Noise insertion

Given a scene GG, the random vector W=(wi)1≤i≤nW=(wi​)1≤i≤n​ is embedded into GG by

  1. wrapping each atomic wiwi​ by a graphical object: let denote it ωiωi​, then we obtain a vector of objects Ω=(ωi)1≤i≤nΩ=(ωi​)1≤i≤n​.

  2. inserting ΩΩ into GG so that every ωiωi​ contributes to the rendered image, namely they distort this image. The distortion is kept to be lower than the human perception of light.

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