Proxy Models for Extended Chroma-Key Visual Effects
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Solution Overview
Problem
Current film and video production techniques face limitations in creating mixed-reality environments, particularly in extending visual effects beyond the boundaries of physical chroma-key screens without the need for extensive real-world markers or complex setup.
Innovation Solution
A system that generates enhanced images by using proxy models positioned and oriented within a world-coordinate system, allowing for the integration of virtual scenes with physical scenes, enabling the extension of visual effects beyond chroma-key screen boundaries through the use of proxy models that can be manipulated in real-time using a controller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If chroma-key screens are used to create visual effects, then scene transformation is enabled, but the effects are limited to the boundaries of the physical screens
Solution Approach 1:
The patent creates virtual copies of chroma-key screens as proxy models in a 3D environment. These proxy models are digital representations that can be positioned and oriented anywhere in the virtual scene, allowing visual effects to extend beyond the physical screen boundaries while maintaining the chroma-key effect
Solution Approach 2:
The patent transitions from 2D chroma-key screen boundaries to 3D virtual space by introducing proxy models with position and orientation properties in a three-dimensional environment. This allows visual effects to be applied in multiple dimensions and extend beyond the flat screen surface
2Area of stationary object
If extensive real-world markers are used to extend visual effects, then effects can go beyond screen boundaries, but the setup becomes complex
Solution Approach 1:
The patent extracts the essential function of markers (defining spatial boundaries for visual effects) and separates it from the physical marker objects. The proxy models serve as virtual markers that define effect boundaries without requiring physical placement in the scene, eliminating the complexity of extensive marker setup
Solution Approach 2:
The proxy models serve multiple functions: they define the boundaries of visual effects, provide positioning and orientation information, and act as reference objects for the virtual camera. This multi-functionality replaces the need for multiple separate physical markers
Data Source
AI summary
Systems, devices, and methods for generating proxy models obtain an image of a scene, generate a proxy model at an initial position and orientation in a world-coordinate system, and repositioning the proxy model to a second position or orientation in the world-coordinate system according to commands received from a controller.