3D Lighting Control Using Device Orientation and Spatial Sampling
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Solution Overview
Problem
Existing methods for controlling lighting in media content playback environments lack the ability to enhance immersion by dynamically adapting lighting effects based on the position and orientation of lighting devices within a 3D environment.
Innovation Solution
A method and apparatus that determine the position and orientation of lighting devices within a 3D environment, cast rays in a 2D or 3D virtual scene to intersect spatial samples, and control the lighting devices based on associated color information to render dynamic lighting effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If lighting devices are controlled based on simple color data without considering position and orientation in 3D environment, then the control system remains simple, but the user immersion and lighting realism are insufficient
Solution Approach 1:
The system performs preliminary actions by pre-determining the position and orientation of each lighting device in the 3D environment before controlling their operation. This advance preparation of spatial data enables the lighting devices to be controlled according to their specific locations and orientations, improving lighting realism without requiring complex real-time calculations during operation
Solution Approach 2:
The patent transitions from traditional 2D lighting control to 3D spatial lighting control by incorporating depth information and spatial coordinates. This dimensional expansion allows lighting devices to be positioned and oriented in three-dimensional space, creating more realistic and immersive lighting effects that match the spatial layout of the virtual environment
2Measurement precision
If lighting devices are controlled without considering their orientation, then the control process is simpler, but the accuracy of lighting representation in the virtual environment deteriorates
Solution Approach 1:
The control system segments the lighting control task by separately determining the position and orientation of each lighting device independently. This segmentation allows the system to process spatial data for multiple devices in an organized manner, improving position accuracy while managing data processing complexity through systematic division of control tasks
Solution Approach 2:
The system creates a virtual copy of the physical lighting device's position and orientation in the 3D environment. By determining the position and orientation data for each lighting device and using this information to control their operation, the system accurately represents the physical lighting setup in the virtual environment without requiring direct physical measurement during operation
Data Source
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AI summary
There is provided methods and apparatus of controlling a lighting device (11, 12). To reach that aim, first data representative of a position of the lighting device (11, 12) in a first environment (10) is received. First information representative of orientation (101, 102) of the lighting device (11, 12) in the first environment is determined according to the first data. At least a spatial sample is determined in a second environment as the intersection with a ray casted in the second environment according to the first information, color information being associated with each spatial sample of the set of spatial samples. The lighting device (11, 12) is controlled according to color data corresponding to color information associated with the at least a spatial sample.