Rendered Video Streaming With Virtual Object Insertion for Live Broadcast

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Solution Overview

Problem

Existing methods for generating live video streams are inflexible, costly, and require dedicated studio environments, making them unsuitable for various subjects and complex to set up.

Innovation Solution

A method that allows inserting virtual objects into real-world environment images using a processor to generate a rendered video stream, which can be done on conventional devices like smartphones or tablets, eliminating the need for a studio setup and enabling flexible, cost-effective live transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a dedicated studio environment is used for recording and post-processing video streams, then high-quality recordings and processing capability are achieved, but device complexity and setup cost increase significantly

Engineering Contradiction:
Improverecording qualityVSAvoidstudio setup complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent uses a camera to capture images of physical objects and creates digital representations (rendered images) of these objects. These digital copies can then be manipulated, positioned, and integrated into virtual environments without requiring physical studio equipment. The rendering system generates photorealistic images from captured data, replacing the need for complex physical studio setups while maintaining high visual quality.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent replaces mechanical studio equipment (lighting rigs, backdrops, physical sets) with computational rendering systems. Instead of using physical spotlights and studio backgrounds, the system uses software-based rendering to generate and manipulate images of objects, integrating them into virtual environments through digital composition rather than physical arrangement.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Manufacturing precision

If a studio environment with powerful equipment is used, then high-quality post-processing is achieved, but cost and setup time increase

Engineering Contradiction:
Improvepost-processing qualityVSAvoidsetup cost and time
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent creates a universal rendering system that can handle multiple post-processing tasks through software. The same rendering engine can generate images, manipulate lighting, change backgrounds, and composite objects into various environments without requiring different physical equipment for each task. This multi-functional software approach replaces multiple specialized studio equipment pieces, reducing both cost and setup time while maintaining processing quality.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If conventional background replacement methods are used with green screens, then background flexibility is achieved, but object integration realism may be compromised

Engineering Contradiction:
Improvebackground selection flexibilityVSAvoidobject-environment integration realism
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent applies local quality by rendering different aspects of the object and environment with appropriate levels of detail and realism. The rendering system selectively generates high-quality images for objects that need to be integrated into backgrounds, using captured image data to preserve authentic object appearance while allowing flexible background selection. This ensures realistic integration at object boundaries while maintaining background flexibility.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP4704422A1Method and device for generating a rendered video stream, in particular for live transmission
Publication Date: 2026.03.04 RED BULL GMBH
  • EP4704422A1 patent drawingFigure 1
  • EP4704422A1 patent drawingFigure 2
  • EP4704422A1 patent drawingFigure 3

AI summary

The present invention relates to a method for generating a rendered video stream, particularly for live transmission. The invention further relates to a device, in particular a processor, for generating a rendered video stream, and to a computer program product comprising instructions which, when executed by a data processing device, cause the device to perform the steps of the method according to the invention. The invention also relates to a computer-readable storage medium comprising instructions which, when executed by a computer, cause the computer to perform the steps of the method according to the invention, and to a system for generating a rendered video stream, comprising the device according to the invention.