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Robust Vehicle Speed Measurement Based on Feature Information Fusion for Vehicle Multi-Characteristic Detection
- Source :
- Entropy, Vol 23, Iss 910, p 910 (2021), Entropy, Volume 23, Issue 7, Pages: 910
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- A robust vehicle speed measurement system based on feature information fusion for vehicle multi-characteristic detection is proposed in this paper. A vehicle multi-characteristic dataset is constructed. With this dataset, seven CNN-based modern object detection algorithms are trained for vehicle multi-characteristic detection. The FPN-based YOLOv4 is selected as the best vehicle multi-characteristic detection algorithm, which applies feature information fusion of different scales with both rich high-level semantic information and detailed low-level location information. The YOLOv4 algorithm is improved by combing with the attention mechanism, in which the residual module in YOLOv4 is replaced by the ECA channel attention module with cross channel interaction. An improved ECA-YOLOv4 object detection algorithm based on both feature information fusion and cross channel interaction is proposed, which improves the performance of YOLOv4 for vehicle multi-characteristic detection and reduces the model parameter size and FLOPs as well. A multi-characteristic fused speed measurement system based on license plate, logo, and light is designed accordingly. The system performance is verified by experiments. The experimental results show that the speed measurement error rate of the proposed system meets the requirement of the China national standard GB/T 21555-2007 in which the speed measurement error rate should be less than 6%. The proposed system can efficiently enhance the vehicle speed measurement accuracy and effectively improve the vehicle speed measurement robustness.
- Subjects :
- cross-channel interaction
Computer science
Science
QC1-999
General Physics and Astronomy
Word error rate
02 engineering and technology
vehicle speed measurement
Residual
Astrophysics
Article
YOLOv4
Robustness (computer science)
0502 economics and business
0202 electrical engineering, electronic engineering, information engineering
Computer vision
feature information fusion
ECA
050210 logistics & transportation
business.industry
Physics
05 social sciences
FLOPS
Object detection
QB460-466
Information fusion
Feature (computer vision)
020201 artificial intelligence & image processing
Artificial intelligence
business
Communication channel
Subjects
Details
- Language :
- English
- ISSN :
- 10994300
- Volume :
- 23
- Issue :
- 910
- Database :
- OpenAIRE
- Journal :
- Entropy
- Accession number :
- edsair.doi.dedup.....6d371672ae4c88114d53d9c52a532811