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Recurrent Homography Estimation Using Homography-Guided Image Warping and Focus Transformer
Computer Vision and Pattern Recognition, 2023We propose the Recurrent homography estimation framework using Homography-guided image Warping and Focus transformer (FocusFormer), named RHWF.
Sixi Cao +6 more
semanticscholar +1 more source
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 ...
F. Perrone, P. Sava
semanticscholar +3 more sources
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
semanticscholar +3 more sources
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
semanticscholar +3 more sources
Roundness-Preserving Warping for Aesthetic Enhancement-Based Stereoscopic Image Editing
IEEE transactions on circuits and systems for video technology (Print), 2021Image editing is an effective solution to adapt contents for different applications. In this paper, we present a roundness-preserving warping model for stereoscopic image editing, in which energy constraints from image quality energy, aesthetics energy ...
Xiongli Chai +3 more
semanticscholar +1 more source
Finite Element Image Warping [PDF]
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
semanticscholar +2 more sources
Warping Residual Based Image Stitching for Large Parallax
Computer Vision and Pattern Recognition, 2020Image stitching techniques align two images captured at different viewing positions onto a single wider image. When the captured 3D scene is not planar and the camera baseline is large, two images exhibit parallax where the relative positions of scene ...
Kyu-Yul Lee, Jae-Young Sim
semanticscholar +1 more source
Instrumentation for NMR spin-warp imaging
Journal of Physics E: Scientific Instruments, 1982Implementation of a new NMR imaging technique has lead to the introduction of new instrumentation in imaging machines. The authors describe magnetic field gradient drivers and microprocessor control circuits which have increased the versatility of the system. The performance of the imaging method and improved resolution whole body images are discussed.
L M Eastwood +3 more
openaire +4 more sources
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 Jackel
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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 +3 more
openaire +3 more sources