Dynamic Ambient Lighting Control for Mixed Reality
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Solution Overview
Problem
Current computer-generated reality (CGR) systems face challenges in providing a high-quality experience due to limitations in camera technology, content generation, display quality, and processing speed, particularly in adjusting ambient lighting to enhance the mixed reality experience.
Innovation Solution
A system comprising a head-mounted device (HMD) that captures image data to determine current ambient lighting conditions and adjusts ambient lighting peripherals based on target criteria, using control signals to dynamically modify brightness, color temperature, and mechanical actuator positions to synchronize with CGR content displayed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ambient lighting is adjusted dynamically to enhance CGR content quality, then the quality of CGR experience is improved, but the system complexity and control requirements increase
Solution Approach 1:
The system pre-determines target lighting conditions based on CGR content characteristics before actual display. The controller analyzes CGR content parameters (brightness, color temperature requirements) in advance and prepares corresponding lighting adjustments, so when CGR content is displayed, the ambient lighting is already optimized, enhancing quality without adding real-time complexity.
Solution Approach 2:
The patent introduces a transceiver as an intermediary component between the controller and ambient lighting peripherals. The controller generates control signals with lighting adjustment instructions, which are transmitted via the transceiver to the lighting peripherals. This intermediary simplifies the control architecture by separating signal generation from execution, reducing direct system complexity.
2Measurement precision
If camera image data is processed to determine lighting conditions, then lighting accuracy is improved, but processing time and computational resources increase
Solution Approach 1:
The patent extracts only the essential information needed for lighting control from camera image data, rather than processing the entire image. The controller determines current lighting conditions by analyzing specific parameters (brightness levels, color temperature) extracted from the captured images, eliminating unnecessary computational overhead while maintaining lighting accuracy.
Solution Approach 2:
The system performs partial processing of camera data by focusing only on the portions and parameters relevant to lighting determination. Instead of full image analysis, the controller extracts lighting-relevant information (illumination levels, spectral characteristics) from the captured images, achieving sufficient accuracy with reduced processing time and computational resources.
3Reliability
If multiple ambient lighting parameters are adjusted (brightness, color temperature, position), then the quality of CGR content is improved, but the number of control signals and system complexity increase
Solution Approach 1:
The patent merges multiple lighting control functions into a single integrated controller that manages all ambient lighting peripherals. The controller generates comprehensive control signals that simultaneously adjust brightness, color temperature, and positional parameters of lighting devices. This consolidation reduces the number of separate control systems needed and simplifies the overall architecture while maintaining multi-parameter lighting adjustment capabilities.
Solution Approach 2:
The controller is designed as a universal device capable of performing multiple lighting adjustment functions through a single control interface. It can adjust various parameters (brightness, color temperature, position) of different types of ambient lighting peripherals using standardized control signals, eliminating the need for separate specialized controllers for each function and reducing system complexity.
Data Source
AI summary
An apparatus includes a transceiver and a controller in communication with the transceiver. The controller is configured to determine a target lighting condition in a room relative to a current lighting condition in the room. The controller is also configured to generate a control signal with instructions to adjust an ambient lighting peripheral in the room based on the determined target lighting condition. The control signal is provided to the transceiver for transmission.