Article(id=1200070652263756232, tenantId=1146029695717560320, journalId=1189918454225211397, issueId=1200070646895051378, articleNumber=null, orderNo=null, doi=10.20104/j.cnki.1674-6546.20240158, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=1714752000000, revisedDateStr=2024-05-04, acceptedDate=null, acceptedDateStr=null, onlineDate=1764048739733, onlineDateStr=2025-11-25, pubDate=1723651200000, pubDateStr=2024-08-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764048739733, onlineIssueDateStr=2025-11-25, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764048739733, creator=13701087609, updateTime=1764048739733, updator=13701087609, issue=Issue{id=1200070646895051378, tenantId=1146029695717560320, journalId=1189918454225211397, year='2024', volume='', issue='8', pageStart='1', pageEnd='48', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1764048738454, creator=13701087609, updateTime=1764049350066, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1200073212257203051, tenantId=1146029695717560320, journalId=1189918454225211397, issueId=1200070646895051378, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1200073212257203052, tenantId=1146029695717560320, journalId=1189918454225211397, issueId=1200070646895051378, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=15, endPage=21, ext={EN=ArticleExt(id=1200070652523803085, articleId=1200070652263756232, tenantId=1146029695717560320, journalId=1189918454225211397, language=EN, title=Infrared Pedestrian Object Detection Algorithm Based on Improved YOLOv7, columnId=1200070647679386243, journalTitle=Automotive Engineer, columnName=Special Issue on Intelligent Vehicle Environmental Perception and Target Detection Technology, runingTitle=null, highlight=null, articleAbstract=
To eliminate the defects of incomplete detection and high false detection rate caused by insignificant pedestrian target features, dense small targets and complex background in infrared images, this paper proposes an infrared pedestrian target detection algorithm based on improved YOLOv7. Firstly, the original Spatial Pyramid Pooling (SPP) module is replaced by the Channel Attention based Spatial Pyramid Pooling (CASPP) module based on the YOLOv7-tiny model, so that the model could pay more attention to the extraction of pedestrian features; then, the convolution module CBM based on the Meta-ACON activation function is introduced, which further suppressed the background noise and preserved the details of the pedestrians; finally, an alpha fusion data enhancement method is proposed to enrich the diversity of samples and improve the stability of the model in complex environments. The validation based on the FLIR dataset shows that the proposed method improves the accuracy by 3% and reduces the computation by 38% compared with the YOLOv7-tiny algorithm, which is more suitable for infrared pedestrian target detection scenarios.
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针对红外行人目标检测过程中,图像中行人目标特征不显著、小目标密集、背景复杂等因素导致的检测不全、误检率高等问题,提出了一种基于改进YOLOv7的红外行人目标检测算法。首先,以YOLOv7-tiny模型为基础,采用基于通道注意力机制的空间金字塔池化(CASPP)模块替换原始空间金字塔池化(SPP)模块,使模型更注重行人特征的提取;然后,引入基于Meta-ACON激活函数的卷积模块(CBM),进一步抑制背景噪声,保留行人细节;最后,提出一种alpha融合数据增强方法,以丰富样本的多样性,提高模型在复杂环境中的稳定性。基于FLIR数据集的验证结果表明,与YOLOv7-tiny算法相比,所提出的方法精度提高了3%,计算量减少了38%,更适用于红外行人目标检测场景。
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| 车速v/km·h-1 | 安全距离d/m |
| >100 | >100 |
| 60~100 | ≥v |
| <60 | ≥(v-10) |
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| 车速v/km·h-1 | 安全距离d/m |
| >100 | >100 |
| 60~100 | ≥v |
| <60 | ≥(v-10) |
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| 模型 | mAP (IoU=0.5) | 参数量/MB | 浮点运算量 /×109 次·s-1 |
| YOLOv3-tiny | 0.66 | 8.67 | 12.9 |
| YOLOv5s | 0.75 | 7.01 | 15.8 |
| YOLOv7-tiny | 0.75 | 6.01 | 13.0 |
| 本文方法 | 0.78 | 6.75 | 8.0 |
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在FLIR数据集实验结果
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| 模型 | mAP (IoU=0.5) | 参数量/MB | 浮点运算量 /×109 次·s-1 |
| YOLOv3-tiny | 0.66 | 8.67 | 12.9 |
| YOLOv5s | 0.75 | 7.01 | 15.8 |
| YOLOv7-tiny | 0.75 | 6.01 | 13.0 |
| 本文方法 | 0.78 | 6.75 | 8.0 |
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