Uncooled Gas Imaging Camera Using Multi-Spectral Analysis
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Solution Overview
Problem
Traditional gas imaging cameras require cooling, making them bulky, expensive, and limiting their portability and cost-effectiveness.
Innovation Solution
An uncooled gas imaging system utilizing multiple cameras, one configured for broadband imaging and another for narrowband imaging, with a controller to analyze data and indicate gas presence, allowing for simultaneous imaging and improved portability and cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If cooling equipment is used in gas imaging cameras, then detection accuracy is improved, but device size and cost increase significantly
Solution Approach 1:
The patent divides the imaging system into multiple uncooled cameras, each equipped with specific spectral filters, to collectively achieve the gas detection functionality previously requiring a single cooled camera. This segmentation allows each camera to operate independently at ambient temperature while the combination provides spectral discrimination capability for accurate gas detection.
Solution Approach 2:
The uncooled cameras are designed to perform multiple functions: general broadband imaging and specific gas detection through spectral filtering. By configuring cameras with different spectral filters (bandpass, longpass, shortpass), the system achieves both wide-area surveillance and targeted gas detection using the same hardware platform, eliminating the need for specialized cooled detectors.
2Measurement precision
If cooling equipment is used in gas imaging cameras, then detection accuracy is improved, but manufacturing cost increases
Solution Approach 1:
The patent employs inexpensive uncooled camera modules with spectral filters instead of costly cooled detectors. These uncooled cameras can be mass-produced using standard consumer electronics manufacturing processes, making the system economically viable for widespread deployment while maintaining adequate detection accuracy through multi-camera spectral analysis.
Solution Approach 2:
The system changes the operational parameters by operating cameras at ambient temperature rather than cryogenic temperatures. By adjusting spectral filtering parameters across multiple cameras and using advanced image processing algorithms, the system achieves gas detection accuracy comparable to cooled systems while dramatically reducing manufacturing costs and complexity.
3Stability of the object's composition
If cooling equipment is used in gas imaging cameras, then thermal stability is improved, but portability and battery life deteriorate
Solution Approach 1:
The patent extracts and removes the cooling subsystem from the imaging system entirely. By using uncooled cameras that operate at ambient temperature, the heavy thermal management equipment (coolers, heat sinks, insulation) is eliminated, resulting in a lightweight, portable system with extended battery life while maintaining gas detection capability through spectral filtering and multi-camera analysis.
4Measurement precision
If multiple cameras are used for uncooled imaging, then gas detection accuracy is improved, but system complexity increases
Solution Approach 1:
The patent merges the data from multiple uncooled cameras with different spectral filters into a unified gas detection analysis. By combining the spectral information from cameras with bandpass, longpass, and shortpass filters, the system achieves accurate gas detection through integrated processing, where the complexity is managed through software algorithms that fuse multiple data streams into coherent gas presence indicators.
Solution Approach 2:
The patent introduces image processing algorithms and spectral analysis software as intermediaries that translate the raw data from multiple uncooled cameras into actionable gas detection results. These intermediary processing layers reconcile the data from different cameras, perform spectral unmixing, and generate gas presence indicators, effectively managing system complexity through intelligent software mediation.
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
The system provides lower cost, smaller size, longer battery life, better portability, and improved detection accuracy under motion, with higher immunity to selective radiators and easier image registration.
Implementation Method 1
a first camera configured to acquire a plurality of first image frames of at least a first scene in a broad wavelength band... a second camera configured to acquire a plurality of second image frames of at least the first scene in a narrow wavelength band
Data Source
AI summary
Various embodiments of the present disclosure may include an imaging system that includes a plurality of uncooled cameras configured to detect the presence of gas within a scene imaged. The plurality of cameras may include at least one broadband camera and at least one narrowband camera. The narrowband camera may include a filter or image data from the narrowband camera may be filtered to the band desired. The images captured by the broadband and narrowband cameras may be processed and/or analyzed to determine the presence of gas within the scene. An image may be generated incorporating the image data of the broadband and narrowband cameras and the presence of gas may be indicated within the image.