Abstract: Methods and systems, including computer programs encoded on a computer storage medium, are disclosed for simultaneous playback of continuous video recordings from multiple recording devices. A system obtains respective video data generated by multiple recording devices. Each video data includes multiple image frames. For each recording device: based on a time value, the system identifies events captured in the video data generated by the recording device. Based on an input variable corresponding to the events, the system: i) identifies an event stream that coincides with occurrence of a particular event captured in the video data; ii) determines a control value for segmenting image frames of the event stream; and iii) based on the control value, generates a video segment in response to isolating image frames of the event stream coinciding with the particular event. A graphical interface is generated that concurrently outputs each video segment for each recording device.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for detecting an intrusion at a premises. One of the methods includes determining, by an intrusion detection system and using data captured by one or more sensors that are physically located at a premises, a predicted intruder physical location of a likely intruder at the premises; determining, by the intrusion detection system, a predicted non-intruder physical location of a person at the premises who is not the likely intruder; selecting, by the intrusion detection system and using the predicted intruder physical location and the predicted non-intruder physical location, one or more shared sensors from a plurality of sensors physically located at the premises, the plurality of sensors including the one or more sensors; and providing, by the intrusion detection system and to another system, data captured by the one or more shared sensors.

Abstract: Methods and systems, including computer programs encoded on a computer storage medium, are disclosed for simultaneous playback of continuous video recordings from multiple recording devices. A system obtains respective video data generated by multiple recording devices. Each video data includes multiple image frames. For each recording device: based on a time value, the system identifies events captured in the video data generated by the recording device. Based on an input variable corresponding to the events, the system: i) identifies an event stream that coincides with occurrence of a particular event captured in the video data; ii) determines a control value for segmenting image frames of the event stream; and iii) based on the control value, generates a video segment in response to isolating image frames of the event stream coinciding with the particular event. A graphical interface is generated that concurrently outputs each video segment for each recording device.