Telepresence Presentation Annotation via Snapshot Buffering
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Solution Overview
Problem
Current telepresence and video conferencing systems lack efficient real-time annotation capabilities, where annotations are not seamlessly integrated into existing presentation streams, and remote participants often experience delays in viewing annotations as they are made.
Innovation Solution
A processing system with a triple-buffer architecture that captures and encodes real-time video presentations, allowing for immediate annotation and feedback, with annotation data scaled for different display formats, enabling real-time transmission and display of annotations across various endpoints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If annotations are added to video presentations in real-time, then interactivity and collaboration are improved, but system complexity and processing overhead increase
Solution Approach 1:
The system segments the video stream processing by creating separate buffer queues for different video frames and annotation layers. Each buffer handles specific aspects of video data independently, allowing parallel processing of video encoding and annotation overlay operations, thus reducing system complexity while maintaining real-time interactivity.
Solution Approach 2:
The patent introduces intermediary buffer components that mediate between the video encoding process and annotation rendering. These buffers act as intermediate storage layers that decouple the video stream processing from annotation processing, enabling independent optimization of each function without increasing overall system complexity.
2Productivity
If real-time annotation feedback is transmitted to remote participants, then collaboration effectiveness is improved, but network bandwidth consumption and transmission delays increase
Solution Approach 1:
The buffer system is designed to serve multiple functions: storing video frames, queueing annotation data, managing transmission priorities, and handling different resolution requirements. This multi-functional buffer architecture reduces the need for separate dedicated systems for each function, improving collaboration effectiveness without proportionally increasing system complexity or transmission delays.
3Speed
If multiple buffer copies are maintained for annotation processing, then real-time feedback capability is improved, but memory usage and processing overhead increase
Solution Approach 1:
The buffer management system dynamically adjusts the number and size of buffer copies based on real-time processing needs, annotation activity levels, and available system resources. Rather than maintaining fixed multiple copies, the system creates buffer instances dynamically when needed and releases them when not required, achieving real-time feedback capability while optimizing memory usage.
Data Source
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AI summary
A processing system can include an encoder to encode a real-time transmission of a presentation. A memory buffer can copy and store images of the presentation and convert the images into snapshot images. A transmitter can transmit the snapshot images to an external annotation device, and a receiver can receive annotation data of an annotation performed on the snapshot images at the external annotation device. The annotation can be encoded, in accordance with the annotation data, into the real-time transmission of the presentation to display the real-time transmission with the annotation.