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Image and video based painterly animation

James Hays, Irfan Essa
2004 Proceedings of the 3rd international symposium on Non-photorealistic animation and rendering - NPAR '04  
We present methods for modifying the properties of these brush strokes according to the input images, videos, or motions.  ...  Painterly animations are generated using a mesh of brush stroke objects with dynamic spatio-temporal properties.  ...  Acknowledgements We are grateful to Gabriel Brostow and Tony Haro for their suggestions and assistance with this work.  ... 
doi:10.1145/987657.987676 dblp:conf/npar/HaysE04 fatcat:eq5prcipjzeg3ezunv5a3zltyq

State-of-the-Art Report on Temporal Coherence for Stylized Animations

Pierre Bénard, Adrien Bousseau, Joëlle Thollot
2011 Computer graphics forum (Print)  
We formalize the problem of temporal coherence in terms of goals and compare existing methods accordingly.  ...  These goals are inherently conflicting and any attempt to address the temporal coherence of stylized animations is a trade-off.  ...  This work has been sponsored by the Animare (ANR-08-JCJC-0078-01) project. Adrien Bousseau thanks the Eurographics PhD award committee for the invitation to submit this Stateof-the-Art paper.  ... 
doi:10.1111/j.1467-8659.2011.02075.x fatcat:7tfrqxq4djda3p5hpolj5ie5ni

Interactive painterly stylization of images, videos and 3D animations

Jingwan Lu, Pedro V. Sander, Adam Finkelstein
2010 Proceedings of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games - I3D 10  
The strokes are rendered as point sprites with textures. Temporal coherence is achieved by treating the brush strokes as particles and moving them based on optical flow.  ...  In order to exploit the parallel nature of GPUs, our algorithm determines the placement of strokes entirely from local pixel neighborhood information.  ...  Acknowledgements We thank the I3D reviewers for their suggestions for improving the paper. Many of our images are based on pictures by Jianming Lu.  ... 
doi:10.1145/1730804.1730825 dblp:conf/si3d/LuSF10 fatcat:7xcv7fnb7bg3vbtibv2wo2jm7i

Temporally Coherent Video Stylization [chapter]

Pierre Bénard, Joëlle Thollot, John Collomosse
2012 Computational Imaging and Vision  
These representations enable the rotoscoping of rendering marks on to temporally coherent video regions, enhancing the diversity and temporal coherence of stylization.  ...  In discussing coherence, we formalize the problem of temporal coherence in terms of three defined criteria, and compare and contrast video stylization using these.  ...  In terms of our criteria for temporal coherence (Section 13.1.2), since the marks (e.g. brush strokes) are usually small with respect to object size, their motion remains very close to the original motion  ... 
doi:10.1007/978-1-4471-4519-6_13 fatcat:rzfrfol6erdr3bldrw4xtjt4dq

A non-photorealistic rendering framework with temporal coherence for augmented reality

Jiajian Chen, Greg Turk, Blair MacIntyre
2012 2012 IEEE International Symposium on Mixed and Augmented Reality (ISMAR)  
We also propose a general method for averaging various properties of brush stroke textures, such as their skeletons and colors, to further improve the temporal coherence.  ...  The 2D projections of these samples are uniformly distributed in image space for optimal brush stroke placement.  ...  A major challenge for NPR is maintaining temporal coherence.  ... 
doi:10.1109/ismar.2012.6402552 dblp:conf/ismar/ChenTM12 fatcat:tbxosan64zdc5b6vsyawwozx7m

Robust stroke-based video animation via layered motion and correspondence

Tao Lin, Liang Lin, Qing Wang
2012 Proceedings of the 20th ACM international conference on Multimedia - MM '12  
In the traditional painterly animation methods, the brush strokes are propagated over video frames by calculating optical flows, and the visual impression of animations are severely affected by incorrect  ...  The quantitative evaluations of brush stabilization is presented as well.  ...  The result demonstrates that our approach is more stable in complicate motion, as shown in Fig.5 . It shows the advantage of our approach in maintaining temporal coherence.  ... 
doi:10.1145/2393347.2396298 dblp:conf/mm/LinLW12 fatcat:tpfkwflcaffztbv7l2vmxj7oxu

Stylized Liquid Animation with Temporal Coherence

Hao Jing, Bingfeng Zhou
2007 2007 10th IEEE International Conference on Computer-Aided Design and Computer Graphics  
Laplacian scheme smoothing in time axes is introduced to maintain temporal coherence in animation. This algorithm can reduce the stroke "twinkle" phenomenon among frames.  ...  Stylized liquid animation with temporal coherence. Journal of Software, 2007,18(Suppl.): 1−7. Abstract: Stylized liquid animations are produced in this paper.  ...  Journal of Software 软件学报 Vol. 18, Supplement, December 2007 common, since the temporal coherence among frames is hard to maintain.  ... 
doi:10.1109/cadcg.2007.4407845 dblp:conf/cadgraphics/JingZ07 fatcat:gd55mf7lxndy7dkzcknwsp24fq

Coherent stylized silhouettes

Robert D. Kalnins, Philip L. Davidson, Lee Markosian, Adam Finkelstein
2003 ACM Transactions on Graphics  
We describe a way to render stylized silhouettes of animated 3D models with temporal coherence. Coherence is one of the central challenges for non-photorealistic rendering.  ...  We demonstrate various coherence effects for stylized silhouettes with a robust working system.  ...  Acknowledgments We thank Grady Klein for the animated cactuses, Michael Kowalski for production help, and Doug DeCarlo and Szymon Rusinkiewicz for helpful discussions.  ... 
doi:10.1145/882262.882355 fatcat:2ya7sf6u2bhhzcfxl7p6kawtr4

Coherent stylized silhouettes

Robert D. Kalnins, Philip L. Davidson, Lee Markosian, Adam Finkelstein
2003 ACM SIGGRAPH 2003 Papers on - SIGGRAPH '03  
We describe a way to render stylized silhouettes of animated 3D models with temporal coherence. Coherence is one of the central challenges for non-photorealistic rendering.  ...  We demonstrate various coherence effects for stylized silhouettes with a robust working system.  ...  Acknowledgments We thank Grady Klein for the animated cactuses, Michael Kowalski for production help, and Doug DeCarlo and Szymon Rusinkiewicz for helpful discussions.  ... 
doi:10.1145/1201775.882355 fatcat:wmz66el3n5fv7ax37dg3sdtac4

Painterly rendering techniques: a state-of-the-art review of current approaches

Siddharth Hegde, Christos Gatzidis, Feng Tian
2012 Computer Animation and Virtual Worlds  
Many methods attempt to provide more automation with the use of varying forms of reference data.  ...  While previous surveys concentrate on the broader subject of non-photorealistic rendering, the focus of this paper is firmly placed on painterly rendering techniques.  ...  Temporal Coherence A considerable amount of recent research has focused on generating temporally coherent strokes that are capable of creating animated paintings.  ... 
doi:10.1002/cav.1435 fatcat:o63txcye5rhnri5zmbc55mx4kq

Consistent Media Model for Real-Time Scene Rendering [article]

Farès Belhadj, Jordane Suarez, Vincent Boyer
2012 Eurographics State of the Art Reports  
Furthermore, we propose to use the abstraction of obtained results as an entry of a fractal surface reconstruction process that provides additional effects of traditional media such as brush stroke effects  ...  We present a consistent model for artistic media reproduction in 3D scene renderings and animations.  ...  Our consistent and coherent grain generation is a compromise and we favor the temporal continuity and the coherence of motion.  ... 
doi:10.2312/conf/eg2012/posters/039-040 fatcat:jptclq3dhjb5nlyfoa3spnkbea

Processing images and video for an impressionist effect

Peter Litwinowicz
1997 Proceedings of the 24th annual conference on Computer graphics and interactive techniques - SIGGRAPH '97  
Our method is the first to exploit temporal coherence in video clips to design an automatic filter with a hand-drawn animation quality, in this case, one that produces an Impressionist effect.  ...  This paper proceeds through the process step by step, providing helpful hints for tuning the off-the-shelf parts as well as describing the new techniques and bookkeeping used to glue the parts together  ...  ACKNOWLEDGEMENTS Thanks to Apple Re search Labs for sponsoring this work, Gavin Miller for many ideas, and the reviewers who provided a careful reading of this paper.  ... 
doi:10.1145/258734.258893 dblp:conf/siggraph/Litwinowicz97 fatcat:wqtqtnrscrhhrfmfj3ukqawihi

GPU Real-Time Medium Model for Artistic Temporally Coherent Rendering

B. Fares, S. Jordane, B. Vincent
2012 2012 Eighth International Conference on Signal Image Technology and Internet Based Systems  
Moreover, in contrast with existing methods in which coherence is primarily maintained during walkthroughs, our strategy consists in maintaining the grain attachment for any object rotations and non z-axis  ...  Computer generated stylized animations should reproduce the medium used by the artists while avoiding the artifacts present in hand-drawn animations.  ...  For the addition material generation with the fractal surface reconstruction, we improve the motion coherence to the detriment of temporal continuity.  ... 
doi:10.1109/sitis.2012.54 dblp:conf/sitis/BelhadjSB12 fatcat:ifgl2dmrdnbjnpc36zulll4xam

Painting patches: Reducing flicker in painterly re-rendering of video

SongHai Zhang, Qiang Tong, ShiMin Hu, Ralph Martin
2011 Science China Information Sciences  
A further advantage is consistent rendering of regions before and after brief occlusion, enhancing temporal stability of the output of discontiguous frames.  ...  Previous methods typically place and adjust strokes on a frame by frame basis, guided by an analysis of motion vectors.  ...  This approach allows us maintain stroke coherence at edges of objects and the boundaries of each frame, as well as for objects which are present in discontiguous sequences of frames. Ref.  ... 
doi:10.1007/s11432-011-4409-2 fatcat:cuo26int25cl5jeoizrs4v7mgy

Stylized strokes for coherent line drawings

Liming Lou, Lu Wang, Xiangxu Meng
2015 Computational Visual Media  
Temporal coherence is one of the central challenges for rendering a stylized line.  ...  We also introduce a 3D parameter propagation and re-parameterization procedure to construct stroke paths along the 2D brush path to draw coherently stylized feature lines with a wide range of styles.  ...  Acknowledgements We would like to thank the anonymous reviewers for helpful suggestions. This work was supported by the National Natural Science Foundation of China (Nos.  ... 
doi:10.1007/s41095-015-0009-1 fatcat:w5ds4rxkuzasheonh6m2r4dib4
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