A Unified MultiSurface,MultiResolution Workspace with 一个统一的多平面，多分辨率的工作空间.pptVIP

A Unified Multi-Surface, Multi-Resolution Workspace withCamera-Based Scanning and Projector-Based Illumination Multi-Projector Display Previous Work Workspace Configuration Calibration Cameras pre-calibrated Project structured light to determine Projector calibration Workspace geometry RANSAC-based plane-fitting. [Quirk EDT ’06] Also, display structure light with LCD Calibrate as a projector Two-Pass Rendering Determine image warping to remove distortion caused by surface geometry Single vs Multi-Surface Content Two methods of display Single vs. multi-surface Single Surface Content User selects region where the window should appear Compute P-Matrix from 3D-2D corner correspondences Choose arbitrary COP Two-pass rendering determines what to project Multi-Surface Content Same as for single surface, except that COP is user viewpoint Viewpoint can be obtained from separate tracking system Projector-Based Illumination Projection of imagery onto certain objects is often undesirable Simple interface allows imagery to be replaced with illumination Camera-Based Scanning User selects copy area with selection window Selection window rendered as a single-surface window Camera-Based Scanning Remove perspective distortion using two-pass rendering Video Contributions Two-pass rendering as a unifying framework for digital workspaces Image generation Rectified single surface imagery Perspectively correct multi-surface imagery Camera-based scanning Removal of perspective distortion LCD panel as a projector Simplifies calibration/rendering Future Work Automatic object illumination Camera-based detection of objects occluding projection Improved scanning resolution Trigger optical zoom, multi-camera super-resolution etc. Continuous calibration Online calibration monitoring and refinement * T. Johnson, H. Fuchs, “A Unified Multi-Surface, Multi-Resolution Workspace” Tyler Johnson and Henry Fuchs University of North Carolina – Chapel Hill IPT/EGVE