We develop an approach to learning visual representations that embraces multimodal data, driven by a combination of intra- and inter-modal similarity preservation objectives. Unlike existing visual pre-training methods, which solve a proxy prediction task in a single domain, our method exploits intrinsic data properties within each modality and semantic information from cross-modal correlation simultaneously, hence improving the quality of learned visual representations. By including multimodal training in a unified framework with different types of contrastive losses, our method can learn more powerful and generic visual features. We first train our model on COCO and evaluate the learned visual representations on various downstream tasks including image classification, object detection, and instance segmentation. For example, the visual representations pre-trained on COCO by our method achieve state-of-the-art top-1 validation accuracy of $55.3\%$ on ImageNet classification, under the common transfer protocol. We also evaluate our method on the large-scale Stock images dataset and show its effectiveness on multi-label image tagging, and cross-modal retrieval tasks.

通过同时利用内部数据属性和跨模态关联的语义信息，开发了一种学习视觉表示形式的方法，其中包括多种类型的对比损失，从而提高了学习到的视觉表示的质量。该方法在COCO数据集上进行训练，可以被用于图像分类、目标检测、实例分割等下游任务，并在ImageNet数据集上实现了55.3%的顶级验证精度。

视觉表征学习的多模态对比训练