Video Orientation Adaptation in Multimedia Servers
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Solution Overview
Problem
Current mobile broadband technologies face challenges in delivering high-quality multimedia services that adapt to device orientation, leading to suboptimal video content alignment and user experience across various devices and orientations.
Innovation Solution
The implementation of device capability exchange signaling, which includes orientation sensor information, allows servers to provide optimized multimedia content by selecting or transcoding content based on the device's orientation capabilities, ensuring correct video alignment and enhanced user experience across 2D and 3D video applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multimedia content is delivered without orientation adaptation, then delivery complexity is reduced, but video content alignment quality deteriorates
Solution Approach 1:
The patent applies preliminary action by embedding video orientation information in the multimedia content during content production or preprocessing. This allows the receiving device to proactively obtain orientation data before playback, enabling correct video alignment without requiring complex real-time adaptation mechanisms during content delivery.
Solution Approach 2:
The patent uses video orientation information as an intermediary element that mediates between the content source and the receiving device. This intermediary carries orientation metadata that enables the device to automatically adjust video display orientation without complex negotiation or adaptation protocols, thereby improving alignment quality while maintaining simple delivery mechanisms.
2Manufacturing precision
If device orientation capability exchange signaling is implemented, then multimedia adaptation quality is improved, but communication overhead increases
Solution Approach 1:
The patent extracts only the essential video orientation information from device capability exchange signaling and embeds it directly in the multimedia content. This extraction approach eliminates the need for extensive capability negotiation between device and server, reducing communication overhead while maintaining high multimedia adaptation quality through the embedded orientation data.
Solution Approach 2:
The patent copies video orientation information into the multimedia content structure (such as ISO-BMFF boxes or 3GPP file formats), creating a self-contained copy of orientation data within the content itself. This copying mechanism eliminates repeated communication overhead for capability exchange while ensuring accurate multimedia adaptation through the embedded copy of orientation information.
3Measurement precision
If video orientation information is embedded in content, then video alignment accuracy is improved, but content processing complexity increases
Solution Approach 1:
The patent applies local quality by embedding video orientation information at specific locations within the content structure (such as in ISO-BMFF initialization segments or 3GPP file headers). This localized embedding approach improves video alignment accuracy by providing precise orientation data where needed, while minimizing content processing complexity by concentrating orientation information in dedicated sections rather than throughout the entire content.
Solution Approach 2:
The patent uses preliminary action by pre-embedding video orientation information in the content during production or preprocessing stages. This preliminary embedding ensures high video alignment accuracy is achieved without requiring complex real-time processing at the receiving device, as the orientation data is already prepared and integrated in the content structure before delivery.
Data Source
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AI summary
Technology for multimedia adaptation based on video orientation is disclosed. In an example, a server can include computer circuitry configured to: receive a device capability from a client device, wherein the device capability includes video orientation capability; and perform video orientation-aware multimedia adaptation based on the device's video orientation capability.