Abstract
We propose a practical method that realizes radiometric compensation based on direct and indirect light transports so that uncalibrated projector-camera systems can create desired image displays on 3D objects. By introducing compressed sensing, we efficiently construct the light transport matrix that includes direct/indirect light transports reflected from unknown 3D objects. Assuming that each camera pixel receives a linear summation of direct and indirect reflection lights via the color-mixing matrices, which are reformed by reference to the light transports, our proposed method adaptively compensates the color brightness output from the projector by controlling a feedback system. We demonstrate compensation trials that use reformed color-mixing matrices and confirm that our proposed method offers excellent projection-based displays on 3D objects.
