Caption-Based Video Navigation for Context-Rich Segment Jumping
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Solution Overview
Problem
Existing video navigation interfaces are difficult to use, particularly for longer videos, as they lack intuitive methods for jumping to specific points and often require manual fast forwarding, consuming bandwidth and screen space, especially on small devices.
Innovation Solution
A user interface that enables navigation through video based on displayed text, allowing multiple lines of captions to be overlaid simultaneously, with directional inputs to adjust play position, and the ability to select and search for terms to preload relevant video segments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a progress bar with slider is used for video navigation, then the user can jump to specific points, but the interface becomes difficult to use for longer videos and lacks intuitive navigation methods
Solution Approach 1:
The patent segments the navigation interface by introducing chapter markers that divide the video into logical sections. Users can select chapters rather than navigating through continuous time, making the interface simpler and more intuitive for long videos. Each chapter represents a segment of content, allowing users to jump between meaningful sections rather than dealing with a continuous progress bar.
Solution Approach 2:
The patent adds a hierarchical dimension to navigation by introducing chapters as a higher-level organization structure. Instead of only having temporal navigation (progress bar), users now have both chapter-based navigation and time-based navigation, creating a two-dimensional navigation space that improves ease of operation for long videos.
2Ease of operation
If captions are displayed in a separate window, then captions are readable, but valuable screen space is consumed especially on small devices
Solution Approach 1:
The patent merges the caption display with the video playback interface by overlaying captions directly on the video player. This integration eliminates the need for separate caption windows, preserving screen space while maintaining caption readability. The captions are displayed in an overlay layer that combines with the video visual elements.
Solution Approach 2:
The patent moves captions from a separate spatial dimension (separate window) to the same spatial dimension as the video (overlay layer). By using a layered display architecture, captions are positioned in front of the video content without requiring additional window space, thus optimizing screen real estate on small devices.
3Ease of operation
If manual fast forwarding is used to find specific video segments, then the user can locate desired content, but a lot of bandwidth is consumed loading irrelevant parts
Solution Approach 1:
The patent implements preliminary indexing of video content by extracting and storing keyframes, chapters, and caption information before actual playback. This pre-processing creates a navigation database that allows users to jump directly to desired segments without manually fast-forwarding through the entire video, significantly reducing bandwidth consumption during navigation.
Solution Approach 2:
The patent introduces an intermediary navigation system consisting of chapters and keyframes that mediates between the user's navigation requests and the actual video data. Instead of loading continuous video data during manual fast-forwarding, the system uses these intermediary markers to enable direct jumping to specific segments, reducing unnecessary bandwidth consumption.
4Loss of information
If multiple lines of captions are displayed simultaneously, then context is improved, but the interface complexity increases
Solution Approach 1:
The patent segments the caption display into multiple lines that correspond to different time segments of the video. By organizing captions into discrete, time-based lines rather than a continuous stream, the system provides better contextual information while maintaining manageable interface complexity. Each line represents a specific moment or segment, making it easier to navigate and understand.
Solution Approach 2:
The patent implements feedback mechanisms where selecting or highlighting a specific caption line provides contextual information about that segment, and the video playback responds by jumping to or pausing at the corresponding time. This interactive feedback loop enhances context while managing complexity through user-initiated navigation rather than requiring complex automatic processing.
Data Source
AI summary
Systems and methods for navigating a video via interaction with text overlaid on the video are described. In one example, a method includes generating for display a video, and generating for display at least one line of text overlaid over the video. Then, in response to receiving a directional user interface input for at least a portion of the at least one line of text, the method includes modifying a play position of the video based on a direction of the directional user interface input for the at least a portion of the at least one line of text.