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For 3 phase shifted sine waves using the projected pattern: I = sin(x + δi) where δ ∈ [-2pi/3, 0, +2pi/3] which is then projected onto a scene. The resulting image is captured with a camera. I am using the method mentioned below as Robust sine patterns: enter image description here

I have the following questions:

  1. From what I understand, phi (obtained using inverse tangent) provides reconstructed 3D position (correct me if I am wrong)? What is confusing for me is that phi is a single scalar value. How does it provide 3D position(s)? What am I missing?
  2. Ld (direct component) and Lg (global component) can help get different representations of the acquired scene?
  3. How can I get depth estimation using these 3 phase shifted sinusoids?
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  • $\begingroup$ Hi! Your question is missing some context: a reference to the original work you are trying to reproduce; the hardware setup assumed (several proyectors, or several cameras?); etc. Also, what have you tried and researched so far. $\endgroup$
    – Juancho
    Commented Feb 13, 2023 at 13:20

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