Results 31 to 40 of about 133,514 (345)

CRATER DETECTION USING TEXTURE FEATURE AND RANDOM PROJECTION DEPTH FUNCTION [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
In this paper, a novel automatic crater detection algorithm (CDA) based on traditional texture feature and random projection depth function has been proposed.
Y. Wang, Y. Wang, X. Tong, X. Tong, H. Xie, H. Xie, M. Jiang, M. Jiang, Y. Huang, Y. Huang, S. Liu, S. Liu, X. Xu, X. Xu, Q. Du, Q. Wang, Q. Wang, C. Wang, C. Wang   +18 more
doaj   +1 more source

Multicriteria Selection of Elevation Control and Image Tie Points for Block Adjustment of ZY-3 Images and ICESat Data in Antarctica

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Integrating optical satellite images and laser altimetry data is essential to achieve high-accuracy mapping, especially in areas without ground control points.
Shijie Liu, Zhida Bai, Xiaofeng Gao, Huan Xie, Yanmin Jin, Hao Wu, Xiaohua Tong   +6 more
doaj   +1 more source

The Relative Lyapunov Indicators: Theory and Application to Dynamical Astronomy [PDF]

, 2015
A recently introduced chaos detection method, the Relative Lyapunov Indicator (RLI) is investigated in the cases of symplectic mappings and continuous Hamiltonian systems.
Maffione, Nicolás, Sándor, Zsolt
core   +4 more sources

Retrieving water ice abundance in representative regions of the Moon’s South Pole using topography corrected SELENE MI images

Geoscience Letters
Previous studies have reported the existence of water ice in the lunar polar regions, but estimations of water ice using different methods vary in certainty, precision, location, and abundance.
Xindi Long, Chao Wang, Siji Sanlang, Yongjiu Feng, Xiong Xu, Huan Xie, Xiaohua Tong   +6 more
doaj   +1 more source

RAP-Net: A Region Affinity Propagation-Guided Semantic Segmentation Network for Plateau Karst Landform Remote Sensing Imagery

Remote Sensing
Karst rocky desertification on the Qinghai–Tibet Plateau poses a severe threat to the region’s fragile ecosystem. Accordingly, the rapid and accurate delineation of plateau karst landforms is essential for monitoring ecological degradation and guiding ...
Dongsheng Zhong, Lingbo Cai, Shaoda Li, Wei Wang, Yijing Zhu, Yaning Liu, Ronghao Yang   +6 more
doaj   +1 more source

The domination of Saturn's low latitude ionosphere by ring `rain' [PDF]

, 2013
Saturn's ionosphere is produced when the otherwise neutral atmosphere is exposed to a flow of energetic charged particles or solar radiation. At low latitudes the latter should result in a weak planet-wide glow in infrared (IR), corresponding to the ...
Baines, K. H., Blake, J. S. D., Cowley, S. W. H., Jones, G. H., Melin, H., Miller, S., O'Donoghue, J., Stallard, T. S.   +7 more
core   +2 more sources

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

SHARAD-Based Detection and Estimation of Water–Ice Content in Korolev Crater at the North Pole of Mars

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The quest for water–ice is critical in the scientific exploration of Mars, as areas where water reservoirs have been identified could be attractive landing sites for future missions.
Yongjiu Feng, Yiyan Dong, Rong Wang, Yuze Cao, Peiqi Wu, Shurui Chen, Jingbo Sun, Yuhao Wang, Mengrong Xi, Xiaohua Tong   +9 more
doaj   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Generative 3D Reconstruction of Martian Surfaces using Monocular Images [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
High-resolution digital terrain models (DEM) are crucial for Mars scientific exploration and engineering demands, such as mission route planning, landing site selection, and topography research.
J. Cao, R. Huang, R. Huang, Z. Ye, Z. Ye, Y. Xu, Y. Xu, X. Tong, X. Tong   +8 more
doaj   +1 more source