Virtual Video Rendering With Camera-Specific Color Simulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing virtual production systems using virtual backgrounds struggle with unnatural video appearance due to fixed background projections and time-consuming color tone adjustments, leading to inefficient video production.
Innovation Solution
An information processing apparatus that generates a virtual video using a 3D model and performs actual-imaging video conversion processing to simulate camera-specific luminance and color characteristics, allowing real-time background adjustments based on camera position and direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a background video is simply projected on a large display, then the setup is simple and quick, but the background does not change naturally with camera position and imaging direction, resulting in an unnatural video appearance
Solution Approach 1:
The background video is made dynamic by changing it according to camera position and imaging direction. The rendering unit generates different background videos based on real-time camera parameters, so the background naturally changes as the camera moves, creating a natural video appearance without requiring complex post-production adjustments
Solution Approach 2:
The system changes the background video parameters (content, angle, position) based on camera position and imaging direction parameters. By dynamically adjusting these parameters in real-time, the background video adapts to match the actual camera viewpoint, resolving the contradiction between simple setup and natural appearance
2Manufacturing precision
If color tone adjustments are performed in the studio during actual imaging, then accurate color reproduction is achieved, but the process becomes extremely troublesome and time-consuming
Solution Approach 1:
The system performs color tone adjustment in advance by generating a simulation video before actual imaging. The video processing unit creates a simulated captured video that predicts the final color tone, allowing color adjustments to be made beforehand rather than during or after actual imaging, saving time while maintaining accuracy
Solution Approach 2:
The system creates a simulation video that copies the characteristics of the actual captured video by applying camera-specific luminance and color characteristics to the virtual background. This copy allows color tone adjustments to be made on the simulation rather than requiring physical adjustments during actual imaging
3Manufacturing precision
If the background video is changed according to camera position and imaging direction, then a natural video appearance is achieved, but the system complexity increases
Solution Approach 1:
The rendering unit and video processing unit perform multiple functions: generating virtual background videos, applying camera characteristics, creating simulation videos, and predicting captured video appearance. By consolidating these functions into a unified system, the complexity is managed more effectively while achieving natural video appearance through multi-functional processing
Data Source
AI summary
There is provided an information processing apparatus to make it possible to confirm color tone and the like of a captured video at a time point before capturing a virtual video on a display by a camera. The information processing apparatus includes: a rendering unit (520a) that generates a virtual video by performing rendering using a 3D model used in an imaging system that captures, by a camera (502), a video on a display (505) that displays the virtual video obtained by the rendering using the 3D model; and a video processing unit (33) that performs, on the virtual video generated by the rendering unit, actual-imaging video conversion processing for generating a simulation video by using a processing parameter that achieves a characteristic of luminance or color at a time of imaging by the camera used in the imaging system.