Privacy-aware smart video surveillance revisited

In this article, the video-surveillance system NEST is presented. The architecture is described in detail and the main benefits are highlighted. We especially address the integration of privacy-by-design principles by usage control capabilities. Due to the flexible architecture, the system can be adapted to special operation tasks. We will present here different modules and interfaces that have been developed for the scenario of searching a specific person that has left an object (e.g. suitcase). This may be due to the inattention of the person itself, but it could also be on purpose, e.g., when am explosive device is hidden inside. If such an abandoned object is detected, the task is to find the person as soon as possible. The NEST system is therefore expanded by a database including metadata, a timeline interaction, and a module that is able to search for similar persons as identified at the suspicious object.