Article(id=1157001868112122426, tenantId=1146029695717560320, journalId=1146120084050784272, issueId=1157001741804855503, articleNumber=null, orderNo=null, doi=10.19562/j.chinasae.qcgc.2024.09.017, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1708876800000, receivedDateStr=2024-02-26, revisedDate=1713542400000, revisedDateStr=2024-04-20, acceptedDate=null, acceptedDateStr=null, onlineDate=1753780341412, onlineDateStr=2025-07-29, pubDate=1727193600000, pubDateStr=2024-09-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753780341412, onlineIssueDateStr=2025-07-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753780341412, creator=13701087609, updateTime=1753780341412, updator=13701087609, issue=Issue{id=1157001741804855503, tenantId=1146029695717560320, journalId=1146120084050784272, year='2024', volume='46', issue='9', pageStart='1537', pageEnd='1722', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=0, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1753780311297, creator=13701087609, updateTime=1756792455058, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1169635588480184833, tenantId=1146029695717560320, journalId=1146120084050784272, issueId=1157001741804855503, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1169635588480184834, tenantId=1146029695717560320, journalId=1146120084050784272, issueId=1157001741804855503, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1697, endPage=1706, ext={EN=ArticleExt(id=1157001870616121931, articleId=1157001868112122426, tenantId=1146029695717560320, journalId=1146120084050784272, language=EN, title=Cockpit Facial Expression Recognition Model Based on Attention Fusion and Feature Enhancement Network, columnId=null, journalTitle=Automotive Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=
For the problem of difficulty in balancing accuracy and real-time performance of deep learning models for intelligent cockpit driver expression recognition, an expression recognition model called EmotionNet based on attention fusion and feature enhancement network is proposed. Based on GhostNet, the model utilizes two detection branches within the feature extraction module to fuse coordinate attention and channel attention mechanisms to realize complementary attention mechanisms and all-round attention to important features. A feature enhanced neck network is established to fuse feature information of different scales. Finally, decision level fusion of feature information at different scales is achieved through the head network. In training, transfer learning and central loss function are introduced to improve the recognition accuracy of the model. In the embedded device testing experiments on the RAF-DB and KMU-FED datasets, the model achieves the recognition accuracy of 85.23% and 99.95%, respectively, with a recognition speed of 59.89 FPS. EmotionNet balances recognition accuracy and real-time performance, achieving a relatively advanced level and possessing certain applicability for intelligent cockpit expression recognition tasks.
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针对智能座舱驾驶员表情识别深度学习模型准确率和实时性难以兼顾的问题,提出一种基于注意力融合与特征增强网络的表情识别模型EmotionNet。模型以GhostNet为基础,在特征提取模块内利用两个检测分支融合坐标注意力和通道注意力机制,实现注意力机制互补与对重要特征的全方位关注;建立特征增强颈部网络以融合不同尺度特征信息;最终通过头部网络实现不同尺度特征信息决策级融合。在训练中则引入迁移学习思想和中心损失函数以进一步提高模型的识别准确性。在RAF-DB和KMU-FED数据集实验中,模型分别取得85.23%和99.95%识别准确率,并达到59.89 FPS的识别速度。EmotionNet平衡了识别准确率和实时性,达到了较为先进的水平并具备一定的智能座舱表情识别任务的适用性。
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Reliable crowdsourcing and deep locality-preserving learning for expression recognition in the wild[C]. Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition, 2017: 2852-2861., articleTitle=null, refAbstract=null), Reference(id=1157002126187647774, tenantId=1146029695717560320, journalId=1146120084050784272, articleId=1157001868112122426, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=19, rfOrder=20, authorNames=null, journalName=null, refType=null, unstructuredReference=JEONG M, KO B C. Driver’s facial expression recognition in real-time for safe driving[J]. 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| 注意力机制 | 关注特征信息 |
| 通道注意力 | 重要特征所在通道 |
| 空间注意力 | 重要特征所在位置 |
| 坐标注意力 | 重要特征所在通道及位置 |
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不同注意力机制关注的特征信息
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| 注意力机制 | 关注特征信息 |
| 通道注意力 | 重要特征所在通道 |
| 空间注意力 | 重要特征所在位置 |
| 坐标注意力 | 重要特征所在通道及位置 |
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| 模块 | 卷积核大小 | 步长 | 输入/扩展/输出通道 |
| C-CA-Block1 | 3×3 | 2 | 16/80/24 |
| C-CA-Block2 | 3×3 | 2 | 24/144/48 |
| C-CA-Block3 | 5×5 | 2 | 48/576/96 |
| C-CA-Block4 | 5×5 | 1 | 96/576/96 |
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主干网络C-CA-Block参数设定
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| 模块 | 卷积核大小 | 步长 | 输入/扩展/输出通道 |
| C-CA-Block1 | 3×3 | 2 | 16/80/24 |
| C-CA-Block2 | 3×3 | 2 | 24/144/48 |
| C-CA-Block3 | 5×5 | 2 | 48/576/96 |
| C-CA-Block4 | 5×5 | 1 | 96/576/96 |
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| 数据集名称/类别 | 愤怒 | 厌恶 | 恐惧 | 开心 | 中性 | 伤心 | 惊讶 | 总计 |
| CK+[14] | 135 | 177 | 75 | 207 | 0 | 84 | 249 | 927 |
| FER2013[15] | 4 953 | 547 | 5 121 | 8 989 | 6 077 | 4 002 | 6 198 | 35 887 |
| Affectnet[16](节选) | 3 218 | 2 477 | 3 175 | 5 044 | 5 126 | 3 091 | 4 039 | 26 170 |
| MMAFEDB[17] | 8 624 | 4 542 | 6 209 | 39 526 | 41 081 | 16 636 | 11 062 | 127 680 |
| 总计 | 16 930 | 7 743 | 14 580 | 53 766 | 52 284 | 23 813 | 21 548 | 190 664 |
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预训练数据集所融合数据集
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| 数据集名称/类别 | 愤怒 | 厌恶 | 恐惧 | 开心 | 中性 | 伤心 | 惊讶 | 总计 |
| CK+[14] | 135 | 177 | 75 | 207 | 0 | 84 | 249 | 927 |
| FER2013[15] | 4 953 | 547 | 5 121 | 8 989 | 6 077 | 4 002 | 6 198 | 35 887 |
| Affectnet[16](节选) | 3 218 | 2 477 | 3 175 | 5 044 | 5 126 | 3 091 | 4 039 | 26 170 |
| MMAFEDB[17] | 8 624 | 4 542 | 6 209 | 39 526 | 41 081 | 16 636 | 11 062 | 127 680 |
| 总计 | 16 930 | 7 743 | 14 580 | 53 766 | 52 284 | 23 813 | 21 548 | 190 664 |
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| 数据集 名称/ 类别 | 愤怒 | 厌恶 | 恐惧 | 开心 | 中性 | 伤心 | 惊讶 | 总计 |
| 融合 数据集 | 10 000 | 7 743 | 10 000 | 10 000 | 10 000 | 10 000 | 10 000 | 67 743 |
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预训练数据集数据分布
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| 数据集 名称/ 类别 | 愤怒 | 厌恶 | 恐惧 | 开心 | 中性 | 伤心 | 惊讶 | 总计 |
| 融合 数据集 | 10 000 | 7 743 | 10 000 | 10 000 | 10 000 | 10 000 | 10 000 | 67 743 |
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| 数据集名称/类别 | 愤怒 | 厌恶 | 恐惧 | 开心 | 中性 | 伤心 | 惊讶 | 总计 |
| RAF-DB | 867 | 877 | 355 | 5 957 | 3 204 | 2 460 | 1 619 | 15 339 |
| KMU-FED | 196 | 120 | 200 | 210 | 0 | 180 | 200 | 1 106 |
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RAF-DB和KMU-FED样本分布
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| 数据集名称/类别 | 愤怒 | 厌恶 | 恐惧 | 开心 | 中性 | 伤心 | 惊讶 | 总计 |
| RAF-DB | 867 | 877 | 355 | 5 957 | 3 204 | 2 460 | 1 619 | 15 339 |
| KMU-FED | 196 | 120 | 200 | 210 | 0 | 180 | 200 | 1 106 |
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| 数据集名称/类别 | 愤怒 | 厌恶 | 恐惧 | 开心 | 中性 | 伤心 | 惊讶 |
| RAF-DB | | | | | | | |
| KMU-FED | | | | | | | |
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RAF-DB和KMU-FED样本样例
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| 数据集名称/类别 | 愤怒 | 厌恶 | 恐惧 | 开心 | 中性 | 伤心 | 惊讶 |
| RAF-DB | | | | | | | |
| KMU-FED | | | | | | | |
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| 模型 | ACC/RAF-DB | ACC/KMU-FED | FPS | GFLOPs | Parameters |
| GhostNet | 81.14% | 97.32% | 33.39 | 0.052 | 3.91 M |
| MobileNetV3-small | 80.51% | 81.39% | 46.88 | 0.023 | 1.68 M |
| EfficientNetV2-S | 85.12% | 97.77% | 20.72 | 0.949 | 20.19 M |
| A-MobileNet | 84.49% | 87.40% | 79.81 | 0.756 | 5.26 M |
| Deep-Emotion | 76.46% | 99.55% | 406.50 | 0.159 | 2.28 M |
| EmotionNet | 85.23% | 99.95% | 59.89 | 0.345 | 4.75 M |
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对比实验结果
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| 模型 | ACC/RAF-DB | ACC/KMU-FED | FPS | GFLOPs | Parameters |
| GhostNet | 81.14% | 97.32% | 33.39 | 0.052 | 3.91 M |
| MobileNetV3-small | 80.51% | 81.39% | 46.88 | 0.023 | 1.68 M |
| EfficientNetV2-S | 85.12% | 97.77% | 20.72 | 0.949 | 20.19 M |
| A-MobileNet | 84.49% | 87.40% | 79.81 | 0.756 | 5.26 M |
| Deep-Emotion | 76.46% | 99.55% | 406.50 | 0.159 | 2.28 M |
| EmotionNet | 85.23% | 99.95% | 59.89 | 0.345 | 4.75 M |
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| 模块精简 | C-CA-Block | 特征增强网络 | 双分类头 | 中心损失 | 迁移学习 | ACC | FPS | GFLOPs | Parameters |
| | | | | | 81.14% | 33.39 | 0.052 | 3.91 M |
| √ | | | | | | 78.78% | 110.55 | 0.035 | 1.82 M |
| √ | √ | | | | | 80.02% | 104.45 | 0.035 | 1.82 M |
| √ | √ | √ | | | | 83.22% | 63.16 | 0.326 | 4.67 M |
| √ | √ | √ | √ | | | 83.35% | 51.87 | 0.345 | 4.75 M |
| √ | √ | √ | √ | √ | | 83.52% | 51.87 | 0.345 | 4.75 M |
| √ | √ | √ | √ | √ | √ | 85.23% | 51.87 | 0.345 | 4.75 M |
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消融实验结果
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| 模块精简 | C-CA-Block | 特征增强网络 | 双分类头 | 中心损失 | 迁移学习 | ACC | FPS | GFLOPs | Parameters |
| | | | | | 81.14% | 33.39 | 0.052 | 3.91 M |
| √ | | | | | | 78.78% | 110.55 | 0.035 | 1.82 M |
| √ | √ | | | | | 80.02% | 104.45 | 0.035 | 1.82 M |
| √ | √ | √ | | | | 83.22% | 63.16 | 0.326 | 4.67 M |
| √ | √ | √ | √ | | | 83.35% | 51.87 | 0.345 | 4.75 M |
| √ | √ | √ | √ | √ | | 83.52% | 51.87 | 0.345 | 4.75 M |
| √ | √ | √ | √ | √ | √ | 85.23% | 51.87 | 0.345 | 4.75 M |
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| 愤怒 | 厌恶 | 恐惧 | 开心 | 中性 | 伤心 | 惊讶 |
| 愤怒 | 75% | 10% | 2% | 59% | 3% | 2% | 2% |
| 厌恶 | 8% | 45% | 4% | 8% | 16% | 13% | 6% |
| 恐惧 | 5% | 3% | 54% | 5% | 7% | 7% | 18% |
| 开心 | 1% | 1% | 0% | 92% | 4% | 1% | 1% |
| 中性 | 1% | 3% | 1% | 5% | 79% | 8% | 3% |
| 伤心 | 3% | 4% | 0% | 5% | 12% | 75% | 1% |
| 惊讶 | 3% | 2% | 2% | 3% | 6% | 2% | 82% |
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| 愤怒 | 厌恶 | 恐惧 | 开心 | 中性 | 伤心 | 惊讶 |
| 愤怒 | 75% | 10% | 2% | 59% | 3% | 2% | 2% |
| 厌恶 | 8% | 45% | 4% | 8% | 16% | 13% | 6% |
| 恐惧 | 5% | 3% | 54% | 5% | 7% | 7% | 18% |
| 开心 | 1% | 1% | 0% | 92% | 4% | 1% | 1% |
| 中性 | 1% | 3% | 1% | 5% | 79% | 8% | 3% |
| 伤心 | 3% | 4% | 0% | 5% | 12% | 75% | 1% |
| 惊讶 | 3% | 2% | 2% | 3% | 6% | 2% | 82% |
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| 愤怒 | 厌恶 | 恐惧 | 开心 | 中性 | 伤心 | 惊讶 |
| 愤怒 | 81% | 5% | 2% | 3% | 6% | 1% | 1% |
| 厌恶 | 8% | 52% | 2% | 7% | 16% | 12% | 3% |
| 恐惧 | 6% | 4% | 50% | 5% | 6% | 12% | 18% |
| 开心 | 0% | 1% | 0% | 94% | 3% | 1% | 1% |
| 中性 | 2% | 2% | 1% | 3% | 85% | 5% | 2% |
| 伤心 | 1% | 2% | 2% | 4% | 8% | 82% | 1% |
| 惊讶 | 2% | 1% | 1% | 2% | 5% | 4% | 84% |
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EmotionNet与GhostNet在RAF-DB数据集混淆矩阵
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| 愤怒 | 厌恶 | 恐惧 | 开心 | 中性 | 伤心 | 惊讶 |
| 愤怒 | 81% | 5% | 2% | 3% | 6% | 1% | 1% |
| 厌恶 | 8% | 52% | 2% | 7% | 16% | 12% | 3% |
| 恐惧 | 6% | 4% | 50% | 5% | 6% | 12% | 18% |
| 开心 | 0% | 1% | 0% | 94% | 3% | 1% | 1% |
| 中性 | 2% | 2% | 1% | 3% | 85% | 5% | 2% |
| 伤心 | 1% | 2% | 2% | 4% | 8% | 82% | 1% |
| 惊讶 | 2% | 1% | 1% | 2% | 5% | 4% | 84% |
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部分被误分类表情示例
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