Video Thumbnail Generation via User Frame Selection
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Solution Overview
Problem
Current methods for generating video thumbnails fail to effectively present key video content, as they typically rely on the first frame of a video, which may not represent the video's essential information.
Innovation Solution
An electronic device method that allows users to select a specific video frame to generate a thumbnail, either through preview images or knuckle operations on a touchscreen, ensuring the thumbnail represents the user's chosen frame and thus the key content of the video.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the first frame of video data is extracted and decoded to generate a video thumbnail, then the generation process is simple and fast, but the thumbnail cannot present key video content
Solution Approach 1:
The system performs preliminary actions by extracting and displaying preview images of multiple video frames before the user makes a selection. This allows the user to preview different frames and select the one that best represents the key content, rather than being forced to use the first frame automatically.
Solution Approach 2:
The system enables self-service by allowing the user to independently select which video frame should be used as the thumbnail. The user can browse through preview images and choose the frame that best represents the video content, giving them control over the thumbnail generation process.
2Ease of operation
If automatic thumbnail generation is performed without user selection, then the operation is fast and simple, but the user cannot customize the thumbnail to meet specific requirements
Solution Approach 1:
The system provides a dynamic thumbnail generation process where the user can interact with preview images and select different frames based on their needs. The process adapts to user preferences while maintaining ease of operation through an intuitive interface that displays preview images for selection.
3Loss of information
If multiple video frames are displayed for user selection, then the user can choose the frame that presents key content, but the device complexity and operation time increase
Solution Approach 1:
The system segments the video content into multiple discrete frames that can be individually previewed and selected. By dividing the video into frame-level units, the system enables precise selection of key content moments without requiring complex analysis algorithms, maintaining relative simplicity while improving content representation.
Data Source
AI summary
Embodiments of the present invention provide a method for generating a video thumbnail on an electronic device and an electronic device. The method includes: receiving a play instruction from a user and displaying a played video on a screen of the electronic device; displaying, below the played video, a preview image corresponding to each video frame of the video; and after receiving a preview image selected by the user, generating a video thumbnail based on a video frame corresponding to the preview image. The embodiments of the present invention are applicable to the field of multimedia technologies.