Nowadays the camera has developed into an indispensable and ubiquitous part of our life. It ensures the safety of people and their belongings, keeps records of special moments, or logs daily life. However, the ever-increasing amount of cameras surrounding us raised privacy concerns among people, who find themselves easily captured by a camera without themselves acknowledging it. To make matters worse, cameras, especially those on smart phones, are now more pervasive than ever before and can hardly be regulated as the recorders have full control of their cameras. Motivated by the privacy challenges originated from the ever-increasing and wide-spreading cameras, this paper presents the Real-time, Secure, and Privacy-aware Video Redaction System (ReSPonSe), which aims at protecting private information in personal videos according to permissions of people-in-video for other viewers to view them in the video. This system innovatively separates the production of videos into two stages: Encapsulation and Decapsulation. The first stage produces neutral videos in real-time while the second stage provides privacy-aware video to the viewer revealing private content of people-in-video who grants access rights to that viewer. The evaluation demonstrates the capability of this system to protect private information in videos with high efficiency and accuracy.
