Sound & Video Contractor: Projection mapping applications typically take place either outdoors at night, or in very dim environments. This is because any ambient light washes out the projection, an issue that researchers have tackled with the addition of an illumination device that combines an LED panel with a lens array.
2 comments:
This technology seems really interesting, but is definitely early in the research phase. I think that the idea of using a camera to evaluate what the scene looks like, and adjusting the image to match is really interesting. I also found the use of aperiodic lenses really interesting, because I had never see them before. It is interesting to see the algorithm used to figure out how to place the lenses in a way that gives even levels of illumination over the whole projection surface.
While this worked very well for projection mapping onto a small surface in a lab, I don’t understand how this is going to expand to projection map on the scale of buildings or production, which it seems like is the goal. Currently, the projection panel itself is the same size as the projection surface, which is not at all practical at a larger scale. I also have questions about how the lenses will respond to varying throw distances, because I believe that the aperiodic lensing is specifically calibrated for this projection distance.
This is an interesting idea. If I’m understanding correctly, the thought process is that by casting MORE light on the rest of the environment, it will become easier for projection mapping to specific objects to take place. It’s not explicitly stated but it seems like the idea is specifically that this is projection mapping done by a computer algorithm, and that the point is to make it easier for computer vision to see the object and map to it. I’m a little confused about how you would have the technology to have the specialised lens array which can track the object to avoid reflecting light on it but still need to solve the problem of tracking the object to projection map onto it? Also I’m not really sure how effective this method would be in larger scale outdoors environments (such as those that they are ostensibly trying to solve problems for) since the lens array is not going to be as effective out there.
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