A Vehicle Detection Method Based on Adaptive Multi-Scale Feature Fusion Network

SHEN Xuan-jing; LI Han-yu; HUANG Yong-ping; WANG Yu

doi:10.12263/DZXB.20220281

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A Vehicle Detection Method Based on Adaptive Multi-Scale Feature Fusion Network

更新时间：2023-03-23

- A Vehicle Detection Method Based on Adaptive Multi-Scale Feature Fusion Network
- ACTA ELECTRONICA SINICA Pages: 1-9(2023)
- 作者机构：
  
  1.吉林大学计算机科学与技术学院，吉林长春 130012
  2.吉林大学软件学院，吉林长春 130012
- 作者简介：
- 基金信息：
  
  Jilin Provincial Science and Technology Development Plan Project(20180201064SF)
- DOI：10.12263/DZXB.20220281
  CLC： TP391;
- Received：18 March 2022，
  
  Revised：2022-09-08，
  
  Published Online：23 March 2023，
- 稿件说明：
移动端阅览
SHEN Xuan-jing, LI Han-yu, HUANG Yong-ping, et al. A Vehicle Detection Method Based on Adaptive Multi-Scale Feature Fusion Network[J/OL]. ACTA ELECTRONICA SINICA, 2023, 1-9.
DOI：

SHEN Xuan-jing, LI Han-yu, HUANG Yong-ping, et al. A Vehicle Detection Method Based on Adaptive Multi-Scale Feature Fusion Network[J/OL]. ACTA ELECTRONICA SINICA, 2023, 1-9. DOI： 10.12263/DZXB.20220281.

摘要

为了提高车辆检测精度，解决小目标车辆难以检测的问题，本文提出了自适应多尺度特征融合网络（Adaptive Multi-scale Feature Fusion Network，AMFFN），并基于该网络对YOLO v4进行了改进，取得了更好的检测效果.该网络通过使用多个空间金字塔池化，提高特征的表示能力.提出的AMFFN跨层融合了多尺度的特征，并为不同尺度的特征层分配可学习的权重.为了更好地获得特征的细节信息，本文选择了DY-ReLU作为激活函数，它可以随输入动态变化.AMFFN可以被视为一个可重用的模块，通过反复融合特性来获得更精细的特性.为了避免复杂的网络结构导致的巨大参数量，使用深度可分离卷积替换普通卷积，以降低参数量，提高网络检测速度.实验结果表明，本文提出的方法相比YOLO v4提高了1.90%的AP，检测速度提高了5 FPS.

Abstract

In order to improve the vehicle detection accuracy and solve the problem that small vehicles are difficult to detect

an adaptive multi-scale feature fusion network (AMFFN) is proposed and better performance is achieved after applying it to YOLO v4. To improve the representation capability of features

spatial pyramid pooling modules are employed on each feature map. The proposed AMFFN fuses features of multiple scales across layers and assigns learnable weights to layers of different scales. In order to achieve detailed information better

we select DY-ReLU as activation function

which can change dynamically with input. AMFFN can be treated as a reusable module to obtain more refined features by repeatedly fusing features. To avoid the huge amount of parameters caused by the complex network

depthwise separable convolution is used to replace the normal convolution in order to reduce the amount of parameters and increase the speed of detection. Experimental results show that the proposed method improves the AP by 1.90% and the detection speed by 5 FPS.

关键词

Keywords

references

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