SweepCanvas: Sketch-based 3D Prototyping on an RGB-D Image
summary
Sketch-driven tool that turns two strokes on an RGB-D photo into a swept curved surface called an s-canvas, positioning strokes by extracting scene planes with mean-shift + RANSAC and choosing plane pairs via an MRF labeling and candidate panel. Supports snapping to planes, edges or existing canvases, editing and painting; scale is user-controlled. User study with 10 participants shows the automatic mode is roughly two times faster than a manual plane-selection baseline. Limitations: needs a contextual supporting plane and cannot handle nonplanar trajectories (spirals).
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chapters (11)
- 0:00Introduction to SweepCanvas
- 1:51Challenges with RGB-D images
- 2:55System interface and demo
- 4:43Basic 3D elements and s-canvases
- 5:46Understanding scene and strokes
- 7:09Modeling stage and MRF labeling
- 9:15Snapping and auxiliary operations
- 10:52User study and results
- 13:02Limitations of the work
- 14:05Conclusion and future work
- 14:27Q&A session
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