Real-Time 3D Projection for Camera Viewpoint Display
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Solution Overview
Problem
Existing methods for displaying three-dimensional content on video camera screens are laborious, time-consuming, and unsuitable for live broadcasts, limiting the ability of actors to adapt their performance and requiring costly post-production processes.
Innovation Solution
A system that generates three-dimensional projection images in real-time based on video camera position and orientation data, allowing interactive display screens within the camera's field of view to show three-dimensional content items from the camera's viewpoint, enabling efficient and live display of complex graphics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If visual effects and post-production methods are used to display three-dimensional content on screens, then the impression of three-dimensional content can be achieved, but the process becomes laborious, time-consuming and expensive
Solution Approach 1:
The system performs preliminary action by pre-calculating and preparing three-dimensional projection images based on possible camera positions and orientations. The projection images are generated in advance using the known camera parameters and three-dimensional content data, so that when recording occurs, the appropriate projection image is already ready for immediate display on the screen, eliminating the need for time-consuming post-production visual effects work.
Solution Approach 2:
The system creates a copy of the three-dimensional content in the form of pre-generated projection images that match the camera's viewpoint. Instead of creating three-dimensional effects through complex post-production processing, the system generates accurate two-dimensional projection copies of the three-dimensional content that can be displayed directly on screens within the camera field of view, achieving the same visual effect much more efficiently.
2Manufacturing precision
If post-production methods are used to add three-dimensional content, then three-dimensional content can be displayed on screens, but actors cannot adapt their performance as they cannot see the final three-dimensional content during filming
Solution Approach 1:
The system enables actors to see the three-dimensional content in advance by displaying pre-generated projection images on screens within the camera field of view during the recording process. This preliminary display of the exact content that will appear in the final video allows actors to understand their interaction requirements and adapt their performance accordingly, eliminating the uncertainty associated with post-production methods.
Solution Approach 2:
The system introduces an intermediary display mechanism (screens showing pre-generated projection images) that mediates between the three-dimensional content data and the actors. These screens act as a visual intermediary, allowing actors to see and interact with the representation of the three-dimensional content in real-time during filming, without requiring complex post-production processing.
3Manufacturing precision
If visual effects and post-production methods are used, then three-dimensional content can be displayed on screens, but these methods are unsuitable for live broadcasts
Solution Approach 1:
The system enables live broadcast capability by performing preliminary calculation and generation of projection images before the live broadcast occurs. Since the projection images are generated based on known camera parameters and three-dimensional content data, they can be prepared in advance or in real-time with minimal delay, making the system suitable for live broadcasts where post-production processing would be impossible.
Solution Approach 2:
The system replaces the mechanical post-production processing system with a computational real-time generation system. Instead of using traditional visual effects methods that require recording first and processing later (a sequential mechanical process), the system uses computer-based projection image generation that can operate in real-time, substituting the post-production workflow with a real-time computational workflow suitable for live broadcasts.
4Manufacturing precision
If green screen methods are used, then three-dimensional content can be created, but user interaction is simplified less and light casting is not provided
Solution Approach 1:
The system introduces screens displaying pre-generated projection images as an intermediary between the three-dimensional content and the user. This intermediary provides the user with visual feedback about the three-dimensional content's position and appearance in real-time, making interaction easier compared to green screen methods where users must guess the locations of content items. The screens act as a visual guide that simplifies the interaction process.
Solution Approach 2:
The system uses the display screens to show the three-dimensional content in its actual projected form with proper lighting and color representation. Unlike green screen methods that require color keying and compositing, this system directly displays the final projected image with correct colors and lighting information, providing users with accurate visual feedback for interaction while automatically handling the light casting effects.
Data Source
AI summary
The present disclosure relates to a system for generating visual content, the system comprising: a video camera; an interactive display screen configured to display visual content, wherein the interactive display screen is within a field of view of the video camera; and one or more processors configured to: receive video camera position and/or orientation data indicative of a viewpoint of the video camera; and generate, for display on the interactive display screen, a three-dimensional projection image based on the video camera position and/or orientation data, such that the three-dimensional projection image shows a three-dimensional content item from the viewpoint of the video camera.