Dynamic Infrared Lamp Binding for Four-Lens Camera Light Compensation
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Solution Overview
Problem
In multi-lens adjustable cameras, the fixed infrared lamp groups cannot move with the lenses, resulting in a small overlapped area between the monitored scenes and the illuminated areas, leading to poor light compensation, especially in low-light conditions.
Innovation Solution
A method to determine the brightness change rate for each lens by comparing images with and without infrared lamp groups turned on, and rebind the infrared lamp groups to the lens with the largest brightness change rate to maximize light compensation, ensuring effective light enhancement across all lenses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If infrared lamp groups are pre-disposed for each infrared lens, then light compensation can be performed on the corresponding lens, but the overlapped area between monitored scenes and illuminated areas becomes small when lenses are adjusted, leading to poor light compensation
Solution Approach 1:
The patent implements dynamic binding between infrared lens groups and infrared lamp groups. The binding relationship is not fixed but can be reconfigured based on actual monitoring needs. When a lens is adjusted to a new position, the system dynamically updates which infrared lamp group should serve which lens, ensuring optimal light compensation coverage throughout the monitoring process.
Solution Approach 2:
The system changes the binding parameter between lenses and infrared lamp groups from a static pre-disposed relationship to a dynamic relationship that adapts to lens position changes. By monitoring the positional parameters of lenses and recalculating the optimal binding relationships, the system maintains effective light compensation even when lenses are adjusted to different viewing angles or positions.
2Device complexity
If infrared lamp groups are fixed, then the structure is simple, but they cannot move with the lenses resulting in small overlapped area and poor light compensation
Solution Approach 1:
The patent replaces the mechanical approach of physically moving infrared lamp groups with lenses (which would be complex) with a software-based dynamic binding system. Instead of mechanically coupling the lamp groups to the lenses, the system uses computational methods to determine and update the binding relationships, achieving adaptability without mechanical complexity.
Solution Approach 2:
The infrared lamp groups serve multiple lenses dynamically rather than being dedicated to a single fixed lens. Each infrared lamp group can be bound to different lenses at different times based on which lens currently needs illumination in its monitoring direction, making the infrared lighting system universal and multi-functional.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach improves the light compensation effect by dynamically rebinding infrared lamp groups to lenses with the best brightness change rate, enhancing image clarity in low-light conditions and maintaining consistent brightness across all monitored scenes.
Implementation Method 1
an infrared LED which emits infrared light
Implementation Method 2
a pixel for receiving green visible light and infrared light, a pixel for receiving red visible light and infrared light, a pixel for receiving blue visible light and infrared light, and a pixel for receiving infrared light
Data Source
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Figure 3
Figure 4~5
AI summary
Embodiments of the present application provide a method and an apparatus for controlling an infrared lamp and a four-lens adjustable camera. The method includes: determining, for each of a plurality of lenses of a four-lens adjustable camera, a brightness change rate between a picture captured by the lens when a first infrared lamp group is not turned on and a picture captured by the lens when the first infrared lamp group is turned on, the first infrared lamp group being one infrared lamp group in the four-lens adjustable camera; determining a lens with a largest brightness change rate among the plurality of lenses as a lens bound to the first infrared lamp group. The embodiments of the present application improve the light compensation effect of the first infrared lamp group on the premise that the first infrared lamp group is fixed.