Optical blending for multi-projector display wall systems

摘要

A multi-projector video wall system employs a blending frame to blend the overlapping portions of two adjacent images I1 and I2. The blending frame is preferably located a distance Dframe from the aperture of the projector and has an optimal half frame width Wf from the axis of the lens of the projector. A camera-based feedback loop can be employed to fine-tune the optical blending by digitally altering the image source.