Advertisement detection
View Patent ↗A method and system for detection of video segments in compressed digital video streams is presented. The compressed digital video stream is examine to determine synchronization points, and the compressed video signal is analyzed following detection of the synchronization points to create video fingerprints that are subsequently compared against a library of stored fingerprints.
1. A computer based method for automatically detecting a known video segment from a set of known video segments comprising:
receiving a video stream;
creating statistical parameterized representations for windows of the video stream;
comparing the statistical parameterized representations with a database containing a set of fingerprints of the set of known video segments, wherein the set of fingerprints comprise statistical parameterized representations of the set of known video segments;
recognizing the known video segment when the comparing of the statistical parameterized representations with the database containing the set of fingerprints of the set of known video segments produces a threshold level of similarity;
generating a transmittable signal indicating the known video segment has appeared in the video stream.
2. The computer based method of claim 1 wherein the transmittable signal is transmitted over a network.
3. The computer based method of claim 1 wherein the database containing the set of fingerprints of the set of known video segments is periodically updated.
4. The computer based method of claim 1 wherein the database containing the set of fingerprints of the set of known video segments is automatically updated.
5. The computer based method of claim 1 wherein the transmittable signal contains at least one indicator from a set of channel ID, video segment start time, and video segment duration.
6. The method of claim 1 wherein the recognizing takes place within a few seconds.
7. The method of claim 1 wherein the recognizing takes place in real time.
8. The method of claim 1 wherein the known video segments are advertisements.
9. A computer program product comprising a computer usable, nontransitory medium having a computer readable program code embodied therein, the computer readable program code adapted to be executed to implement a method of detecting a known video segment from a set of known video segments, the method comprising:
receiving a video stream;
creating statistical parameterized representations for windows of the video stream;
comparing the statistical parameterized representations with a database containing a set of fingerprints of the known video segments, wherein the set of fingerprints comprise statistical parameterized representations of the known video segments;
recognizing the known video segment when the comparing of the statistical parameterized representations with the database containing the set of fingerprints of the known video segments produces a threshold level of similarity;
generating a transmittable signal indicating the known video segment has appeared in the video stream.
10. The computer program product of claim 9 wherein the transmittable signal is transmitted over a network.
11. The computer program product of claim 9 wherein the database containing the set of fingerprints of the known video segments is periodically updated.
12. The computer program product of claim 9 wherein the database containing the set of fingerprints of the known video segments is automatically updated.
13. The computer program product of claim 9 wherein the transmittable signal contains at least one indicator from a set of channel ID, video segment start time, and video segment duration.
14. The computer program product of claim 9 wherein the recognizing takes place within a few seconds.
15. The computer program product of claim 9 wherein the recognizing takes place in real time.
16. The computer program product of claim 9 wherein the known video segments are advertisements.