Embodiments for utilizing vehicles to investigate events are provided. Spatiotemporal information is received from each of a plurality of vehicles. Each of the plurality of vehicles includes an onboard sensor. Information associated with an event is received. At least some of the plurality of vehicles are selected based on the information associated with the event and the spatiotemporal information from each of a plurality of vehicles. A request is caused to be transmitted to each of the selected at least some of the plurality of vehicles for data detected by the respective onboard sensor.

Methods and systems provided. A system may include a mobile surveillance unit positioned within an environment and including one or more sensors configured to detect one or more events occurring within or near the environment. The system may also include an application program configured to: convey data related to a detected event of the one or more events to an electronic device remote from the mobile surveillance unit; and in response to input associated with the detected event, convey, from the mobile surveillance unit, image data, video data, audio data, or any combination thereof, previously captured at the mobile surveillance unit and associated with the detected event.

A method includes obtaining from an image sensor of a video camera a primary real-time video stream comprising images of a field of view of the video camera; identifying from the primary video stream one or more regions of interest in the field of view of the video camera; while obtaining the primary video stream, creating a first video sub-stream comprising a first plurality of images for a first one of the one or more identified regions of interest, wherein: images of the first plurality of images include image data for portions of the field of the video camera that include the first identified region of interest, and the images of the first plurality of images have fields of view that are smaller than the field of view of the video camera; and providing the first video sub-stream for display at a client device.

The disclosure relates to systems and methods for automating offender documentation with facial or other recognition technique. A method can include generating, by cameras situated about a correctional facility, pixel data including first pixels corresponding to a face of a first offender in the correctional facility and an environment around the first offender corresponding to a location within the field of view of the camera, and providing, to a server, the pixel data from the cameras through a network connection, and receiving, from the server, an alert that, based on facial recognition and location detection analysis performed on the pixel data by the server, indicates a monitoring rule associated with the first offender is violated, an offender identification associated with the first offender, a location of the first offender in the correctional facility, and an indication of the monitoring rule violated.

A computer-implemented method includes: determining, based on a video of a target area, a first number of target objects in the video at each of multiple time points, and a first location of each of the first number of target objects at the corresponding time points; receiving position signals of the corresponding target objects in the target area at each of the multiple time points; determining, based on the position signals, a second number of target objects at each of the multiple time points and a second location of each of the second number of target objects at the corresponding time points; determining that, at each of the multiple time points, the first number equals the second number; determining that, at each of the multiple time points, the first location of each target object matches the second location of the target object; and determining that the video is unmodified.

Embodiments of the present disclosure provide a method and apparatus for video surveillance. The method comprises: receiving a video data transmission request from a mobile device; registering the mobile device as a temporary surveillance device of the video surveillance system in response to the video data transmission request; establishing a wireless connection with the mobile device, receiving video data from the mobile device via the wireless connection; and processing and storing the video data. The methods or apparatuses of the present disclosure enables a mobile device to temporarily join in a video monitoring system as needed so as to supplement and reinforce the existing video monitoring systems, e.g., enhancing the coverage and/or precision of the video surveillance systems.

An apparatus including an interface and a processor. The interface may be configured to receive pixel data generated by a capture device. The processor may be configured to generate video frames in response to the pixel data, perform computer vision operations on the video frames to detect objects, perform a classification of the objects detected based on characteristics of the objects, determine whether the classification of the objects corresponds to a user-defined event and a user-defined identity and generate encoded video frames from the video frames. The encoded video frames may comprise a first sample of the video frames selected at a first rate when the user-defined event is not detected and a second sample of the video frames selected at a second rate while the user-defined event is detected. The video frames comprising the user-defined identity without a second person may be excluded from the encoded video frames.

In an embodiment, a method includes receiving a live media stream. The method also includes causing the live media stream to be progressively written to a recording device as an unprioritized background recording as the live media stream is received. The method also includes receiving an indication of an event start and, responsive to the indication of the event start, causing a change in recording such that the live media stream is progressively written to the recording device as a prioritized event recording. The method also includes receiving, via a user interface associated with the recording device, a user command to add pre-event-start media to the prioritized event recording. The method also includes, responsive to the user command, selecting a user-triggered segment of the unprioritized background recording for addition to the prioritized event recording. The method also includes adding the user-triggered segment to the prioritized event recording.

A surveillance terminal apparatus includes a storage unit, a communication unit, a picture identifier, a reader, a facial recognition processor, a display unit, and a playback controller. The picture identifier identifies, as an entry picture and an exit picture, a part of the picture of a target person shot by an imaging device and stored in the storage unit. The facial recognition processor identifies both of the entry picture and the exit picture of the same target person, by performing facial recognition with respect to the entry picture and the exit picture read out by the reader. The playback controller changes playback times of the pictures corresponding to actual length of the pictures to the same playback time, when a difference between the playback times of the respective pictures exceeds a threshold, and causes the display unit to simultaneously play back both of the pictures side by side.

Some embodiments provide for receiving image data representative of a field of view of a camera of an audio/video (A/V) recording and communication device during a period time and sensor data generated by a sensor or a hub device at a time. A time-based association between the A/V recording and communication device and the sensor may be determined. Based at least in part on the time and the period of time, it may be determined that the time is within the period of time and that the time being within the period of time satisfies the time-based association. The image data and the sensor data may be correlated to create updated data, and the updated data may be included within a generated message. The message may then be transmitted to a client device associated with the A/V recording and communication device.