Video Stream Compatibility Signaling for Stereoscopic 3D
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Solution Overview
Problem
Existing systems face challenges in compatible communication and rendering of stereoscopic three-dimensional video data across different devices, as they may not be able to identify whether received video data includes frame-packed stereoscopic 3D information, leading to inefficient resource usage and potential degradation in visual quality.
Innovation Solution
Incorporating compatibility information within the video data, such as through frame packing arrangement service extension information (SEI) messages, to indicate the presence of frame-packed stereoscopic 3D data, allowing devices to determine compatibility at the sequence or bit-stream layer, thereby optimizing resource allocation and decoding processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If compatibility information is not included in video data, then devices cannot identify stereoscopic 3D content, but including compatibility information increases data structure complexity
Solution Approach 1:
The video data structure is segmented into multiple layers: base layer (standard video data) and extension layer (SEI messages containing compatibility information). This segmentation allows receiving devices to process only the necessary layer based on their capabilities, avoiding the need to parse complex unified structures while ensuring 3D content identification is available when needed.
Solution Approach 2:
SEI (Service Extension Information) messages act as an intermediary mechanism between the video content and the receiving device. These messages carry compatibility information without requiring changes to the core video coding standards, enabling graceful extension of functionality while maintaining compatibility with existing devices.
2Use of energy by moving object
If devices process all video data without compatibility checks, then resource usage increases, but skipping processing may degrade visual quality
Solution Approach 1:
Compatibility information is embedded in SEI messages that are processed before main video decoding. This preliminary action allows devices to determine in advance whether the video contains stereoscopic 3D content, enabling them to allocate appropriate processing resources and select the correct decoding path before actual video processing begins.
Solution Approach 2:
The processing system dynamically adapts its behavior based on the compatibility information received. Devices can switch between different processing modes (2D decoding, 3D decoding, or rejection) based on their capabilities and the content type indicated in SEI messages, optimizing resource usage while ensuring proper quality for supported formats.
3Adaptability or versatility
If devices support multiple video formats, then versatility increases, but compatibility determination becomes more difficult
Solution Approach 1:
SEI messages provide a universal mechanism that works across different video coding standards and device types. The same SEI message structure can convey compatibility information for various video formats (2D, stereoscopic 3D, other formats), allowing a single processing approach to handle multiple formats without increasing determination complexity.
Data Source
AI summary
Information for a video stream indicating whether the video stream includes stereoscopic three-dimensional video data can be provided to a display device. This information allows the device to determine whether to accept the video data and to properly decode and display the video data. This information can be made available for video data regardless of the codec used to encode the video. Systems, devices, and methods for transmission and reception of compatible video communications including stereoscopic three-dimensional picture information are described.