Pixelation is NOT Done in Videos Yet
This addresses privacy concerns for individuals in video data, but the approach is incremental as it builds on existing face blurring methods with trajectory clustering.
The paper tackles the problem of protecting individual privacy in streaming video by developing an algorithm that blurs faces to prevent reliable recognition, but notes the resulting limited utility. They conducted an online experiment with 47 participants to evaluate the effectiveness of face blurring compared to original photos, assessing user experience metrics such as satisfaction and enjoyment.
This paper introduces an algorithm to protect the privacy of individuals in streaming video data by blurring faces such that face cannot be reliably recognized. This thwarts any possible face recognition, but because all facial details are obscured, the result is of limited use. We propose a new clustering algorithm to create raw trajectories for detected faces. Associating faces across frames to form trajectories, it auto-generates cluster number and discovers new clusters through deep feature and position aggregated affinities. We introduce a Gaussian Process to refine the raw trajectories. We conducted an online experiment with 47 participants to evaluate the effectiveness of face blurring compared to the original photo (as-is), and users' experience (satisfaction, information sufficiency, enjoyment, social presence, and filter likeability)