What projector types and technologies can be optically blended? When blended with high-performance optical blend masks, a seamless image is then achieved for all scene content. In doing so, when a dark scene is being projected that includes the unwanted leakage light “offset” from each projector, all of this light is being attenuated, so there will be no unwanted addition of leakage light in the overlap regions. Optical blending operates on the entire projected light flux by attenuating the optical transmission in a controlled way within the overlapping blend regions between projected images. What are the benefits of Optical Blending and why do we need it? Optical Blending uses physical masking techniques to provide managed fading of multiple partially-overlapped projected images so that their images are blended together to form a larger, continuous, image. Edge blending is an essential function when forming immersive projected environments for a wide range of applications. If the relative intensity of each channel image is faded out in a controlled fashion within the overlap regions, then it is possible to result in a seamless join between projected images to form a continuous larger field of view. In the context of multi-projector display systems, edge blending is possible when the projected channels are arranged to have overlapping regions on the display surface, within which regions the projected content is identical from each contributing projector.

Edge blending software for projectors