Flash Detection Using Image Buffer Validation
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Solution Overview
Problem
Current flash detection systems face challenges in accurately distinguishing between genuine flash events and false alarms, particularly due to solar clutter and the need for high-speed sampling rates that exceed current technological capabilities, leading to high false alarm rates and reduced efficiency.
Innovation Solution
A method involving high-resolution image capture and processing, where radiation emission readings from photo detectors are used to detect flash events, with a buffer storing images prior to the event for validation, allowing for spectral and temporal analysis to differentiate between flash events and clutter, and utilizing a higher sampling rate than the camera frame rate to enhance detection accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-speed sampling rates are used to detect flash events, then detection accuracy is improved, but false alarm rates increase due to solar clutter
Solution Approach 1:
The patent divides the detection process into multiple sequential stages: initial flash detection, solar clutter identification, and validation. By segmenting the analysis into distinct phases with different criteria, the system can achieve high detection accuracy while filtering out solar clutter false alarms through the validation stage that compares temporal and spectral characteristics
Solution Approach 2:
The patent introduces an intermediary validation mechanism that acts as a mediator between detection and final confirmation. This validation stage uses temporal analysis and spectral comparison to distinguish genuine flash events from solar clutter, thereby reducing false alarms while maintaining detection accuracy
2Device complexity
If current technological sampling rates are used, then device complexity is reduced, but detection accuracy decreases due to inability to capture fast flash events
Solution Approach 1:
The patent performs preliminary detection using available lower-speed sensors to identify potential flash events, then triggers high-speed capture only when needed. This preliminary action allows the system to maintain low device complexity while achieving high detection accuracy through selective high-speed operation
Solution Approach 2:
The patent applies partial high-speed sampling by using high-rate sampling only for brief critical periods when flash events are detected, rather than continuous high-speed operation. This approach achieves sufficient detection accuracy without requiring the full technological capability continuously, reducing overall device complexity
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 reduces false alarm rates and improves the accuracy of flash detection by utilizing continuous high-resolution imaging and advanced signal processing techniques, enabling better differentiation between flash events and solar clutter, thus enhancing the reliability of flash detection systems.
Implementation Method 1
obtaining radiation emission readings from one or more photo detectors
Data Source
AI summary
The present disclosure provides a method including memorizing a sequence of high-resolution images of a scene in a buffer, obtaining radiation emission readings from one or more photo detectors, detecting a suspected flash event based on processing the radiation emission readings from the one or more photo detectors. The method may further include that the detecting occurs at a first instant, retrieving from the buffer high-resolution images of the scene including at least one image that was captured prior to said first instant, and processing the high-resolution images of the scene to determine a geolocation of the suspected flash event.