Vehicle Imaging Selectivity via Polarization Filtering
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Solution Overview
Problem
Imaging systems on vehicles can produce false images or erroneous outcomes when detecting light emissions from nearby or passing imaging systems, leading to unusable or inconsistent results due to the detection of direct emissions or reflections from multiple systems.
Innovation Solution
The implementation of polarization in imaging systems to distinguish between desired and unwanted light radiation by using polarizers that selectively pass light with a predetermined polarization and attenuate light without it, combined with time-multiplexing and frequency-multiplexing techniques to enhance selectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple imaging systems are deployed on vehicles to detect objects, then object detection capability and coverage are improved, but false detections and erroneous outcomes increase due to interference from other systems' light emissions
Solution Approach 1:
The patent applies polarization as a parameter change to distinguish between desired and unwanted light radiation. By assigning different polarization states to different imaging systems and using polarizers to filter incoming light, the system can selectively pass desired polarized light while blocking unpolarized or differently polarized light from other systems, thereby resolving the interference problem while maintaining multi-system deployment
Solution Approach 2:
The patent introduces polarizers as intermediary components between the imaging systems and the environment. These polarizers act as mediators that selectively transmit light based on polarization state, allowing the imaging system to distinguish between its own emitted light (which reflects with preserved polarization characteristics) and light from other systems (which has different polarization states), thus eliminating false detections
2Measurement precision
If imaging systems use polarizers to filter light and improve selectivity, then detection accuracy is improved, but device complexity increases due to additional optical components
Solution Approach 1:
The patent makes the imaging systems universally compatible by using standard polarizer components that can be integrated into existing imaging architectures. The polarization-based solution works across different imaging systems and platforms, allowing a single approach to solve interference problems for all deployed systems without requiring system-specific modifications, thus managing complexity through standardization
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 selectivity of imaging systems, allowing them to accurately detect and track objects while rejecting stray light emissions from other systems, resulting in more reliable and consistent imaging results.
Implementation Method 1
Each imaging device includes a polarizer arranged to polarize light radiation to a first polarization
Implementation Method 2
detecting, based on the reflection received, an object within the preselected area
Data Source
AI summary
Representative implementations of devices and techniques provide selectivity for imaging devices and systems. Polarization may be applied to emitted light radiation and/or received light radiation to select a desired imaging result. Using polarization, an imaging device or system can pass desired light radiation having desired information and reject unwanted or stray light radiation.