Electrical Device State Recognition via Polygon Image Recovery
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Solution Overview
Problem
Current camera-based methods for automatically recognizing the state of electrical devices are inefficient and prone to misjudgment due to complex field environments, variability in lighting, and camera position, leading to instability and poor universality.
Innovation Solution
The method involves obtaining an image of an electrical device on a predefined polygon, recovering the original appearance through perspective correction, and determining the device's state based on characteristic images within a predefined position, allowing for fast and stable recognition with high accuracy and adaptability to different lighting conditions and camera positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional camera image recognition methods are used with extensive preprocessing, then recognition capability is attempted, but computation cost increases and recognition efficiency decreases
Solution Approach 1:
The patent segments the image processing task by first detecting the polygon contour to define a region of interest, then only performing detailed feature extraction and recognition within that specific region rather than processing the entire image. This segmentation approach reduces computation while maintaining recognition accuracy.
Solution Approach 2:
The patent extracts and utilizes the polygon contour as a key geometric feature that directly characterizes the electrical device's state. By taking out this essential geometric property and using it as the primary recognition basis, the system avoids extensive preprocessing while achieving accurate recognition.
2Reliability
If traditional image preprocessing and full-image scanning are performed, then recognition is attempted, but the method shows instability and poor universality due to environmental variability
Solution Approach 1:
The patent changes the recognition parameter from intensity-based features (color, brightness) that are sensitive to lighting conditions to geometric parameters (polygon contour, shape characteristics) that remain stable under varying environmental conditions. This parameter transformation improves reliability without increasing complexity.
3Measurement precision
If extensive image preprocessing is performed to handle environmental variability, then recognition capability is improved, but computation time and cost increase
Solution Approach 1:
The patent performs preliminary action by detecting the polygon contour first to establish the region of interest and geometric framework before conducting detailed recognition. This preliminary geometric analysis provides a stable basis for subsequent recognition, reducing the need for time-consuming preprocessing steps.
Data Source
AI summary
Embodiments of the present disclosure provide a method and device for recognizing a state of an electrical device. The method includes obtaining an image of the electrical device in a field, wherein the electrical device is disposed on a plane of a predefined polygon in the field; obtaining an original appearance image of the electrical device in the field by recovering the predefined polygon in the image to an original appearance of the predefined polygon; and determining the state of the electrical device based on the original appearance image of the electrical device in the field.