Stereoscopic Image Storage Format Using ISO Base Media Containers
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Solution Overview
Problem
Conventional media file formats are inadequate for efficiently storing stereoscopic images, as they do not adequately account for the structural and temporal information required to represent and synchronize left and right images, making it difficult to configure a suitable file format for stereoscopic content that is also compatible with international standards like the ISO base media file format.
Innovation Solution
A data storage format is developed that includes specific information on the configuration of stereoscopic images, such as scene descriptor and object configuration details, and is compatible with the ISO base media file format, allowing for the storage of three-dimensional image data in a way that includes metadata for playback, using a structure that includes an ftyp header, moov container, and meta container to manage stereoscopic and monoscopic image data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a conventional media file format is used to store stereoscopic image data, then the file format maintains simplicity and compatibility with basic media storage, but it fails to efficiently store the structural and temporal information required for stereoscopic images
Solution Approach 1:
The file format is segmented into distinct containers (ftyp header, moov container, meta container, image data container) where each container stores specific types of information. This segmentation allows complex stereoscopic image data to be organized into manageable parts, preventing information loss while maintaining structured complexity.
Solution Approach 2:
The patent adds a new dimensional layer to the conventional media file format by introducing the meta container field that stores stereoscopic-specific metadata. This additional dimension allows the format to accommodate temporal and spatial relationships between left and right images without fundamentally altering the base ISO structure.
2Loss of information
If a custom file format is designed specifically for stereoscopic images to store all necessary configuration information, then complete information storage is achieved, but compatibility with international standards like ISO base media file format is lost
Solution Approach 1:
The patent creates a hybrid file format that serves multiple functions: it maintains compatibility with the ISO base media file format structure while simultaneously storing stereoscopic-specific information. The meta container acts as a universal interface that can hold both standard media metadata and stereoscopic configuration data.
Solution Approach 2:
The stereoscopic-specific metadata is nested within the existing ISO base media file format structure. The meta container is placed inside the overall file structure alongside other standard containers, allowing stereoscopic information to be embedded within the standardized format without breaking compatibility.
3Reliability
If left and right images are stored as separate media objects with full configuration information, then complete spatial and temporal relationships are preserved, but the data storage requirements and processing complexity increase
Solution Approach 1:
The patent merges the configuration information for left and right images into a unified scene descriptor that defines temporal and spatial relationships. Instead of duplicating configuration data for each image, a single scene descriptor container holds shared information that applies to both views, reducing redundancy while maintaining synchronization.
Data Source
AI summary
A method of storing 3D image data in a recording medium includes: loading, in a predetermined file type field, image type information indicating either one of a single stereoscopic image or a compound image including a monoscopic image and a stereoscopic image; loading, in a predetermined image configuration information container field, scene descriptor information indicating temporal and spatial relations between a plurality of media objects included in the three-dimensional image, object configuration information indicating attributes of each media object of said plurality of media objects and a configuration relation between encoded streams of the plurality of media objects, configuration information of the encoded streams; loading in an image data container field media data of an image to be stored; and loading, in a meta container field, metadata including information for playing the 3D image data.