Best Peppers Ghost effect methodology

Joined
Oct 22, 2019
Location
Las Vegas, NV
So I am attempting to create the most vivid, realistic, clear Pepper's Ghost effect. For my application, I want the image of a projected person to appear as a real brightly illuminated person standing in front of viewers . I believe the following factors are helpful including keep the set as dark as possible. Secondly attempting to have the reflective surface on which the image is to be projected to fill the field of view of spectators so that the edges of the reflective surface are not seen and any differences in transparency of the surface and the areas around the surface are not detected. Having a bright projector I assume will increase the vividness of the image. I am wondering if placing some transparent projection film
on the reflective surface would help or hurt the effect. The film will likely add some haziness to the reflective surface, but at the same time should greatly increase the vividness and color of the image. Here is a link to of the projection film I am thinking about and the attached photo shows an image projected onto this film:

https://www.aliexpress.com/item/32814155481.html?spm=a2g0o.productlist.0.0.30b67e4f4Mf2JZ&algo_pvid=1cac4dfc-d81d-4893-86e7-018fd398d3ea&algo_expid=1cac4dfc-d81d-4893-86e7-018fd398d3ea-2&btsid=f020ecd9-c3ca-4683-9d74-b4224e87cc32&ws_ab_test=searchweb0_0,searchweb201602_6,searchweb201603_55

Screen Shot 2019-11-29 at 1.39.38 PM.png

The film will likely add some haziness to the reflective surface, but at the same time should greatly increase the vividness and color of the image. Any advice, or experience out there? Thanks!!
 
Joined
Oct 22, 2019
Location
Las Vegas, NV
So I am going to try the following rig using a polycarbonate flat sheet big enough to completely cover the entrance to the room, with the clear rear projection film applied to the sheet on the Inside-side of the sheet, and using an ultra-short throw projector that will be placed on a stand off to one side of the sheet and out of view of spectators as shown in the attached crude diagram. I definitely believe this will work, although I am not sure of the best film to use. There are various colors of projection film that can be used from the clear film to virtually black film. According to the manufacturer of the film shown above, the dark gray film provided the best quality/color image, but the clear film will give more of a holographic effect if things of the interior of the room are visible.

The advantage of this rig over the Pepper's Ghost approach is that in the Peppers Ghost effect you are projecting onto an approximate 45 degree angle and thus will get some image distortion. Further the longer throw distance using a conventional projector makes projector placement more difficult. Since the polycarbonate rig shown can be used for either the Ultra short throw projector, or the Peppers Ghost illusion using a standard projector, I can actually test both approaches and see which works best.

Holographicprojectionrig.jpg
 
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