Results 31 to 40 of about 3,190,793 (203)

Estimation of tree height and aboveground biomass of coniferous forests in North China using stereo ZY-3, multispectral Sentinel-2, and DEM data

open access: yesEcological Indicators, 2021
The forest tree height and aboveground biomass (AGB) are important indicators for monitoring changes and trends in forest carbon storage and terrestrial carbon fluxes.
Yueting Wang, Xiaoli Zhang, Zhengqi Guo
doaj   +1 more source

Advances in Stereo Matching for Disparity Estimation from Satellite Imagery: Traditional Scanline Aggregation Methods versus Deep Learning-Based RAFTStereo [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Stereo image analysis plays a critical role in geospatial domains, enabling the generation of high-resolution disparity maps from satellite imagery, and these maps are essential for producing accurate 3D surface models used in applications such as ...
Y. N. Sayın   +3 more
doaj   +1 more source

A Two-Step Block Adjustment Method for DSM Accuracy Improvement with Elevation Control of ICESat-2 Data

open access: yesRemote Sensing, 2022
Digital surface models (DSMs) have been widely utilized in various applications as fundamental geographic information data. Block adjustment is normally performed on satellite images to enhance the geometric accuracy and DSMs are then generated by stereo
Xin Zhang   +6 more
doaj   +1 more source

Low‐Outgassing Liquid Metal–Silicone Composites for Multifunctional Space Applications

open access: yesAdvanced Materials Technologies, EarlyView.
Integrating liquid metal microdroplets into a space‐grade silicone creates a multifunctional composite while preserving its inherent flexibility and low‐outgassing behavior. The composite has 11×$\times$ higher thermal conductivity while remaining thermally stable and maintaining a total mass loss of ≤$\le$ 1% under thermal vacuum testing.
Spencer Pak   +5 more
wiley   +1 more source

Refinement of urban digital elevation models from very high resolution stereo satellite images [PDF]

open access: yes, 2009
Digital elevation models (DEM) of high resolution and high quality are required for many applications like urban modeling, readiness for catastrophes or disaster assessment.
Reinartz, Peter, Krauß, Thomas
core  

Study on the Application of Water Resource Management Based on GF-7 Stereo Mapping Satellite [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
GF-7 satellite was successfully launched on 3 Nov 2019. The two-line stereo camera can effectively obtain 20 km-width panchromatic stereo images with resolution better than 0.8m and 3.2m-resolution multispectral images. Through the composite mapping mode
K. Liu, L. Liu, Z. Luo, Y. Gan
doaj   +1 more source

EVALUATION OF SELECTED COST AGGREGATION METHODS ON HIGH RESOLUTION SATELLITE STEREO IMAGES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Dense stereo processing requires a critical step that called cost aggregation or cost optimization. Most of the cost aggregation methods are evaluated on close range stereo images from Middlebury or KITTI datasets. While the effect of cost aggregation on
N. Tatar, H. Arefi
doaj   +1 more source

Analysis of PlanetScope Dove Digital Surface Model Accuracy Using Geometrically Simulated Images

open access: yesRemote Sensing, 2023
Many objectives in geoscience and engineering require Earth surface elevations at greater temporospatial resolution and coverage than are currently available.
Myoung-Jong Noh, Ian M. Howat
doaj   +1 more source

Continuum Robots in Surgery: From Engineering Design to Clinical Practice

open access: yesAdvanced Robotics Research, EarlyView.
The hyper‐redundant nature of continuum robot structures enables near‐infinite degrees of freedom leading to immense potential for medical applications. This review provides a historical background of continuum robots and novel ideas shaping their progress to current structural design, sensing technology, modeling techniques, and control methods.
Griffin Smith   +6 more
wiley   +1 more source

Evaluation of Stereo Matching Costs on Close Range, Aerial and Satellite Images [PDF]

open access: yes, 2012
In the last years, most dense stereo matching methods use evaluation on the Middlebury stereo vision benchmark datasets. Most recent stereo algorithms were designed to perform well on these close range stereo datasets with relatively small baselines and ...
Butenuth, Matthias   +2 more
core  

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