可以看到,训练集和测试集来自同一个数据的时候,IBN-a模型的mIoU是能够比原模型ResNet50高4个百分点。而训练集和测试集不同的时候,IBN-b模型更占优势,说明IBN-b能够在跨域的问题上表现更好。 上图的实验还可以证明IBN-a和ResNet50同时在目标域进行fine tuning, IBN-a微调的效果要远远好于ResNet50。 4. 总结...
IBN-Net的三个主要贡献在于其创新性的设计和实现。该模型首次将Batch Normalization(BN)和Instance Normalization(IN)结合,同时提高了模型的学习能力和泛化能力。设计原则是将BN与IN结合,根据网络深度的不同,在浅层网络使用BN和IN联合处理外观差异,在深层网络中使用BN处理主要的特征差异。核心部分包括I...
IBN-ResNet是从《Two at Once: Enhancing Learning and Generalization Capacities via IBN-Net》提出的,作者分别在两种数据集上训练,横坐标是层的索引,纵坐标是基于高斯+KL散度的特征差异。 蓝色柱状图是resnet50在Imagenet和其对应的monet版本,两者之间最大的差异是颜色、亮度等风格类特征,可以看出它们的浅层特征差...
Xingang Pan, Ping Luo, Jianping Shi, Xiaoou Tang."Two at Once: Enhancing Learning and Generalization Capacities via IBN-Net", ECCV2018. Introduction IBN-Net is a CNN model with domain/appearance invariance. It carefully unifies instance normalization and batch normalization in a single deep netwo...
代码地址:https://github.com/XingangPan/IBN-Net 背景介绍 近年来,尽管CNN模型在诸如图像分类、目标检测和语义分割等任务上取得了惊艳的性能,但一个广泛存在的问题是:训练好的CNN模型只适用于特定的task甚至只适用于某一个domain。具体而言,该问题主要有两个表现:1、如果不进行finetune,则将在其他task或者domain上...
This paper designs a novel network IBNC-Net based on IBN-Net and dual pool channel attention module. Firstly, IBN-Net50-a is used as the backbone network to learn the features that do not change with the appearance changes such as image style, color and brightness. Second...
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从IBN-Net到Switchable Whitening 随后,为了更合理地引入外观不变性以及提升模型对不同任务的适应性,我们基于以下因素对IBN-Net进行了拓展: 图像风格迁移领域的学者发现协方差比标准差更好地编码了图像风格信息[5]; 白化(whitening = center + scale + decorrelate)比标准化(standardization = center + scale)有更好...
从IBN-Net到Switchable Whitening 随后,为了更合理地引入外观不变性以及提升模型对不同任务的适应性,我们基于以下因素对IBN-Net进行了拓展: 图像风格迁移领域的学者发现协方差比标准差更好地编码了图像风格信息[5]; 白化(whitening = center + scale + decorrelate)比标准化(standardization = center + scale)有更好...
Convolutional neural networks (CNNs) have achieved great successes in many computer vision problems. Unlike existing works that designed CNN architectures to improve performance on a single task of a single domain and not generalizable, we present IBN-Net, a novel convolutional architecture, which rem...