XCode for Real Time Perspective Correction of Projector Image



I investigate a new approach for determining the pre-warp homography required to correct a projector image for perspective when projecting on a single flat surface. By using a depth camera placed at a fixed transform near the projector, the normal of the surface can be predicted in real time. By updating a homography on the image to be projected based on the projector intrinsics and the surface normal, the image can be correctly pre-warped in real time. This allows for applications where the surface and the projector/camera pair can be moved while the projection remains rectangular and of the correct aspect ratio when viewed from a position normal to the image.

MATLAB code for homography calculation

Perspective Correction of Distorted Projectors with an Uncalibrated Camera



There are no reviews yet.

Be the first to review “XCode for Real Time Perspective Correction of Projector Image”

Your email address will not be published. Required fields are marked *