Image monitoring system and image monitoring program

• US 10,346,686 B2
• Filed: 10/03/2018
• Issued: 07/09/2019
• Est. Priority Date: 03/06/2006
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Demizu, Masaki, Murakami, Miki
• Primary Examiner(s): Bayat, Ali
• Application Number:
  US16/150,334
• Publication Number:
  US 20190034724A1
• Time in Patent Office: 279 Days
• CPC Class Codes: G06T 7/246 using feature-based methods, e.g. the tracking of corners or segments
• CPC Class Codes: G06T 7/285 using a sequence of stereo image pairs
• CPC Class Codes: G06V 20/52 Surveillance or monitoring of activities, e.g. for recognising suspicious objects recognising microscopic objects G06V20/69
• CPC Class Codes: G08B 13/19671 Addition of non-video data, i.e. metadata, to video stream
• CPC Class Codes: G08B 13/19682 Graphic User Interface [GUI] presenting system data to the user, e.g. information on a screen helping a user interacting with an alarm system
• CPC Class Codes: G08B 13/19693 using multiple video sources viewed on a single or compound screen
• CPC Class Codes: H04N 7/0117 involving conversion of the spatial resolution of the incoming video signal for graphics images G09G2340/0407
• CPC Class Codes: H04N 7/18 Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
• CPC Class Codes: H04N 7/181 for receiving images from a plurality of remote sources

Abstract

An image monitoring system includes a recorder that records an image captured by a camera via a network. The system is controlled to display the present image captured by the camera or a past image recorded on the recorder. A moving object is detected from the image captured by the camera, the detector including a resolution converter for generating an image with a resolution lower than the resolution of the image captured by the camera. A moving object is detected from the image generated by the resolution converter and positional information on the detected moving object is output. The positional information of the detected moving object is merged with the image captured by the camera on the basis of the positional information.

Claims

1. An image signal processing system comprising:

a low resolution image generating section configured to generate a second image based on a first image containing an object captured by a camera device, the first image having a first resolution and the second image having a second resolution lower than the first resolution;

an object detection section configured to detect the object in the second image having the second resolution;

a position information generating section configured process the second image to generate position information representing a position of the object in the second image; and

an alarm output section configured to generate an alarm output state based on the position information.

2. An image signal processing system according to claim 1, further comprising a position information converting section configured to convert the position information of the object in the second image to position information of the object in a third image having a resolution larger than the second resolution.

3. An image signal processing system according to claim 2, wherein the third image is output with the position information of the object in the third image.

4. An image signal processing system according to claim 3, wherein the third image includes a mark indicating the position of the object in the third image for display.

5. An image signal processing system according to claim 1, further comprising one or more camera devices configured to capture the first image.

6. An image signal processing system according to claim 5, further comprising a position information converting section configured to convert the position information of the object in the second image to position information of the object in a third image having a resolution larger than the second resolution.

7. An image signal processing system according to claim 6, wherein the third image is output with the position information of the object in the third image.

8. An image signal processing system according to claim 7, wherein the third image includes a mark indicating the position of the object in the third image for display.

9. An image signal processing method comprising:

generating a second image based on a first image containing an object captured by a camera device, the first image having a first resolution and the second image having a second resolution lower than the first resolution;

detecting the object in the second image having the second resolution;

processing the second image to generate position information representing a position of the object in the second image; and

generating an alarm output state based on the position information.

10. An image signal processing method according to claim 9, further comprising converting the position information of the object in the second image to position information of the object in a third image having a resolution larger than the second resolution.

11. An image signal processing method according to claim 10, wherein the third image is output with the position information of the object in the third image.

12. An image signal processing method according to claim 11, wherein the third image includes a mark indicating the position of the object in the third image for display.

13. An image signal processing method according to claim 9, further comprising capturing the first image by one or more camera devices.

14. An image signal processing method according to claim 13, further comprising converting the position information of the object in the second image to position information of the object in a third image having a resolution larger than the second resolution.

15. An image signal processing method according to claim 14, wherein the third image is output with the position information of the object in the third image.

16. An image signal processing method according to claim 15, wherein the third image includes a mark indicating the position of the object in the third image for display.

17. An image signal processing system comprising:

circuitry configured to;

generate a second image based on a first image containing an object captured by a camera device, the first image having a first resolution and the second image having a second resolution lower than the first resolution;

detect the object in the second image having the second resolution;

process the second image to generate position information representing a position of the object in the second image; and

generate an alarm output state based on the position information.

18. An image signal processing system according to claim 17, wherein the circuitry is further configured to convert the position information of the object in the second image to position information of the object in a third image having a resolution larger than the second resolution.

19. An image signal processing system according to claim 18, wherein the third image is output with the position information of the object in the third image.

20. An image signal processing system according to claim 19, wherein the third image includes a mark indicating the position of the object in the third image for display.

21. An image signal processing system according to claim 17, further comprising one or more camera devices configured to capture the first image.

22. An image signal processing system according to claim 21, wherein the circuitry is further configured to convert the position information of the object in the second image to position information of the object in a third image having a resolution larger than the second resolution.

23. An image signal processing system according to claim 22, wherein the third image is output with the position information of the object in the third image.

24. An image signal processing system according to claim 23, wherein the third image includes a mark indicating the position of the object in the third image for display.