Paper Info
Title
Sketch-based warping of RGBN images
Abstract
While current image deformation methods are careful in making the new geometry seem right, little attention has been given to the photometric aspects. We introduce a deformation method that results in coherently illuminated objects. For this task, we use RGBN images to support a relighting step integrated in a sketch-based deformation method. We warp not only colors but also normals. Normal warping requires smooth warping fields. We use sketches to specify sparse warping samples and impose additional constraints for region of interest control. To satisfy these new constraints, we present a novel image warping method based on Hermite-Birkhoff interpolation with radial basis functions that results in a smooth warping field. We also use sketches to help the system identify both lighting conditions and material from single images. We present results with RGBN images from different sources, including photometric stereo, synthetic images, and photographs.
Year
DOI
Venue
2011
10.1016/j.gmod.2010.11.001
Graphical Models
Keywords
Field
DocType
deformation method,warping,rgbn image,new constraint,normal warping,hermite–birkhoff radial basis functions,smooth warping field,novel image,sparse warping sample,rgbn images,sketch-based deformation method,sketch-based interfaces,image deformations,current image deformation method,new geometry,sketch-based warping,radial basis function,image warping,region of interest,photometric stereo,satisfiability
Computer vision,Radial basis function,Image warping,Geo warping,Interpolation,Image deformation,Artificial intelligence,Region of interest,Photometric stereo,Mathematics,Sketch
Journal
Volume
Issue
ISSN
73
4
Graphical Models
Citations 
PageRank 
References 
4
0.41
31
Authors
6
Name
Order
Citations
PageRank
thiago pereira1415.08
Emilio Vital Brazil25710.75
Ives Macêdo3806.18
Mario Costa Sousa498668.96
Luiz Henrique de Figueiredo562962.99
Luiz Velho61162120.74