Television – Basic receiver with additional function
Patent
1996-04-08
1999-02-09
Chin, Tommy P.
Television
Basic receiver with additional function
348558, 348559, H04N 544, H04N 546
Patent
active
058701516
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention concerns a method and an equipment for the automatic detection of undesired video scenes from a current television transmission, which is achieved by the evaluation of frames, in particular initial frames, of the undesired video scenes.
By many transmitting stations, the current transmissions are interrupted and promotional contributions are faded in. These promotional contributions represent a disturbing interruption for most of the viewers. Proposals are already known in order to suppress the disturbing promotional contributions. One of these proposals is to switch the sound off during the promotional contribution. The patent specification U.S. Pat. No. 3,870,956 shows a circuit which suppresses the sound of the promotional contribution for a predetermined time. For this purpose, an operating person (the viewer) must actuate the corresponding key of a remote control transmitter at the beginning of the promotion. When however only the sound is interrupted, the viewer has still to observe the promotional contributions.
An equipment with a mode which permits the observation of the promotional contribution to be circumvented by the actuation of the transmitting station selecting keys or of the pause key is known from the document EP 0 384 388 A1. Whilst the program of another transmitting station can be viewed, an information that a preset time span has run down is faded in on the picture screen of the television receiver so that the viewer can return to the original transmitting station.
It is a disadvantage of the aforementioned proposals that the viewer must always press a key at the beginning of the promotion in order to suppress the promotional contribution. It is furthermore disadvantageous that, due to the run-down of a fixedly preset time, the end of the respective promotional contribution can not be determined exactly.
These disadvantages are avoided in the description, which is described in the German Patent Specification DE 41 06 246 C1, by the beginning and end of a promotional contribution, after a single identification and storage of the frames characterising the beginning and the end of promotional blocks by an operating person, being recognised automatically by the equipment. Thus, the automatic suppression of promotional contributions is possible without losing desired program information.
After the transmitting institutions have often gone over to characterising only still the beginning of a promotional block by a special image, it is no longer possible by means of the known equipment to recognise the renewed beginning of the transmission interrupted by the promotional block. For that reason, the uninterrupted transmission is not automatically displayed again after termination of the promotional block.
It is evident from the preceding explanations that it is imperative for the fading-out, for example of a promotional transmission received as undesired transmission contribution, to be able to perform an unobjectionable identification of such a transmission contribution also when this is not marked by identification signals at the transmitter end.
The unobjectionable identification and its timely detection of so-called undesired video scenes is however necessary also for statistical investigation and for commercial reasons. When a promotional transmission order is given, it can be proved at a receiving location, for example by identification, that this promotional contribution is also radiated in its full length. For the detection of such picture signals, a method for the re-recognition of unique image signals, in particular of unique image sequences, is known from the DE 43 09 957 C1, according to which method luminance values of predetermined pixels and preferably predetermined groups of pixels (clusters) are scanned. In a further method step, a different signal between the luminance values of the predetermined clusters is formed and a mark function is derived from this. For each complete frame, a binary feature vector thus arises, the length of wh
REFERENCES:
patent: 4319286 (1982-03-01), Hanpachern
patent: 4390904 (1983-06-01), Johnston et al.
patent: 4750052 (1988-06-01), Poppy et al.
patent: 4918531 (1990-04-01), Johnson
patent: 5343251 (1994-08-01), Nafeh
patent: 5355161 (1994-10-01), Bird et al.
patent: 5436653 (1995-07-01), Ellis et al.
patent: 5668917 (1997-09-01), Lewine
Chin Tommy P.
Diep Nhon T
LandOfFree
Method and equipment for the detection of undesired video scenes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and equipment for the detection of undesired video scenes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and equipment for the detection of undesired video scenes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1954037