Projection Screen Backlighting for Low-Cost Studio Scenes
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Solution Overview
Problem
Physically recreating studio scenes for film production is expensive, time-consuming, and limits creative freedom, while high-resolution background playback methods incur high costs and require complex post-production processes.
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 surroundings and simplifying post-production by integrating light reflections and enabling scalable, interchangeable lighting setups.
Engineering Contradictions & Design Principles
Engineering 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
Solution Approach 1:
The patent uses projection screens to display background sequences instead of expensive high-resolution LCD monitors. The projection screen serves as a cost-effective copy or alternative to the expensive display technology, achieving similar visual feedback functionality during filming without the high procurement and installation costs associated with LCD monitor walls.
2Measurement precision
If physically recreating studio scenes is done, then visual realism is improved, but production time and cost increase
Solution Approach 1:
The patent replaces physical mechanical set construction with a digital projection system. Instead of building physical backgrounds and sets, the invention uses projection screens to display digital background sequences, eliminating the time-consuming and expensive process of physically recreating scenes while maintaining visual realism.
3Adaptability or versatility
If green screen or blue screen methods are used, then post-production flexibility is improved, but additional post-production work and cost are required
Solution Approach 1:
The patent performs preliminary action by projecting the final background sequence onto the screen during the filming process itself, rather than requiring separate green screen compositing in post-production. This allows actors to perform in front of the actual background in real-time, eliminating the need for complex chroma keying and compositing work later, while still providing post-production flexibility to change backgrounds.
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 data generation with reduced post-production efforts, avoiding banding and moiré effects, and allowing rapid setup with scalable lighting options.
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
Data Source
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.