Touchscreen Video Editing Playhead Hover Preview
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Solution Overview
Problem
Changing the layout of display areas on a touchscreen device for video editing is difficult due to the large size of a user's fingertip compared to the areas being manipulated, leading to inaccurate object movement and error-prone navigation through media compositions.
Innovation Solution
A computing device is configured to display a video frame corresponding to a moveable playhead along a timeline, allowing users to initiate a hover user input to preview different video frames and adjust the layout of user-adjustable display areas using single touch inputs, enabling precise layout changes and frame previews.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fingertip touch input is used to move objects on touchscreen display, then the interface is easy to operate, but the positioning accuracy deteriorates because fingertip is much larger than the area to be touched
Solution Approach 1:
The patent introduces a playhead indicator as an intermediary between the user's touch input and the media composition timeline. Instead of directly touching small areas on the timeline, users interact with the larger playhead indicator which then precisely positions the playback position, solving the accuracy problem while maintaining ease of touch operation
Solution Approach 2:
The patent creates visual representations (thumbnails) of video frames that users can interact with. These thumbnails serve as copies or representations of the actual media content, allowing users to select and navigate through media by touching larger visual elements rather than small timeline positions, thereby improving positioning accuracy
2Ease of operation
If traditional touch input methods are used to navigate through media composition, then the interface remains simple, but navigation becomes error-prone and impractical
Solution Approach 1:
The patent implements visual feedback mechanisms where the playhead indicator visually responds to user interactions, showing the current playback position and allowing users to see the effect of their selections before finalizing navigation. This feedback loop reduces navigation errors by providing immediate visual confirmation of the intended action
Solution Approach 2:
The system allows users to preview video frames by hovering over or selecting thumbnails before actually navigating to those positions in the media composition. This preliminary action enables users to verify their navigation choice before committing to it, reducing errors in media composition navigation
3Quantity of substance
If display areas are made smaller to fit more content on screen, then the information density increases, but the ease of touch interaction deteriorates due to smaller target areas
Solution Approach 1:
The patent utilizes the vertical dimension by displaying thumbnails in a vertical arrangement or overlay, allowing multiple video frame representations to be displayed without reducing the horizontal space needed for touch interactions. This dimensional approach increases content density while preserving touch target size
Data Source
AI summary
In one or more embodiments, a computing device is configured to display a first frame, of a media composition, corresponding to a first position of a moveable playhead along a timeline. The first frame is displayed in a first display area of a GUI, while the timeline is concurrently displayed in a second display area of the GUI. The computing device also detects an initiation of a hover user input associated with a second position along the timeline. Responsive to detecting the initiation of the hover user input, the computing device replaces, in the first display area of the GUI, the display of the first frame with a display of the second frame of the media composition. Thereafter, responsive to detecting termination of the hover user input, the computing device resumes a display of the first frame of the media composition in the first display area of the GUI.