Scene Segmentation from Visual Motion Using Global Optimization
IEEE Transactions on Pattern Analysis and Machine Intelligence
Motion segmentation and qualitative dynamic scene analysis from an image sequence
International Journal of Computer Vision
Computing occluding and transparent motions
International Journal of Computer Vision
Compact Representations of Videos Through Dominant and Multiple Motion Estimation
IEEE Transactions on Pattern Analysis and Machine Intelligence
Direct incremental model-based image motion segmentation for video analysis
Signal Processing - Video segmentation for content-based processing manipulation
Image Registration for Digital Subtraction Angiography
International Journal of Computer Vision
CVPR '96 Proceedings of the 1996 Conference on Computer Vision and Pattern Recognition (CVPR '96)
Multiple motion analysis: in spatial or in spectral domain?
Computer Vision and Image Understanding
Motion estimation of transparent objects in the frequency domain
Signal Processing
Geodesic active regions and level set methods for motion estimation and tracking
Computer Vision and Image Understanding
Separating Transparent Layers of Repetitive Dynamic Behaviors
ICCV '05 Proceedings of the Tenth IEEE International Conference on Computer Vision (ICCV'05) Volume 1 - Volume 01
Graph Cuts and Efficient N-D Image Segmentation
International Journal of Computer Vision
Multiple motion estimation and segmentation in transparency
ICASSP '00 Proceedings of the Acoustics, Speech, and Signal Processing, 2000. on IEEE International Conference - Volume 04
Multiresolution parametric estimation of transparent motions and denoising of fluoroscopic images
MICCAI'05 Proceedings of the 8th international conference on Medical image computing and computer-assisted intervention - Volume Part II
Motion-based segmentation of transparent layers in video sequences
MRCS'06 Proceedings of the 2006 international conference on Multimedia Content Representation, Classification and Security
Two-dimensional matched filtering for motion estimation
IEEE Transactions on Image Processing
A robust multiscale B-spline function decomposition for estimating motion transparency
IEEE Transactions on Image Processing
Multi-layer deformation estimation for fluoroscopic imaging
IPMI'13 Proceedings of the 23rd international conference on Information Processing in Medical Imaging
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This paper is concerned with the estimation of the motions and the segmentation of the spatial supports of the different layers involved in transparent X-ray image sequences. Classical motion estimation methods fail on sequences involving transparent effects since they do not explicitly model this phenomenon. We propose a method that comprises three main steps: initial block-matching for two-layer transparent motion estimation, motion clustering with 3D Hough transform, and joint transparent layer segmentation and parametric motion estimation. It is validated on synthetic and real clinical X-ray image sequences. Secondly, we derive an original transparent motion compensation method compatible with any spatiotemporal filtering technique. A direct transparentmotion compensation method is proposed. To overcome its limitations, a novel hybrid filter is introduced which locally selects which type of motion compensation is to be carried out for optimal denoising. Convincing experiments on synthetic and real clinical images are also reported.