A Novel Computer Vision System for Efficient Flea Beetle Monitoring in Canola Crop
Bibliographic record
Abstract
Effective crop health monitoring is essential for farmers to make informed decisions about managing their crops. In canola crop management, the rapid proliferation of flea beetle (FB) populations is a major concern, as these pests can cause significant crop damage. Traditional manual field monitoring for FBs is time consuming and error-prone due to its reliance on visual assessments of FB damage to small seedlings, making conducting frequent and accurate surveys difficult. One of the key pieces of information in assessing if control of FBs is required is the presence of live FBs in the canola crop. This article proposes a novel insect-monitoring framework that uses a solar-powered, intelligent trap called the smart insect trap (SIT), equipped with a high-resolution camera and a deep-learning-based object detection network. Using this SIT, coupled with a kairomonal lure, the FB population can be monitored hourly, and population increases can be identified quickly. The SIT processes images at the edge and sends results to the cloud every 40 min for FB monitoring and analysis. It uses a modified you look only once version 8 small (YOLOv8s) object detection network, FB-YOLO, to improve its ability to detect small FBs. The modification is implemented in the network's neck, which aggregates features from the deep and early pyramids of the backbone in the neck. Improved attention to small objects is achieved by incorporating spatially aware features from early pyramids. In addition, the network is integrated with an advanced box selection algorithm called confluence nonmax suppression (NMS-C) to prevent duplicate detections in highly overlapped clusters of FBs. The FB-YOLO achieved an average precision ($\text{mAP}@0.5$) of 89.97%, a 1.215% improvement over the YOLOv8s network with only 0.324 million additional parameters. Integrating NMS-C further improved the$\text{mAP}@0.5$by 0.19%, leading to an overall$\text{mAP}@0.5$of 90.16%.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".