MP4 Container Link Information for Still Image Access
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Solution Overview
Problem
Camcorders cannot effectively reproduce still images embedded within moving image files using the MP4 format, as existing methods prevent general-purpose players from accessing and displaying only the still image data within a combined file.
Innovation Solution
An image storage apparatus and method that records link information of a contents file within a moving image file, allowing the storage and reproduction of moving image files alongside linked contents files, such as still images or text, using the MP4 standard, enabling simultaneous display and independent reproduction of linked content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If still images are embedded within moving image files using MP4 format, then storage efficiency is improved, but accessibility and reproduction capability deteriorates
Solution Approach 1:
The patent segments the embedded still image data from the moving image file by creating a separate contents file with link information stored within the MP4 container. This allows the still image to be accessed independently while maintaining space efficiency, resolving the contradiction between storage efficiency and accessibility.
Solution Approach 2:
The patent introduces link information as an intermediary element that connects the moving image file and the contents file. This intermediary structure enables general-purpose players to access and reproduce still images embedded within MP4 files without requiring special playback capabilities, thus improving accessibility while maintaining storage efficiency.
2Device complexity
If still images are embedded within moving image files, then file organization is simplified, but independent reproduction capability deteriorates
Solution Approach 1:
The patent segments the still image into a separate contents file while maintaining a simplified organizational structure through link information references within the MP4 file. This segmentation enables independent reproduction of still images while keeping file organization simple, resolving the contradiction between simplicity and independence.
Solution Approach 2:
The patent creates a universal structure where the same MP4 container can hold both moving image data and references to contents files. This multi-functional design allows the file to serve both as a video container and as an organizer for embedded still images, enabling independent reproduction without complicating file organization.
Data Source
AI summary
An image storage apparatus, an image reproducing apparatus, a method of storing an image, a method of reproducing an image, a storage medium and a photographing apparatus are provided. The image storage apparatus records link information of a contents file within a moving image file and stores the linked moving image file. Accordingly, a user can select the moving image file to be displayed together with the linked contents file on one screen when the user reproduces the moving image file.