A butterfly subdivision scheme for surface interpolation with tension control
ACM Transactions on Graphics (TOG)
A unified approach to subdivision algorithms near extraordinary vertices
Computer Aided Geometric Design
A Method for Analysis of C1-Continuity of Subdivision Surfaces
SIAM Journal on Numerical Analysis
iLamps: geometrically aware and self-configuring projectors
ACM SIGGRAPH 2003 Papers
Camera-Based Calibration Techniques for Seamless Multiprojector Displays
IEEE Transactions on Visualization and Computer Graphics
Practical Methods for Geometric and Photometric Correction of Tiled Projector
CVPRW '06 Proceedings of the 2006 Conference on Computer Vision and Pattern Recognition Workshop
Composite 2 subdivision surfaces
Computer Aided Geometric Design
| Hi-index | 0.00 |
A novel method based on subdivision mesh for geometric calibration problem is proposed, which can correct the projector imagery on smooth curved screen with respect to the screen geometry and the observer's position. Using sparse initial mesh extracted from the image of camera and a special designed subdivision algorithm, we can subdivide the initial mesh into arbitrary precision. Hence, the one-one correspondence of pixels between the frame buffer of projector and image of camera can be established. Using this correspondence, we can transform the projector imagery into any shape through the image of camera. So the geometric calibration can be done easily by mapping all pixels of frame-buffer image to an undistorted mesh on curved screen specified by a laser theodolite. Theoretical analysis and experimental results show that the method can automatically, accurately and rapidly display an undistorted image on curved screen, without any projector and camera registrations or prior knowledge of screen.