SURVEILLANCE METHOD UTILIZING VIDEO COMPRESSION FOR WIRELESS TRANSMISSION

• US 20120307070A1
• Filed: 07/26/2011
• Published: 12/06/2012
• Est. Priority Date: 06/02/2011
• Status: Abandoned Application

• Current Assignee: L-3 Communications Corporation (L3Harris Technologies, Inc.)
• Original Assignee: L-3 Communications Corporation (L3Harris Technologies, Inc.)
• Inventors: PIERCE, James
• Application Number:
  US13/190,905
• Publication Number:
  US 20120307070A1
• Time in Patent Office: Days
• US Class Current: 348/159
• CPC Class Codes: H04N 23/50 Constructional details
• CPC Class Codes: H04N 23/51 Housings
• CPC Class Codes: H04N 23/661 Transmitting camera control signals through networks, e.g. control via the Internet
• CPC Class Codes: H04N 23/698 for achieving an enlarged field of view, e.g. panoramic image capture
• CPC Class Codes: H04N 23/90 Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums

Abstract

A digital surveillance method in which the output signal of a camera is highly compressed, to the extent that the compressed signal can be sent over relatively low bandwidth wireless networks, such as cellular networks. The compressed signal is then uploaded to the wireless network from where it can be relayed to a server, such as an internet server, from where it can be accessed, viewed, manipulated and further used by authorized personnel. Such authorized personnel need not be proximate to the surveillance equipment at all. The digital surveillance system can include fixed cameras mounted in fixed orientations and the signals of the various fixed cameras can be integrated into a wide view, as well as used as individual narrow views. These views are wirelessly communicated to an internet server from where they can be accessed, viewed, manipulated and further used by authorized personnel. To power the cameras and the wireless communication device, one or more solar panels are mounted on or applied to the fixed camera mount. By providing a user with access over a computer network to the surveillance video, the user can monitor a location without owning, operating, or maintaining a surveillance server of its own.

Claims

1. A wireless digital surveillance method for monitoring remote locations, the surveillance method comprising:

capturing digital surveillance video with a camera assembly, the camera assembly outputting a video output,

collecting the video output of the camera assembly and compressing the video output with a video processor into a low-bandwidth video signal suitable for transmission over low bandwidth wireless networks;

wirelessly communicating the low-bandwidth video signal from the video processor over a low bandwidth wireless network and ultimately to a server; and

providing access to the server by a user so the user can view the video signal.

2. The digital video surveillance method of claim 1, wherein the camera assembly comprises a plurality of fixed digital cameras fixedly mounted to a camera mount, with individual ones of the fixed digital cameras pointing in different directions from one another, and wherein the video processor collects the outputs of the plurality of fixed digital cameras and integrates the outputs of the plurality of fixed digital cameras into an integrated low-bandwidth video signal having a wide view and multiple narrow views.

3. The digital surveillance method of claim 2, wherein the wide view is created by digitally stitching together multiple narrow views.

5. The digital video surveillance method of claim 1, wherein video processor'"'"'s low-bandwidth video signal has a bandwidth of about 6 kbps or more.

6. The digital surveillance method of claim 1, further comprising the step of enhancing the resolution, contrast, or low-light sensitivity of the video.

7. The digital surveillance method of claim 6, wherein the step of enhancing the video is accomplished between the camera and the wireless communication device.

8. The digital surveillance method of claim 1, wherein the low bandwidth wireless network is a cellular wireless network.

9. The digital surveillance method of claim 1, wherein the wireless communication is carried out with a wireless modem housed within the camera mount.

10. The digital surveillance method of claim 1, wherein the wireless communication is carried out with a Bluetooth communication device housed within the camera mount.

11. The digital surveillance method of claim 1, wherein the wireless communication is carried out with a Wi-Fi transmitter housed within the camera mount.

12. The digital surveillance method of claim 2, wherein the camera assembly comprises at least three cameras peering in different directions.

13. The digital surveillance method of claim 2, wherein the camera assembly comprises at least five cameras peering in different directions.

14. The digital surveillance method of claim 1, further comprising operating the camera assembly to peer in a fixed direction and controlling the camera assembly to zoom in and out on demand.

15. The digital surveillance method of claim 1, wherein the server is an internet-based server and the user accesses the server via the internet.

16. The digital surveillance method of claim 1, wherein the step of processing the video comprises monitoring available bandwidth over the low-bandwidth wireless network and adjusting the bandwidth of the low-bandwidth video signal so as to not exceed the available bandwidth over the low-bandwidth wireless network.

17. The digital surveillance method of claim 1, further comprising the step of monitoring the output for certain activities and sending an alarm signal in response to detecting the activity or activities.

18. The digital surveillance method of claim 1, further comprising the step of monitoring the output for certain activities and sending an alarm signal to one or more users/locations in response to detecting the activity or activities, the step of monitoring the output for certain activities is carried out at the server.

4. The digital surveillance method of 2, wherein the wide view and/or the narrow views can be digitally zoomed and panned.

19. A digital surveillance method for temporarily or portably monitoring a location, the method comprising:

placing a fixed camera mount at the location to be monitored, the fixed camera mount comprising an enclosure housing a camera assembly including a plurality of fixed digital cameras fixedly mounted to the fixed camera mount, with individual ones of the fixed digital cameras pointing in different directions from one another;

collecting the outputs of the plurality of fixed digital cameras and integrating the outputs of the plurality of fixed digital cameras into an integrated, compressed video signal having a wide view and multiple narrow views, and outputting the integrated video signal, wherein the compressed video is compressed to such an extent that the integrated, compressed video signal can be transmitted wirelessly over wireless networks;

communicating the integrated, compressed video signal wirelessly; and

supplying electric power from a battery to the camera assembly, the video processor, and the wireless communication device;

whereupon the surveillance can be temporarily or portably deployed to locations not having electric service handy, the camera can be positioned as desired, and operated to send surveillance video signals wirelessly to a remote user monitoring the area under surveillance.