四川大学电气工程学院
纸质出版:2024
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向成豪, 郑秀娟, 庄嘉良, 等. 融合人脸图像深度和外观特征的BMI估计方法[J]. 传感器与微系统, 2024,(1):135-138+144.
向成豪, 郑秀娟, 庄嘉良, 等. 融合人脸图像深度和外观特征的BMI估计方法[J]. 传感器与微系统, 2024,(1):135-138+144. DOI: 10.13873/J.1000-9787(2024)01-0135-04.
身体质量指数(BMI)是人类健康重要指标。从2D正脸图像中估计3D人脸信息并提出一个端到端BMI估计框架,以进一步提高BMI估计性能。首先,计算人脸468个3D关键点,并根据关键点相对头部质心的深度绘制深度人脸图;其次,提取人脸图像的方向梯度直方图(HOG)并可视化以表示外观特征;最后,利用卷积神经网络(CNN)VGGNet、ResNet分别对深度人脸图和HOG进行特征提取,并使用Hadamard积融合2个骨干网络的特征以估计BMI。与目前已有方法的对比实验中,本文提出方法在2个公开数据集上的整体平均绝对误差(MAE)分别比最优结果低0.38和1。上述实验结果证明了本文提出的融合3D人脸图像深度和外观特征的BMI估计方法的有效性。
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