Abstract
We evaluated density-adaptive filtering for crop-structure estimation under 25% point sparsity. A deterministic paired simulation generated 56 cases and preserved a low-signal stratum. Mean canopy detection rate changed from 0.500 to 0.552; the paired difference was +0.051 (95% interval +0.049 to +0.053). The result is limited to the stated simulation and is reported with a reproducible result artifact.
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