Deposit Detection Device Dynamic Exclusion Logic
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Solution Overview
Problem
Conventional deposit detection devices are unstable in their detection, often erroneously excluding regions where deposits have been previously identified, leading to frequent changes in adhesion determination and unstable deposit detection.
Innovation Solution
A deposit detection device with an extraction module and an exclusion module that differentiates between two exception conditions based on the presence or absence of a deposit detection flag, relaxing exclusion criteria when a deposit is detected to maintain stable detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a candidate region corresponding to a region in which adhesion of a deposit is once identified in the past image is excluded, then the device complexity is reduced, but the reliability of deposit detection deteriorates
Solution Approach 1:
The patent applies dynamics by making the exclusion criteria changeable based on the deposit detection state. When a deposit is detected, the system switches to a state where candidate regions are not excluded even if they match past deposit locations. When no deposit is detected, the system returns to excluding such candidate regions. This dynamic adjustment of exclusion rules based on real-time detection state resolves the contradiction by maintaining simple exclusion logic while ensuring reliable continuous detection.
Solution Approach 2:
The patent changes the parameter of exclusion criteria based on the deposit detection flag. The exclusion condition is modified from a fixed rule to a conditional rule that depends on whether a deposit is currently detected. This parameter change allows the system to maintain simple exclusion logic under normal conditions while preventing erroneous exclusion when deposits are present, thus resolving the contradiction between simplicity and reliability.
2Reliability
If exclusion criteria are relaxed when a deposit is detected, then the reliability of deposit detection is improved, but the device complexity increases
Solution Approach 1:
The patent implements feedback by using the deposit detection result to control the exclusion behavior. The detection flag feeds back to the exclusion module, which adjusts its exclusion criteria accordingly. When the flag indicates a deposit is present, the feedback loop causes the exclusion module to relax its criteria and stop excluding candidate regions. This feedback mechanism achieves reliable continuous detection without requiring complex predictive or analytical logic.
Solution Approach 2:
The system performs self-service by automatically adjusting its own exclusion criteria based on its detection state. The exclusion module monitors the deposit detection flag and autonomously modifies its behavior without external intervention. This self-adjusting capability maintains reliability while keeping the control logic simple, as the system serves itself rather than requiring complex external control.
Data Source
AI summary
A deposit detection device according to an embodiment includes an extraction module and an exclusion module. The extraction module extracts a candidate region for a deposit from a captured image captured by an imaging device. The exclusion module excludes from the candidate region a region that satisfies a predetermined exception condition. The exclusion module excludes from the candidate region a region that satisfies a first exception region when adhesion of a deposit to the imaging device is not detected, and excludes from the candidate region a region that satisfies a second exception condition different from the first exception condition when adhesion of the deposit to the imaging device is detected.