Stationary target detection by exploiting changes in background model

1. A computer-implemented method for processing one or more video frames, comprising:

obtaining, by a computer, one or more video frames;

generating, by the computer, one or more blobs using the one or more video frames;

classifying, by the computer, the one or more blobs to produce one or more classified blobs, wherein the one or more classified blobs include one or more of a stationary target, a moving target, a target insertion, a target removal, or a local change; and

constructing a list of detected targets based on the one or more classified blobs.

2. The method of claim 1 , further comprising:

determining, by the computer, one or more stationary targets based on a length of time of insertion for the one or more target insertions.

3. The method of claim 1 , further comprising:

adding a blob from the one or more blobs to the list of detected targets when the blob is not in the list of detected targets.

4. The method of claim 1 , further comprising:

classifying one or more blobs in the list of detected targets as one or more local changes; and

removing the one or more blobs classified as one or more local changes from the list of detected targets.

5. The method of claim 1 , further comprising:

reclassifying at least one of the one or more classified blobs.

6. The method of claim 5 , further comprising:

updating the list of detected targets in response to the reclassifying of at least one of the one or more classified blobs.

7. The method of claim 5 , wherein the reclassifying step further comprises changing the classification of the at least one of the one or more classified blobs from a target insertion to a stationary target.

8. The method of claim 1 , further comprising:

comparing the one or more blobs with the list of detected targets to detect one or more target matches; and

determining if the one or more blobs matches the one or more target matches based on the comparison to the list of detected targets.

9. The method of claim 8 , further comprising:

detecting one or more stationary targets based on one or more stationary thresholds.

10. The method of claim 8 , further comprising:

generating one or more alerts regarding the one or more determined stationary targets.

11. The method of claim 1 , further comprising:

confirming one or more stationary targets from the list of detected targets based on one or more stationary thresholds.

12. The method of claim 1 , further comprising:

generating one or more alerts in response to classifying the one or more blobs.

13. The method of claim 1 , further comprising:

generating, by the computer, a background model using the one or more video frames; and

generating, by the computer, a foreground model using the one or more video frames.

14. The method of claim 1 , further comprising:

generating, by the computer, more than one background model using the one or more video frames.

15. The method of claim 14 , further comprising:

generating, by the computer, a foreground model using the one or more video frames.

16. A system for processing one or more video frames, the system comprising:

a computer adapted to obtain one or more video frames, wherein the computer is adapted to:

generate one or more blobs using the one or more video frames;

classify the one or more blobs to produce one or more classified blobs, wherein the one or more classified blobs include one or more of a stationary target, a moving target, a target insertion, a target removal, or a local change; and

construct a list of detected targets based on the one or more classified blobs.

17. The system of claim 16 , further comprising:

a sensor connected to the computer.

18. The system of claim 16 , wherein the computer is further adapted to determine one or more stationary targets based on a length of time of insertion for the one or more target insertions.

19. A system for processing one or more video frames, the system comprising:

a computer adapted to obtain one or more video frames, wherein the computer is adapted to:

generate a first background model using the one or more video frames;

generate a second background model using the one or more video frames;

compare the first background model and the second background model to generate a comparison; and

generate one or more blobs in response to the comparison.