
openaire   +3 more sources

A METHOD OF WATER DEPTH INVERSION IN COASTAL AREA CONSIDERING TEMPERATURE INFORMATION [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
The remote sensing method for water depth inversion is fast, flexible, and low in cost, which has become an important means of method for water depth detection. This paper takes the coastal area where is around Gulangyu Island as the research area. Based
Y. Liu   +5 more
doaj   +1 more source

Inverse Depth Parametrization for Monocular SLAM [PDF]

open access: yesIEEE Transactions on Robotics, 2008
We present a new parametrization for point features within monocular simultaneous localization and mapping (SLAM) that permits efficient and accurate representation of uncertainty during undelayed initialization and beyond, all within the standard extended Kalman filter (EKF).
Javier Civera 0001   +2 more
openaire   +1 more source

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