论文标题
高斯混合物范围内的知识和范围老师的本地化
Crowd Localization from Gaussian Mixture Scoped Knowledge and Scoped Teacher
论文作者
论文摘要
人群本地化是为了预测人群场景中的每个实例头部位置。由于实例到相机的距离是变异的,因此图像中实例尺度之间存在巨大差距,这称为内在量表移动。内在量表转移的核心原因是人群本地化中最重要的问题之一是,它在人群场景中无处不在,并使量表分布混乱。 为此,本文集中于解决内在量表变化所产生的量表分布的混乱。我们提出高斯混合物范围(GMS),以使混沌量表分布正规化。具体而言,GMS利用高斯混合物分布适应尺度分布,并将混合物模型分解为亚正态分布,以使子分布中的混乱正规化。然后,引入了一个对齐方式,以使子分布之间的混乱正规化。但是,尽管GMS有效地将数据分布正规化,但它等同于训练集中的硬样本,这会导致过度拟合。我们断言,它归咎于转移GMS从数据转移到模型的潜在知识的块。因此,提出了一位范围内的老师在知识转换中扮演桥梁的角色。更重要的是,还引入了一致性正规化以实现知识变换。为此,将进一步的限制部署在范围的老师上,以获得教师和学生端之间的特征一致性。 通过在五个主流人群本地化的主流数据集上实施的拟议的GMS和范围的老师,广泛的实验证明了我们工作的优势。此外,与现有的人群定位器相比,我们的工作通过五个数据集全面地通过F1-屈服实现了最先进的功能。
Crowd localization is to predict each instance head position in crowd scenarios. Since the distance of instances being to the camera are variant, there exists tremendous gaps among scales of instances within an image, which is called the intrinsic scale shift. The core reason of intrinsic scale shift being one of the most essential issues in crowd localization is that it is ubiquitous in crowd scenes and makes scale distribution chaotic. To this end, the paper concentrates on access to tackle the chaos of the scale distribution incurred by intrinsic scale shift. We propose Gaussian Mixture Scope (GMS) to regularize the chaotic scale distribution. Concretely, the GMS utilizes a Gaussian mixture distribution to adapt to scale distribution and decouples the mixture model into sub-normal distributions to regularize the chaos within the sub-distributions. Then, an alignment is introduced to regularize the chaos among sub-distributions. However, despite that GMS is effective in regularizing the data distribution, it amounts to dislodging the hard samples in training set, which incurs overfitting. We assert that it is blamed on the block of transferring the latent knowledge exploited by GMS from data to model. Therefore, a Scoped Teacher playing a role of bridge in knowledge transform is proposed. What' s more, the consistency regularization is also introduced to implement knowledge transform. To that effect, the further constraints are deployed on Scoped Teacher to derive feature consistence between teacher and student end. With proposed GMS and Scoped Teacher implemented on five mainstream datasets of crowd localization, the extensive experiments demonstrate the superiority of our work. Moreover, comparing with existing crowd locators, our work achieves state-of-the-art via F1-meansure comprehensively on five datasets.