Real-time slide presentation multimedia data object and system and method of recording and browsing a multimedia data object

A system of creating a browsable multimedia data object comprising:

• means for recording a real-time slide presentation using an image capture device and audio signal capture device and generate a plurality of overlayed replayable bitstreams corresponding to the multimedia data object including at least a first bitstream corresponding to an image of each of a plurality of slides of the slide presentation, a second bitstream corresponding to a symbolic representation of a presenter's interactions with the slides, and a third bitstream corresponding to an audio signal of the real-time slide presentation;
• means for tracking location within one of the plurality of bitstreams while recording the multimedia data object;
• means for detecting a presenter interaction with a region of interest within a slide while capturing the multimedia data object, the detected presenter interaction having a corresponding symbolic interaction event within the symbolic interaction bitstream;
• and
• means for linking the symbolic interaction event with a corresponding tracked location occurring within the one bitstream at the time of the symbolic interaction event.

A system comprising:

• a computing system for generating an image signal corresponding to a plurality of slides;
• a display system for displaying the image signal corresponding to the slides within a display area;
• a capture device for capturing at least an image of a real-time slide presentation including an image of the plurality of slides and an image of a presenter interacting with each of the slides and for capturing presenter audio, to generate captured signals;
• means for creating a plurality of overlayed synchronously replayable bitstreams corresponding to the multimedia data object from the computer generated image signal, the captured signals, the plurality of bitstreams including at least a bitstream corresponding to the image of each of a plurality of slides of the slide presentation, a bitstream corresponding to a presenter's interactions with each of the slides, and a bitstream corresponding to a presenter's audio contribution;
• a counter for tracking location within at least one of the captured signals while being captured;
• a detector for detecting the occurrence of a presenter interaction during the real-time presentation, each interaction having a corresponding symbolic interaction event within the symbolic interaction bitstream;
• a lookup table for storing a first indicator representative of the symbolic interaction event corresponding to the detected presenter interaction within the interaction bitstream and a second indicator representative of a location within one of the plurality of bitstreams corresponding to a tracked location within one of the capture signals occurring at the time of the detected presenter interaction, the first and second indicators being linked such that, when the multimedia data object is replayed, selection of the symbolic interaction event within the image of one of the slides causes the audio bitstream to be played at the tracked location.

A method of creating a browsable multimedia data object having a plurality of overlayed replayable bitstreams including at least a bitstream corresponding to an image of each of a plurality of slides of the slide presentation, a bitstream corresponding to a presenter's symbolic interaction with points of interest within each slide, and a bitstream corresponding to a presenter's audio associated with each slide, the method comprising:

• tracking location within the audio bitstream;
• detecting a presenter interaction with a point of interest within a slide while capturing the multimedia data object said presenter interaction being represented as a symbolic interaction within the symbolic interaction bitstream;
• and
• linking the symbolic interaction with a corresponding tracked location within the audio stream occurring at the time of the presenter interaction.