Results 21 to 30 of about 8,844,604 (259)

A Bayesian Climate Change Detection and Attribution Assessment [PDF]

, 2005
A Bayesian analysis of the evidence for human-induced climate change in global surface temperature observations is described. The analysis uses the standard optimal detection approach and explicitly incorporates prior knowledge about uncertainty and the ...
Lee, T. C. K., Tsao, M., Zwiers, F. W., Hegerl, G. C., Zhang, X. B.   +4 more
core   +1 more source

Spaceborne SAR Time-Series Images Change Detection Based on SAR-SIFT-Logarithm Background Subtraction

Remote Sensing, 2023
Synthetic Aperture Radar (SAR) image change detection aims to detect changes with images of the same area acquired at different times. It has wide applications in environmental monitoring, urban planning and resource management.
Wenjie Shen, Yunzhen Jia, Yanping Wang, Yun Lin, Yang Li, Zechao Bai, Wen Jiang   +6 more
doaj   +1 more source

Detecting Unidentified Changes

PLoS ONE, 2014
Does becoming aware of a change to a purely visual stimulus necessarily cause the observer to be able to identify or localise the change or can change detection occur in the absence of identification or localisation? Several theories of visual awareness stress that we are aware of more than just the few objects to which we attend.
Howe, PDL, Webb, ME
openaire   +5 more sources

Unsupervised Change Detection With Kernels [PDF]

IEEE Geoscience and Remote Sensing Letters, 2012
In this letter, an unsupervised kernel-based approach to change detection is introduced. Nonlinear clustering is utilized to partition in two a selected subset of pixels representing both changed and unchanged areas. Once the optimal clustering is obtained, the learned representatives of each group are exploited to assign all the pixels composing the ...
Michele Volpi, Devis Tuia, Gustavo Camps-Valls, Mikhail F. Kanevski   +3 more
openaire   +3 more sources

Climate change detection and attribution: Beyond mean temperature signals [PDF]

, 2006
A significant influence of anthropogenic forcing has been detected in global- and continental-scale surface temperature, temperature of the free atmosphere, and global ocean heat uptake.
Xuebin Zhang, Hegerl, Gabriele C., Allen, M., Gillett, Nathan P., Bindoff, N. L., David Karoly, Nathaniel L. Bindoff, Hegerl, G. C., Karoly, D., Karoly, David J., Zwiers, Francis W., Gabriele C. Hegerl, Francis Zwiers, Karl, T. R., Bindoff, Nathaniel L., Karl, Thomas R., Zwiers, F., Zhang, X. B., Nathan Gillett, Thomas R. Karl, Myles Allen, Allen, Myles R., Gillett, N., Zhang, Xuebin   +23 more
core   +1 more source

Effects of search intent on eye-movement patterns in a change detection task

Journal of Eye Movement Research, 2015
The goal of the present study was to examine whether intention type affects eye movement patterns in a change detection task In addition, we assessed whether the eye movement index could be used to identify human implicit intent. We attempted to generate
Sangil Lee, Minho Lee, Hyeonggyu Park, Mun-Seon Chang, Ho-Wan Kwak   +4 more
doaj   +1 more source

Coordinated change detection for UAV formations [PDF]

, 2016
New tools are required to support and increase the reliability and safety of unmanned aerial vehicle (UAV) formation operations. This paper poses a new formation co-\ud ordination change detection problem as a quickest detection\ud of change in signal ...
Jason J. Ford, Troy S. Bruggemann, Bruggemann, Troy S., Ford, Jason J.   +3 more
core   +1 more source

Three Dimensional Change Detection Using Point Clouds: A Review [PDF]

, 2022
Change detection is an important step for the characterization of object dynamics at the earth’s surface. In multi-temporal point clouds, the main challenge is to detect true changes at different granularities in a scene subject to significant ...
Kharroubi, Abderrazzaq, Rafika Hajji, Roland Billen, Zouhair Ballouch, Poux, Florent, Hajji, Rafika, Ballouch, Zouhair, Abderrazzaq Kharroubi, Billen, Roland, Florent Poux   +9 more
core   +1 more source

Algebraic change-point detection [PDF]

Applicable Algebra in Engineering, Communication and Computing, 2010
Elementary techniques from operational calculus, differential algebra, and noncommutative algebra lead to a new approach for change-point detection, which is an important field of investigation in various areas of applied sciences and engineering. Several successful numerical experiments are presented.
Fliess, Michel, Join, Cédric, Mboup, Mamadou   +2 more
openaire   +7 more sources

Detecting changes in persistent scatterers [PDF]

2013 IEEE International Geoscience and Remote Sensing Symposium - IGARSS, 2013
In PSI (Persistent Scatterer Interferometry) the PSs are implicitly assumed to have a stable phase throughout a stack of images so that all images can be used for estimation. However, PSs can fade due to changes in acquisition geometry where the elevation or azimuth response of the PS for different baselines or zero Doppler frequencies is imprinted on ...
Brcic, Ramon, Adam, Nico Alexander
openaire   +1 more source