Projection Screen Background Lighting for Virtual Studio Filming

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing methods for filming in studios, such as green screen and high-resolution LCD monitors, are costly, time-consuming, and limit creative freedom, requiring separate production of light reflections and high-resolution background sequences.

Innovation Solution

A method and system using a projection screen and light sources to generate video data with a lower resolution background, allowing real-time simulation of light situations and background motifs, and enabling easy interchangeability and scalability of light sources, while avoiding post-production costs and artifacts like banding and moiré effects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If high-resolution LCD monitors are used for background playback, then visual quality is improved, but cost and device complexity increase significantly

Engineering Contradiction:

Improvevisual qualityVSAvoidcost and device complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent uses projection screens to display background sequences instead of high-resolution LCD monitors. The projection screen acts as a medium that can display high-resolution background images and video sequences at a fraction of the cost, while still providing sufficient visual quality for the filming process. This copying approach replaces expensive electronic displays with a simpler projection system.

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent employs projection screens and standard light sources that are significantly cheaper than high-resolution LCD monitors. While projection screens may have lower inherent resolution than LCDs, they provide adequate visual quality for filming purposes and can be easily replaced or adjusted without significant cost, making them a practical short-term solution for studio backgrounds.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Measurement precision

If physically recreating scenes in the studio is done, then visual realism is improved, but cost and setup time increase

Engineering Contradiction:

Improvevisual realismVSAvoidcost and setup time

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

Instead of physically building expensive sets and recreating entire scenes in the studio, the patent projects background sequences onto screens that serve as virtual environments. This copying of real-world scenes through projection allows actors to perform in front of realistic backgrounds without the need for costly physical construction and setup.

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent replaces the mechanical system of physically constructing sets with a projection-based system. Instead of building walls, floors, and backgrounds with physical materials, the system uses projected images and light sources to create the desired visual environment, significantly reducing setup time and cost while maintaining visual realism.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If green screen or blue screen methods are used, then flexibility in post-production is improved, but separate production of light reflections is required

Engineering Contradiction:

Improveflexibility in post-productionVSAvoidseparate production of light reflections

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the background display and lighting functions into a single integrated system. The projection screen displays background sequences while light sources positioned in front of the screen create realistic lighting effects and reflections on foreground objects simultaneously. This merging eliminates the need for separate green screen production and separate lighting setup, while still providing flexibility for post-production work.

Inventive Principle:

Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables cost-effective and flexible video production with real-time visual feedback, reducing setup time and eliminating the need for separate production of light reflections, and allowing seamless integration of foreground objects with virtual backgrounds.

Implementation Method 1

a plurality of light sources; transmitting the image signals to the light sources and irradiating the rear side of the projection screen by the light sources

Methodology Applied

Scientific EffectLight emission: Light

Data Source

PatentUS20260006150A1Method and system for processing video data

Publication Date: 2026.01.01 SUMOLIGHT

AI summary

A method for processing video data by a system, including a recording device configured to generate video data; a projection screen having a front side facing the recording device and a rear side facing away from the recording device, and a plurality of light sources is provided. The method includes: providing background data which indicate a video background with a first resolution, and determining image signals from the background data in such a way that the image signals indicate the video background with a second resolution that is lower than the first resolution; transmitting the image signals to the light sources and irradiating the rear side by the light sources; and recording first video data by the recording device, wherein the first video data indicate a video of the front side and of a foreground object arranged between the projection screen and the recording device. A system is also provided.