README.md

Oscar: Object-Semantics Aligned Pre-training for Vision-and-Language Tasks

VinVL: Revisiting Visual Representations in Vision-Language Models

Updates

04/17/2023: Visual instruction tuning with GPT-4 is released! Please check out the multimodal model LLaVA: [Project Page] [Paper] [Demo] [Data] [Model]

05/28/2020: Released finetuned models on downstream tasks, please check MODEL_ZOO.md.
05/15/2020: Released pretrained models, datasets, and code for downstream tasks finetuning.
01/13/2021: our new work VinVL proposed OSCAR+, an improved version of OSCAR, and provided a better object-attribute detection model to extract features for V+L tasks. The VinVL work achieved SOTA performance on all seven V+L tasks here. Please stay tuned for the model and code release.
03/08/2021: Oscar+ pretraining code released, please check the last section in VinVL_MODEL_ZOO.md. All image features and model checkpoints in VinVL are also released. Please check VinVL for details.
04/13/2021: Our Scene Graph Benchmark Repo has been released. Welcome to use the code there to extract image features with VinVL pretrained models.

Introduction

This repository contains source code necessary to reproduce the results presented in the paper Oscar: Object-Semantics Aligned Pre-training for Vision-Language Tasks. We propose a new cross-modal pre-training method Oscar (Object-Semantics Aligned Pre-training). It leverages object tags detected in images as anchor points to significantly ease the learning of image-text alignments. We pre-train Oscar on the public corpus of 6.5 million text-image pairs, and fine-tune it on downstream tasks, creating new state-of-the-arts on six well-established vision-language understanding and generation tasks. For more on this project, see the Microsoft Research Blog post.

Performance

Task	t2i	t2i	i2t	i2t	IC	IC	IC	IC	NoCaps	NoCaps	VQA	NLVR2	GQA
Metric	R@1	R@5	R@1	R@5	B@4	M	C	S	C	S	test-std	test-P	test-std
SoTA_S	39.2	68.0	56.6	84.5	38.9	29.2	129.8	22.4	61.5	9.2	70.92	58.80	63.17
SoTA_B	54.0	80.8	70.0	91.1	40.5	29.7	137.6	22.8	86.58	12.38	73.67	79.30	-
SoTA_L	57.5	82.8	73.5	92.2	41.7	30.6	140.0	24.5	-	-	74.93	81.47	-
-----	---	---	---	---	---	---	---	---	---	---	---	---	---
Oscar_B	54.0	80.8	70.0	91.1	40.5	29.7	137.6	22.8	78.8	11.7	73.44	78.36	61.62
Oscar_L	57.5	82.8	73.5	92.2	41.7	30.6	140.0	24.5	80.9	11.3	73.82	80.05	-
-----	---	---	---	---	---	---	---	---	---	---	---	---	---
VinVL_B	58.1	83.2	74.6	92.6	40.9	30.9	140.6	25.1	92.46	13.07	76.12	83.08	64.65
VinVL_L	58.8	83.5	75.4	92.9	41.0	31.1	140.9	25.2	-	-	76.62	83.98	-
gain	1.3	0.7	1.9	0.6	-0.7	0.5	0.9	0.7	5.9	0.7	1.69	2.51	1.48

t2i: text-to-image retrieval; i2t: image-to-text retrieval; IC: image captioning on COCO.

Download

We released pre-trained models, datasets, VinVL image features, and Oscar+ pretraining corpus for downstream tasks. Please check VinVL_DOWNLOAD.md for details.

To download checkpoints for the Vanilla OSCAR, please check DOWNLOAD.md for details.

Installation

Check INSTALL.md for installation instructions.

Model Zoo

Check MODEL_ZOO.md for scripts to run oscar downstream finetuning.

Check VinVL_MODEL_ZOO.md for scripts to run oscar+ pretraining and downstream finetuning.

Citations

Please consider citing this paper if you use the code:

@article{li2020oscar,
  title={Oscar: Object-Semantics Aligned Pre-training for Vision-Language Tasks},
  author={Li, Xiujun and Yin, Xi and Li, Chunyuan and Hu, Xiaowei and Zhang, Pengchuan and Zhang, Lei and Wang, Lijuan and Hu, Houdong and Dong, Li and Wei, Furu and Choi, Yejin and Gao, Jianfeng},
  journal={ECCV 2020},
  year={2020}
}

@article{zhang2021vinvl,
  title={VinVL: Making Visual Representations Matter in Vision-Language Models},
  author={Zhang, Pengchuan and Li, Xiujun and Hu, Xiaowei and Yang, Jianwei and Zhang, Lei and Wang, Lijuan and Choi, Yejin and Gao, Jianfeng},
  journal={CVPR 2021},
  year={2021}
}

License

Oscar is released under the MIT license. See LICENSE for details.