Drawing and animation using skeletal strokes
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
Multiple view geometry in computer vision
Multiple view geometry in computer vision
Artistic Vision: painterly rendering using computer vision techniques
NPAR '02 Proceedings of the 2nd international symposium on Non-photorealistic animation and rendering
Special Edition Using Adobe Photoshop 7 with CD-ROM
Special Edition Using Adobe Photoshop 7 with CD-ROM
Distinctive Image Features from Scale-Invariant Keypoints
International Journal of Computer Vision
Animating pictures with stochastic motion textures
ACM SIGGRAPH 2005 Papers
Animating Chinese paintings through stroke-based decomposition
ACM Transactions on Graphics (TOG)
ACM SIGGRAPH 2006 Papers
UIST '06 Proceedings of the 19th annual ACM symposium on User interface software and technology
Interactive design of botanical trees using freehand sketches and example-based editing
ACM SIGGRAPH 2006 Courses
Character animation from 2D pictures and 3D motion data
ACM Transactions on Graphics (TOG)
ACM SIGGRAPH 2007 papers
Approximate image-based tree-modeling using particle flows
ACM SIGGRAPH 2007 papers
Video puppetry: a performative interface for cutout animation
ACM SIGGRAPH Asia 2008 papers
3D animation creation using space canvases for free-hand drawing
VRCAI '08 Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry
Hardware-accelerated real-time rendering for 3D Sumi-e painting
ICCSA'03 Proceedings of the 2003 international conference on Computational science and its applications: PartIII
Modeling trees with a space colonization algorithm
NPH'07 Proceedings of the Third Eurographics conference on Natural Phenomena
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Chinese ink painting, known as sumi-e, is a traditional art form based on careful placement of expressive brush strokes. To extend such brush strokes from their paper form, we propose a system that can digitize and transform such paintings into 2.5D sprites, while preserving the artist's unique style. We apply our paintstroke-extraction technique to plants, the most traditional subject of sumi-e, and one where CG modeling is fairly hard, but procedural or simulated animation techniques can subsequently be brought to bear. Instead of forcing artists to use pressure-sensitive digital tablets, we address the problem of how to non-invasively decompose a real painting of a plant into semantically meaningful components, like leaves and petals. Webcam filming of the artist at work provides valuable cues. This part of our system needs no human interaction and no prior training, and achieves its goal solely by analyzing the video timeline to find even intersecting brush strokes. Afterwards, it constructs a model of the plant and textures it with the extracted brush strokes, inpainting when necessary.