Figure 2: User occupancy Gaussian KDE heatmaps from each residence.
From: Residential wearable RSSI and accelerometer measurements with detailed location annotations
Derived from all unscripted living experiments in houses (a) A; (b) B floor 1; (c) B floor 2; (d) C floor 1; (e) C floor 2; (f) D floor 1; (g) D floor 2. The blue dots highlight the tag centre coordinate on the floor while the access points are illustrated using alphabetic characters. The annotated locations associated with each received wearable packet, pertaining to accelerometer measurements and an RSSI signature, are collated from each free-living experiment for a particular home. The annotated locations are then filtered to 0.4 m from the tag centre and a two dimensional Gaussian KDE is applied where the bandwidth is estimated using the Scott's rule21.
