Insignificant shadow detection for video segmentation [PDF]
, 2005 To prevent moving cast shadows from being misunderstood as part of moving objects in change detection based video segmentation, this paper proposes a novel approach to the cast shadow detection based on the edge and region information in multiple frames.
Dong Xu +6 more
core +2 more sources
Video SAR Moving Target Tracking Using Joint Kernelized Correlation Filter
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 Video synthetic aperture radar (ViSAR) has been found very useful for the surveillance of ground moving targets. The target energy can be utilized for ground moving target tracking, while the dynamic shadows of moving targets enable an alternative ...
Chao Zhong, Jinshan Ding, Yuhong Zhang
doaj +1 more source
Echo Cancellation : the generalized likelihood ratio test for double-talk vs. channel change [PDF]
, 2009 Echo cancellers are required in both electrical (impedance mismatch) and acoustic (speaker-microphone coupling) applications. One of the main design problems is the control logic for adaptation.
Bermudez, José Carlos Moreira +2 more
core +2 more sources
Comparison of spatial domain optimal trade-off maximum average correlation height (OT-MACH) filter with scale invariant feature transform (SIFT) using images with poor contrast and large illumination gradient [PDF]
, 2015 A spatial domain optimal trade-off Maximum Average Correlation Height (OT-MACH) filter has been previously developed and shown to have advantages over frequency domain implementations in that it can be made locally adaptive to spatial variations in the ...
Alkandri, A +5 more
core +1 more source
Echo Cancellation - A Likelihood Ratio Test for Double-talk Versus Channel Change [PDF]
, 2006 Echo cancellers are in wide use in both electrical (four wire to two wire mismatch) and acoustic (speaker-microphone coupling) applications. One of the main design problems is the control logic for adaptation.
Bershad, Neil J., Tourneret, Jean-Yves
core +2 more sources
Low-Pass Filtered Volumetric Shadows
IEEE Transactions on Visualization and Computer Graphics, 2014 We present a novel and efficient method to compute volumetric soft shadows for interactive direct volume visualization to improve the perception of spatial depth. By direct control of the softness of volumetric shadows, disturbing visual patterns due to hard shadows can be avoided and users can adapt the illumination to their personal and application ...
Marco Ament +3 more
openaire +3 more sources
Shadows cast on the transition disk of HD 135344B. Multiwavelength VLT/SPHERE polarimetric differential imaging [PDF]
, 2016 The protoplanetary disk around the F-type star HD 135344B (SAO 206462) is in a transition stage and shows many intriguing structures both in scattered light and thermal (sub-)millimeter emission which are possibly related to planet formation processes ...
Augereau, J. -C. +37 more
core +9 more sources
Multitarget Tracking Algorithm Using Multiple GMPHD Filter Data Fusion for Sonar Networks
Sensors, 2018 Multitarget tracking algorithms based on sonar usually run into detection uncertainty, complex channel and more clutters, which cause lower detection probability, single sonar sensors failing to measure when the target is in an acoustic shadow zone, and ...
Xueli Sheng +4 more
doaj +1 more source
Refined UNet V2: End-to-End Patch-Wise Network for Noise-Free Cloud and Shadow Segmentation
Remote Sensing, 2020 Cloud and shadow detection is an essential prerequisite for further remote sensing processing, whereas edge-precise segmentation remains a challenging issue.
Libin Jiao +3 more
doaj +1 more source
Vehicles Speed Estimation Model from Video Streams for Automatic Traffic Flow Analysis Systems
JOIV: International Journal on Informatics Visualization, 2023 Image and video processing have been widely used to provide traffic parameters, which will be used to improve certain areas of traffic operations. This research aims to develop a model for estimating vehicle speed from video streams to support traffic ...
Maizatul Najihah Arriffin +6 more
doaj +1 more source