Dual Video Navigation Bars for Frame-Level Scene Browsing
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Solution Overview
Problem
Current video navigation methods, such as progress bars, allow only coarse scrolling and lack the ability to refine searches, failing to provide granular frame-by-frame navigation or further focus on specific frames.
Innovation Solution
A second navigation bar is introduced, offering granular frame-by-frame navigation by covering a shorter time interval than the first navigation bar, allowing users to navigate accurately to a desired frame and perform functions like editing or annotating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a progress bar is used for video navigation, then users can easily fast-forward or rewind to reach desired play positions, but the navigation is limited to coarse level scrolling and cannot provide granular frame-by-frame navigation
Solution Approach 1:
The patent divides the navigation bar into multiple segments with different levels of granularity. The first navigation bar provides coarse-level navigation with predetermined jump points, while the second navigation bar provides fine-level navigation with frame-level precision. This segmentation allows users to switch between different navigation granularities based on their needs, resolving the contradiction between ease of operation and measurement precision.
Solution Approach 2:
The patent introduces a second dimension of navigation by adding another navigation bar that operates at a different granularity level. Instead of improving the existing single-dimensional progress bar, the system adds a new dimension (fine-level navigation) that complements the coarse-level navigation, enabling users to achieve both ease of operation and high precision when needed.
2Adaptability or versatility
If a single progress bar is used for video navigation, then the interface remains simple, but the system cannot provide both coarse scrolling and refined frame-level navigation
Solution Approach 1:
The patent implements dynamic navigation bar generation where the second navigation bar is created only when needed (when the user interacts with the first navigation bar or when frame-level precision is required). This dynamic approach allows the system to provide versatile navigation functionality while keeping the interface simple during normal usage, reducing perceived complexity without sacrificing adaptability.
Solution Approach 2:
The patent embeds the second navigation bar (fine-level navigation) within or alongside the first navigation bar (coarse-level navigation), creating a nested structure where the finer-grained navigation is contained within the coarser framework. This nesting allows both navigation levels to coexist without significantly increasing overall interface complexity, as the fine-level bar is integrated into the existing coarse-level structure.
3Ease of operation
If predetermined jump points are used for progress bar navigation, then the interface remains simple and easy to understand, but frame-level navigation and search refinement are not possible
Solution Approach 1:
The patent introduces a second navigation bar as an intermediary mechanism that bridges the gap between coarse-level jump points and fine-level frame navigation. This intermediary navigation bar allows users to access frame-level detail without changing the simplicity of the original interface, as the fine-level navigation is added as a complementary layer that operates independently but works together with the coarse-level navigation.
Data Source
AI summary
Systems and method for displaying two navigation bars to navigate a video asset, where the first navigation bar provides navigation to a predetermined point and the second navigation bar allows a frame-by-frame navigation are described. The methods determine the time span, coverage of scene and chapters, and display formats of the second navigation bar. The time span of the second navigation bar may be configured to include frames of a desired scene or chapter such that the initial frame and the last frame of the scene are included for frame-by-frame navigation. The time span may also cover scene or chapter that are non-consecutive to the current play position such that multiple non-consecutive chapters can be navigated within the same second navigation bar. Functionality that includes annotating, editing, transmitting, on a per frame level is provided through the second navigation bar.