Automated Pest Counting in Water Traps through Active Robotic Stirring for Occlusion Handling
Xumin Gao, Mark Stevens, Grzegorz Cielniak

TL;DR
This paper introduces an active robotic stirring system to improve pest counting accuracy in water traps by reducing occlusion, using adaptive control and optimized stirring patterns to outperform static image methods.
Contribution
It presents a novel robotic stirring approach with adaptive control and optimized patterns for pest counting, significantly enhancing accuracy and efficiency over static methods.
Findings
Optimal stirring pattern is four circles.
Adaptive stirring reduces task time by 44.7%.
Counting error decreases by up to 3.428 in high-density scenarios.
Abstract
Existing image-based pest counting methods rely on single static images and often produce inaccurate results under occlusion. To address this issue, this paper proposes an automated pest counting method in water traps through active robotic stirring. First, an automated robotic arm-based stirring system is developed to redistribute pests and reveal occluded individuals for counting. Then, the effects of different stirring patterns on pest counting performance are investigated. Six stirring patterns are designed and evaluated across different pest density scenarios to identify the optimal one. Finally, a heuristic counting confidence-driven closed-loop control system is proposed for adaptive-speed robotic stirring, adjusting the stirring speed based on the average change rate of counting confidence between consecutive frames. Experimental results show that the four circles is the optimal…
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