Algorithm 2.
Implementation of Projection Operator Π𝒮(Z)
| 1: | for all i, j, k, ℓ do |
| 2: | x ← Zℓ(i, j, k) |
| 3: | if ||x||2 ≥ 1 then |
| 4: | x ← x/||x||2 |
| 5: | end if |
| 6: | Zℓ(i, j, k) ← x |
| 7: | end for |
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