STOPPED OBJECT DETECTION
First Claim
1. A video surveillance system comprising:
- an input configured to receive indications of images each comprising a plurality of pixels;
a memory; and
a processing unit communicatively coupled to the input and the memory and configured to;
analyze the indications of the images;
compare the present image with a short-term background image stored in the memory;
compare the present image with a long-term background image stored in the memory;
provide an indication in response to an object in the present image being disposed in a first location in the present image, in a second location in, or absent from, the short-term background image, and in a third location in, or absent from, the long-term background image, wherein the first location is different from both the second location and the third location.
3 Assignments
0 Petitions
Accused Products
Abstract
A video surveillance system includes: an input configured to receive indications of images each comprising a plurality of pixels; a memory; and a processing unit communicatively coupled to the input and the memory and configured to: analyze the indications of the images; compare the present image with a short-term background image stored in the memory; compare the present image with a long-term background image stored in the memory; provide an indication in response to an object in the present image being disposed in a first location in the present image, in a second location in, or absent from, the short-term background image, and in a third location in, or absent from, the long-term background image, where the first location is different from both the second location and the third location.
187 Citations
27 Claims
-
1. A video surveillance system comprising:
-
an input configured to receive indications of images each comprising a plurality of pixels; a memory; and a processing unit communicatively coupled to the input and the memory and configured to; analyze the indications of the images; compare the present image with a short-term background image stored in the memory; compare the present image with a long-term background image stored in the memory; provide an indication in response to an object in the present image being disposed in a first location in the present image, in a second location in, or absent from, the short-term background image, and in a third location in, or absent from, the long-term background image, wherein the first location is different from both the second location and the third location. - View Dependent Claims (2, 3, 4, 6, 7)
-
-
5. The system of 1 wherein the processing unit is configured to actuate an alarm in response to the indication only in response to the first location being different from each of the second location and the third location by at least a movement threshold.
-
8. A stopped object detection system comprising:
-
capturing means for capturing images of an area; background means, communicatively coupled to the capturing means, for storing a short-term background image and a long-term background image; motion detection means, communicatively coupled to the capturing means, for determining that an object is an in-motion object based on images captured by the capturing means; and stopped object detection means, communicatively coupled to the motion detection means and the background means, for determining that a previously-moving object has stopped by comparing current-image information with the short-term background image and the long-term background image. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
-
-
16. A method for detecting a stopped object, the method comprising:
-
capturing images of an area using a camera; producing a short-term background image and a long-term background image using the captured images; determining that an object is an in-motion object based the captured images; and producing a stopped-object indication in response to determining that a previously-moving object has stopped by comparing current-image information with the short-term background image and the long-term background image. - View Dependent Claims (17, 18, 19, 20, 21)
-
-
22. A computer program product residing on a non-transitory processor-readable medium and comprising instructions configured to cause a processor to:
-
produce a short-term background image and a long-term background image from images captured by a camera; determine that an object is an in-motion object based on the captured images; determine that a previously-moving object has stopped by comparing current-image information with the short-term background image and the long-term background image; and produce a stopped-object indication in response to determining that the previously-moving object has stopped. - View Dependent Claims (23, 24, 25, 26, 27)
-
Specification