Motion Video Frame Selection via List Segmentation
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Solution Overview
Problem
Conventional methods for selecting frames from motion video files are inefficient, particularly on devices with simple input and output capabilities like mobile phones and PDAs, as they require complex playback control to access the time dimension, making it difficult to extract specific frames for tasks such as printing.
Innovation Solution
A method and apparatus for displaying a motion video file in a list, allowing users to select frames through responsive playback commands, enabling the display of selected frames within the list without interrupting the normal video viewing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional playback control methods are used to select frames from motion video files, then the frame selection capability is achieved, but the operation complexity increases and ease of operation deteriorates
Solution Approach 1:
The patent segments the motion video file into multiple individual frame representations that can be displayed and selected independently in a list view. Each frame is treated as a separate selectable item, allowing users to choose specific frames without complex playback control. This segmentation transforms the continuous video stream into discrete, easily selectable units.
Solution Approach 2:
The patent adds a temporal dimension representation by displaying frame numbers, timestamps, or progress indicators alongside each frame in the list. This allows users to navigate and select frames based on time position without needing to control playback, effectively converting temporal navigation into a spatial selection task in the list interface.
2Measurement precision
If playback control is slowed down to select exact frames, then frame selection precision is improved, but the video viewing process is interrupted and productivity decreases
Solution Approach 1:
The patent performs preliminary extraction and organization of frames from the motion video file before the user selection process. All frames are pre-loaded and displayed in the list with their temporal information, so when the user selects a frame, it is immediately available without needing to pause or slow down playback. This preliminary preparation eliminates the trade-off between precision and productivity.
Solution Approach 2:
The patent creates a copy or representation of each frame in the list interface, allowing users to select from these representations without affecting the original video playback. The selected frame can be copied or extracted separately, enabling precise frame selection while maintaining continuous video viewing capability.
3Adaptability or versatility
If motion video files are displayed as single items in a list, then the file management is simplified, but the time dimension is not represented and frame accessibility deteriorates
Solution Approach 1:
The patent segments the single motion video file item into multiple individual frame representations in the list. Each segment (frame) retains information about its position in the original video, creating a hierarchical structure where the video file is both a single manageable item and a collection of accessible frames with temporal context.
Solution Approach 2:
The patent implements a nested structure where frame-level representations are contained within the context of the parent motion video file. The list displays frames as nested elements that inherit video file information while providing granular access to individual frames, maintaining both the overall file structure and detailed frame accessibility.
Data Source
AI summary
A method of selecting a frame (e.g., 301-306) from a motion video file is disclosed. A first representation of the motion video file is displayed in a list. The first representation is responsive to one or more playback commands. The frame of the motion video file is selected in response to a command received in relation to the first representation. A second representation of the motion video file is displayed in the list in response to the selection. The second representation displays the selected frame.