Information Technology Center, Chengdu Sport University, Chengdu 610041, China.
Education and Information Technology Center, China West Normal University, Nanchong 637002, China.
Comput Intell Neurosci. 2022 Jan 5;2022:6205108. doi: 10.1155/2022/6205108. eCollection 2022.
The existing face detection methods were affected by the network model structure used. Most of the face recognition methods had low recognition rate of face key point features due to many parameters and large amount of calculation. In order to improve the recognition accuracy and detection speed of face key points, a real-time face key point detection algorithm based on attention mechanism was proposed in this paper. Due to the multiscale characteristics of face key point features, the deep convolution network model was adopted, the attention module was added to the VGG network structure, the feature enhancement module and feature fusion module were combined to improve the shallow feature representation ability of VGG, and the cascade attention mechanism was used to improve the deep feature representation ability. Experiments showed that the proposed algorithm not only can effectively realize face key point recognition but also has better recognition accuracy and detection speed than other similar methods. This method can provide some theoretical basis and technical support for face detection in complex environment.
现有的人脸检测方法受所使用的网络模型结构的影响。由于参数多、计算量大,大多数人脸识别方法对面部关键点特征的识别率较低。为了提高人脸关键点的识别精度和检测速度,本文提出了一种基于注意力机制的实时人脸关键点检测算法。由于人脸关键点特征具有多尺度的特点,采用了深度卷积网络模型,在 VGG 网络结构中加入了注意力模块,结合特征增强模块和特征融合模块,提高了 VGG 的浅层特征表示能力,利用级联注意力机制提高了深层特征表示能力。实验表明,该算法不仅可以有效地实现人脸关键点识别,而且比其他类似方法具有更好的识别精度和检测速度。该方法可为复杂环境下的人脸检测提供一定的理论依据和技术支持。