Automated Video Editing for Student Intervention Replacement

The patent segments the video editing process into distinct phases: detection phase (identifying intervention boundaries using keywords and audio/video analysis), extraction phase (isolating the intervention segments), and substitution phase (replacing with representative content). This segmentation allows automated processing to operate effectively within each phase while maintaining overall accuracy.

The patent introduces an intermediary representation layer between the original video and the edited output. Instead of directly removing interventions, the system first identifies them through keyword detection and audio analysis, creates representative substitutions (summaries or placeholder content), and then performs the replacement. This intermediary approach preserves measurement precision while enabling automated productivity improvement.

The patent implements self-service automation where the video content itself provides the signals needed for its own editing. Keyword detection in audio tracks and visual analysis of video frames enable the system to automatically identify intervention boundaries without external technician input. The representative substitution content is generated algorithmically from the original material, further reducing human involvement.

The patent changes key parameters of the video processing system: transitioning from manual frame-by-frame review to automated keyword-based temporal localization, and from direct deletion to representative substitution. These parameter changes reduce device complexity by replacing human operators with algorithmic processes while maintaining acceptable precision through multiple detection mechanisms.

The patent creates copies of intervention content in transformed form. Instead of completely removing student questions and teacher responses, the system generates representative substitutions that capture the essence of the removed content - such as summary text, key points, or condensed versions. These copies preserve the informational value while enabling smooth playback of the main lecture content.

The patent implements a discard-and-recover strategy where intervention segments are temporarily discarded from the continuous video flow but recovered in condensed form through representative substitutions. The original intervention content is identified and extracted, then replaced with recovered essential information that maintains the educational value while improving viewing efficiency.