Results 11 to 20 of about 115,245 (245)
Spatiotemporal Saliency Estimation by Spectral Foreground Detection
IEEE Transactions on Multimedia, 2018 We present a novel approach for spatiotemporal saliency detection by optimizing a unified criterion of color contrast, motion contrast, appearance, and background cues. To this end, we first abstract the video by temporal superpixels. Second, we propose a novel graph structure exploiting the saliency cues to assign the edge weights.
Caglar Aytekin +5 more
openaire +3 more sources
Video foreground detection based on symmetric alpha-stable mixture models. [PDF]
, 2010 Background subtraction (BS) is an efficient technique for detecting moving objects in video sequences. A simple BS process involves building a model of the background and extracting regions of the foreground (moving objects) with the assumptions that the
Achim, A. +2 more
core +1 more source
The LISA Gravitational Wave Foreground: A Study of Double White Dwarfs [PDF]
, 1995 Double white dwarfs are expected to be a source of confusion-limited noise for the future gravitational wave observatory LISA. In a specific frequency range, this 'foreground noise' is predicted to rise above the instrumental noise and hinder the ...
Ruiter, A. J. +4 more
core +7 more sources
Foreground extraction based on anomaly detection
Electronics Letters, 2014 A robust method to detect foreground regions in video sequences is presented. For each pixel, the time series of pixel intensity is represented as symbol sequences that are trained and modelled using the Markov model to obtain the anomaly detection threshold. The foreground extraction is performed by comparing the anomaly transition probability of each
Yong Wang, Dianhong Wang
openaire +1 more source
A High-Resolution Hubble Space Telescope Study of Apparent Lyman Continuum Leakers at $z\sim3$ [PDF]
, 2015 We present $U_{336}V_{606}J_{125}H_{160}$ follow-up $HST$ observations of 16 $z\sim3$ candidate LyC emitters in the HS1549+1919 field. With these data, we obtain high spatial-resolution photometric redshifts of all sub-arcsecond components of the LyC ...
Mostardi, Robin E. +5 more
core +2 more sources
Cascaded change detection for foreground segmentation
2007 IEEE Workshop on Motion and Video Computing (WMVC'07), 2007 The extraction of relevant objects (foreground) from a background is an important first step in many applications. We propose a technique that tackles this problem using a cascade of change detection tests, including noise-induced, illumination variation and structural changes.
Luis Teixeira, Luis Corte-Real
openaire +2 more sources
A system for learning statistical motion patterns [PDF]
, 2006 Analysis of motion patterns is an effective approach for anomaly detection and behavior prediction. Current approaches for the analysis of motion patterns depend on known scenes, where objects move in predefined ways.
Fu, Z. +5 more
core +2 more sources
The Impact of Strong Gravitational Lensing on Observed Lyman-Break
Galaxy Numbers at 4
, 2015 Detection of Lyman-Break Galaxies (LBGs) at high-redshift can be affected by gravitational lensing induced by foreground deflectors not only in galaxy clusters, but also in blank fields. We quantify the impact of strong magnification in the samples of $B$
Barone-Nugent, R. L. +7 more
core +3 more sources
Precise Foreground Detection Algorithm Using Motion Estimation, Minima and Maxima Inside the Foreground Object [PDF]
IEEE Transactions on Broadcasting, 2013 In this paper the precise foreground mask is obtained in a complex environment by applying simple and effective methods on a video sequence consisting of multi-colour and multiple foreground object environment. To detect moving objects we use a simple algorithm based on block-based motion estimation, which requires less computational time.
Nawaz, M +5 more
openaire +3 more sources
A Fusion Framework for Camouflaged Moving Foreground Detection in the Wavelet Domain
, 2018 Detecting camouflaged moving foreground objects has been known to be difficult due to the similarity between the foreground objects and the background.
Cook, Chris +4 more
core +1 more source