Video Thumbnail Cancellation for Faster Menu Display
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Solution Overview
Problem
Existing video content reproduction apparatuses face delays in displaying menu screens due to the time required to decode image data for thumbnail generation, leading to reduced responsiveness when users attempt operations before the thumbnails are available.
Innovation Solution
An information processing apparatus and method that includes a video content specifying portion, an index element generating portion, and a canceling portion to manage the generation of index elements for video content, allowing for the cancellation of thumbnail generation when a new content is specified before the previous thumbnail is generated, thereby reducing processing load and improving responsiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If thumbnail generation is performed for all video contents before display, then the menu screen can show complete thumbnail information, but the display time is delayed due to decoding processing load
Solution Approach 1:
The patent extracts and stores thumbnail data from video contents in advance during recording or before menu display. This preliminary action allows the menu screen to be displayed immediately without waiting for real-time decoding, thus reducing display time while maintaining thumbnail quality
Solution Approach 2:
The system dynamically adjusts thumbnail generation based on user interaction. When the user scrolls or selects video contents, thumbnails are generated on-demand rather than all at once, optimizing the balance between completeness and display speed
2Reliability
If decoding processing is performed to generate thumbnails, then complete video content information is available for display, but the processing load increases and reduces system responsiveness
Solution Approach 1:
Thumbnail data is extracted and stored in advance during the recording process or before menu display. This preliminary extraction reduces the processing load during menu operations while maintaining accurate video content information for display
Solution Approach 2:
Instead of decoding and regenerating thumbnails on-demand, the system creates copies of thumbnail data in advance and stores them separately. This copying approach maintains information accuracy while significantly reducing processing load during user interactions
3Manufacturing precision
If the system waits for thumbnail generation before accepting user operations, then processing accuracy is maintained, but user operability is degraded
Solution Approach 1:
The system performs thumbnail extraction in advance and stores the results, allowing the menu screen to be displayed immediately with accurate thumbnail data. Users can interact with the interface without waiting for processing, while the pre-extracted data ensures accuracy
Solution Approach 2:
The patent introduces an intermediate storage layer that holds pre-extracted thumbnail data. This intermediary allows the system to separate the thumbnail generation process from the user interaction process, enabling immediate response to user operations while maintaining data accuracy through the pre-processed intermediate storage
Data Source
AI summary
An information processing apparatus that includes: a storing portion to store video data: and a display portion to display a first thumbnail generated by decoding the video data, wherein if a scroll instruction is received prior to completion of generation of the first thumbnail, the display portion displays a second thumbnail corresponding to the video data.