ATSC 3.0 Broadcast for Volumetric AR Data Delivery
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Solution Overview
Problem
Live AR content streaming over IP channels faces significant bandwidth and latency challenges, especially for mobile AR devices with data restrictions, as existing techniques struggle to efficiently deliver view-independent 3D data overlays.
Innovation Solution
The proposed solution leverages the ATSC 3.0 broadcast infrastructure to transmit temporarily encoded volumetric data, allowing for view-independent 3D data overlays by using existing digital TV channels, which enables efficient delivery of AR content by dividing the data into seed, full frame, and frame-to-frame phases, optimizing bandwidth usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If live AR content is streamed over IP channels to mobile devices, then AR content delivery is enabled, but bandwidth consumption increases and latency increases
Solution Approach 1:
The patent segments AR content into three distinct data types: seed data (initial 3D model), full frame data (complete volumetric updates), and frame-to-frame data (incremental updates). This segmentation allows receivers to efficiently process only the necessary data for their specific needs, reducing overall bandwidth consumption while enabling scalable AR content delivery to multiple devices simultaneously.
2Ease of operation
If live AR content is streamed over IP channels to mobile devices, then AR content delivery is enabled, but latency increases
Solution Approach 1:
The patent implements preliminary action by first transmitting seed data containing the initial 3D model structure before sending full frame or frame-to-frame updates. This allows receivers to prepare their rendering environments in advance and progressively build AR content as data arrives, significantly reducing perceived latency and enabling faster AR content delivery to mobile devices.
3Adaptability or versatility
If view-independent 3D data overlays are delivered to multiple users, then AR content accessibility is improved, but data transmission volume increases
Solution Approach 1:
The patent implements a dynamic data transmission strategy where the type of data sent (seed, full frame, or frame-to-frame) is adaptively determined based on receiver capabilities, current AR content state, and network conditions. This dynamic approach enables view-independent 3D data overlay delivery to multiple users with different device capabilities while optimizing data transmission volume by sending only necessary updates to each receiver.
4Manufacturing precision
If photorealistic 3D volumetric data is transmitted, then AR content quality is improved, but bandwidth requirements increase
Solution Approach 1:
The patent implements periodic action by transmitting photorealistic 3D volumetric data in structured phases: initial seed data transmission, followed by periodic full frame updates, and continuous frame-to-frame incremental updates. This periodic transmission approach maintains high AR content quality with photorealistic 3D volumetric data while managing bandwidth requirements through efficient data phase management and incremental updates rather than continuous high-bandwidth streaming.
Data Source
AI summary
Techniques are described for using the Advanced Television Systems Committee (ATSC) 3.0 television protocol to deliver volumetric information for presentation on various displays using ATSC over-the-air communications channels.