Abstract: Automatic annotation of recorded lectures includes the annotation of recorded presentations as presented on a computer screen during a presentation. Such annotation is accomplished with metadata that indicates the original slide and the time in the presentation that the slide was presented. Registration of the presentation tags the presentation with this metadata, which uniquely identifies the presentation and each slide. The metadata enables future searching of the recorded presentation for the annotation, such that segments of recorded presentations in which the slide was presented can be recalled. The searching function can also be used in an integrated system with other applications to enable recall of segments of relevant recorded presentations.

Abstract: Automatic annotation of recorded lectures includes the annotation of recorded presentations as presented on a computer screen during a presentation. Such annotation is accomplished with metadata that indicates the original slide and the time in the presentation that the slide was presented. Registration of the presentation tags the presentation with this metadata, which uniquely identifies the presentation and each slide. The metadata enables future searching of the recorded presentation for the annotation, such that segments of recorded presentations in which the slide was presented can be recalled. The searching function can also be used in an integrated system with other applications to enable recall of segments of relevant recorded presentations.

Abstract: Text that appears in sessions presented on a computer screen is indexed to enable future text-based search of the session content. During the recording, a text capture algorithm is used to capture any text data presented on any window on the computer screen, either in a selective or in an all-encompassing manner. Data captured are indexed to the capture time because a timestamp must be known to allow for a search that can provide temporal relevance. The interval used to capture the window data is modifiable, based on the needs of the application. Once the window is scanned, a comparison is done with the results of previous captures to determine if there is a need to update the metadata database with new results.