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. Author manuscript; available in PMC: 2020 Apr 21.
Published in final edited form as: Proc ACM Interact Mob Wearable Ubiquitous Technol. 2019 Sep;3(3):72. doi: 10.1145/3351230

Fig. 7.

Fig. 7.

The main takeaways of this paper: (a) Activity-oriented obfuscation maintains visual confirmation utility for hand-related activities that involve an object in hand, even when extreme filters (e.g., blurH, edgeH, and mask) are applied to obfuscate the background. (b) Spatio-temporal obfuscation filters (e.g., mask) provide greater bystander privacy than spatial-only methods, in both high- and low-intensity activities (c) Bystander concerns can be significantly reduced using activity-oriented partial obfuscation. Low obfuscation intensity leads to higher variability in bystander concerns as concerns stem from the perceived interpretation of bystander activity (regardless of whether it is the correct activity or not). The error bars represent the standard deviation.