Bibliographic record
Abstract
Vehicle detection and counting play a crucial role in intelligent transportation systems, traffic monitoring, and urban planning. Traditional methods for vehicle detection often struggle with accuracy and real-time performance, especially in dynamic environments. With the advancement of deep learning, object detection models like YOLOv4 (You Only Look Once) have significantly improved detection speed and accuracy. Coupled with OpenCV, a powerful computer vision library, YOLOv4 enables efficient vehicle detection and tracking in real-world scenarios. In this work, we implement a vehicle detection and counting system using the YOLOv4 deep learning model and OpenCV. The system processes video streams to detect vehicles, classify them, and count their movement across predefined regions. YOLOv4's convolutional neural network architecture allows for high-speed inference, while OpenCV handles image preprocessing, post-processing, and visualization. The model is trained on a dataset of various vehicle types and optimized for real-time performance on both CPU and GPU environments. Our implementation achieves high accuracy in vehicle detection and counting, even in challenging conditions such as occlusions, varying lighting, and heavy traffic. The system demonstrates real-time processing capabilities, making it suitable for smart traffic management applications. By leveraging YOLOv4 and OpenCV, we provide a robust and efficient solution for automated vehicle monitoring, contributing to improved traffic flow analysis and transportation planning.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.006 | 0.004 |
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".