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Digital image warping : theory and real time hardware implementation issues
, 1996 Mark Sebastian Lohmeyer
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Computer Graphics Forum, 2012
AbstractAnimated image sequences often exhibit a large amount of inter‐frame coherence which standard rendering algorithms and pipelines are ill‐equipped to exploit, limiting their efficiency. To address this inefficiency we transfer rendering results across frames using a novel image warping algorithm based on fixed point iteration.
Huw Bowles +4 more
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AbstractAnimated image sequences often exhibit a large amount of inter‐frame coherence which standard rendering algorithms and pipelines are ill‐equipped to exploit, limiting their efficiency. To address this inefficiency we transfer rendering results across frames using a novel image warping algorithm based on fixed point iteration.
Huw Bowles +4 more
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Image‐warping waveform tomography
Geophysical Prospecting, 2015ABSTRACTImaging the change in physical parameters in the subsurface requires an estimate of the long wavelength components of the same parameters in order to reconstruct the kinematics of the waves propagating in the subsurface. One can reconstruct the model by matching the recorded data with modeled waveforms extrapolated in a trial model of the ...
Francesco Perrone, Paul Sava
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Computer Graphics Forum, 2013
AbstractWe introduce a single unifying framework for a wide range of content‐aware image warping tasks using a finite element method (FEM). Existing approaches commonly define error terms over vertex finite differences and can be expressed as a special case of our general FEM model.
Peter Kaufmann +5 more
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AbstractWe introduce a single unifying framework for a wide range of content‐aware image warping tasks using a finite element method (FEM). Existing approaches commonly define error terms over vertex finite differences and can be expressed as a special case of our general FEM model.
Peter Kaufmann +5 more
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Graphical Models and Image Processing, 1998
An image warping method is presented that deforms an image continuously without foldover, while observing a given set of trajectories of feature elements. Any intermediate image during the morph is homeomorphic to the initial image and the morphing process is a homotopy.
Kikuo Fujimura, Mihail Makarov
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An image warping method is presented that deforms an image continuously without foldover, while observing a given set of trajectories of feature elements. Any intermediate image during the morph is homeomorphic to the initial image and the morphing process is a homotopy.
Kikuo Fujimura, Mihail Makarov
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LittleQuickWarp: An ultrafast image warping tool
Methods, 2015Warping images into a standard coordinate space is critical for many image computing related tasks. However, for multi-dimensional and high-resolution images, an accurate warping operation itself is often very expensive in terms of computer memory and computational time.
Lei, Qu, Hanchuan, Peng
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The Visual Computer, 1989
Image warping refers to the 2D resampling of a source image onto a target image. Despite the variety of techniques proposed, a large class of image warping problems remains inadequately solved: mapping between two images which are delimited by arbitrary, closed, planar curves, e.g., handdrawn curves.
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Image warping refers to the 2D resampling of a source image onto a target image. Despite the variety of techniques proposed, a large class of image warping problems remains inadequately solved: mapping between two images which are delimited by arbitrary, closed, planar curves, e.g., handdrawn curves.
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Image warping with feature curves
Proceedings of the 19th Spring Conference on Computer Graphics, 2003To deform graphical objects, warping methods are often used, that allow precise control of the deformation. An efficient warping technique, based on feature vectors, was introduced by T. Beier and S. Neely [Beier T. 1992], that had successfully been proven oneself in the past.
Hermann Birkholz, Dietmar Jackél
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An image-warping VR-architecture
Proceedings of the 2008 ACM symposium on Virtual reality software and technology, 2008We describe an architecture that provides a programmable display layer in order to allow the execution of custom programs on consecutive display frames. This replaces the default display behavior of repeating application frames until an update is available. The architecture is implemented using a multi-GPU system. We will show three applications of the
F. A. Smit, R. van Liere, B. Fröhlich
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1st IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, 2005., 2006
In factor analysis of sequential data (e.g., time-series or digitized images), the measurement sequence remains "intact" and is assumed to be consistent across all measurement conditions. Otherwise, recovered sequential factors would be distorted. Shifted and warped factor analyses (SFA and WFA) explicitly fit such measurement-sequence inconsistency ...
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In factor analysis of sequential data (e.g., time-series or digitized images), the measurement sequence remains "intact" and is assumed to be consistent across all measurement conditions. Otherwise, recovered sequential factors would be distorted. Shifted and warped factor analyses (SFA and WFA) explicitly fit such measurement-sequence inconsistency ...
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