Virtual Background Display System Lens Data Adaptation
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Solution Overview
Problem
Existing background display systems for virtual image recording studios struggle to accurately replicate camera effects and lens-specific effects in images of virtual backgrounds, leading to deviations from the expected image of a real background.
Innovation Solution
A background display system that includes a control device capable of receiving lens data from an associated camera and adjusting the representation of the virtual background accordingly, thereby influencing the optical image produced by the camera to match the effects of a real background.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a three-dimensional virtual background is displayed on a two-dimensional plane, then the virtual background can be represented for recording, but depth-dependent characteristics of the lens are lost and the image deviates from a real background
Solution Approach 1:
The patent applies parameter changes by adjusting the representation of the virtual background based on lens data parameters such as focal length, aperture, and focus distance. The control device modifies the virtual background image parameters to match the optical characteristics of the camera lens, thereby reproducing depth-dependent effects like bokeh and depth of field that would normally be lost when displaying a 3D background on a 2D plane.
2Measurement precision
If lens data is received and the virtual background representation is adjusted, then camera effects and lens-specific effects are reproduced, but the system complexity increases
Solution Approach 1:
The patent introduces a control device as an intermediary between the camera and the background display device. This control device receives lens data from the camera and automatically adjusts the virtual background representation accordingly. By using this intermediary, the system achieves accurate reproduction of camera effects without requiring direct complex integration between the camera and display systems, thus managing system complexity through a dedicated control layer.
3Manufacturing precision
If the background display device is focused on the camera, then the representation is sharp, but depth-dependent blurring effects cannot be achieved
Solution Approach 1:
The patent applies dynamics by making the focus and sharpness of the virtual background representation dynamically adjustable based on lens data. Instead of maintaining a fixed sharp representation, the control device modifies the representation to include depth-dependent blurring effects that match the camera's optical characteristics. This allows the system to transition between sharp and blurred regions in the virtual background, accurately reproducing optical effects like bokeh.
Data Source
AI summary
A background display system for a virtual image recording studio comprises a background display device which is configured to display, behind or above a real subject, a representation of a virtual background for a recording by means of an associated camera, and a control device which is configured to control the background display device. The control device comprises a data input for receiving lens data from the associated camera and is configured to adjust the representation of the virtual background in dependence of the received lens data.