| 摘要 |
The presently claimed invention relates generally to processing data representing video and audio. One claim recites a method including: obtaining video, the video comprising at least picture portions and audio portions associated with the video; performing a first act of analyzing data representing picture portions of the video or audio portions associated with the video to determine whether the data satisfies first predetermined criteria; and if the data satisfies the first predetermined criteria, performing a second act of analyzing data representing picture portions of the video or audio portions associated with the video to determine whether the data satisfies second predetermined criteria. The first act of analyzing or the second act of analyzing utilizes steganographic decoding. A related claim recites that the first act of analyzing or the second act of analyzing utilizes pattern matching. Another related claim recites that the first act of analyzing or the second act of analyzing derives information from the data representing picture portions of the video. Of course, other claims and combinations are provided as well.
|
