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It's "assumed" only in the sense that the form of any occluded part of an image is "assumed". By that standard, "ACFD is a face/plane" isn't presented either, a
by SilasX 5y ago
It's "assumed" only in the sense that the form of any occluded part of an image is "assumed". By that standard, "ACFD is a face/plane" isn't presented either, and, relative to the image alone, is "assumed" in the same sense.
- Jtsummers 5y agoAgain, I'm not saying that this blog post presented the problem statement effectively. That is literally why I linked the original. So that we don't have to assume anything about what Huffman meant in his formulation because he stated his assumptions and definitions. I'm only saying that given Huffman's formulation it is an impossible pyramid. All the other possible "solutions" are not solutions to how this can be a pyramid, instead they are solutions to how it can be something else. Which is covered in Huffman's paper, which you apparently cannot be bothered to read. To summarize: If this were a real image of a real object, then it is, by definition, a possible object, but it is not, per the image, a possible pyramid. The camera would have to be shifted (or lighting altered or something changed) in order to discern what it actually was (which could be a pyramid if some distortion were discovered, but could also be any of a number of other possible objects, including, as one person suggested, the corner of a room through a peculiarly shaped viewport).