Reversible Column Networks
This repo is the official implementation of:
Reversible Column Networks
Yuxuan Cai, Yizhuang Zhou, Qi Han, Jianjian Sun, Xiangwen Kong, Jun Li, Xiangyu Zhang \ MEGVII Technology\ International Conference on Learning Representations (ICLR) 2023\ [arxiv]
RevColV2: Exploring Disentangled Representations in Masked Image Modeling
Qi Han, Yuxuan Cai, Xiangyu Zhang \ MEGVII Technology\ [arxiv]
Updates
**9/06/2023***\ RevColv2 will be released soon!
**3/15/2023***\ RevCol Huge checkpoint for segmentation released! Add visualization tools.
**3/9/2023***\ Detection, Segmentation Code and Model Weights Released.
2/10/2023\ RevCol model weights released.
1/21/2023\ RevCol was accepted by ICLR 2023!
12/23/2022\ Initial commits: codes for ImageNet-1k and ImageNet-22k classification are released.
To Do List
- [x] ImageNet-1K and 22k Training Code
- [x] ImageNet-1K and 22k Model Weights
- [x] Cascade Mask R-CNN COCO Object Detection Code & Model Weights
- [x] ADE20k Semantic Segmentation Code & Model Weights
Introduction
RevCol is composed of multiple copies of subnetworks, named columns respectively, between which multi-level reversible connections are employed. RevCol coud serves as a foundation model backbone for various tasks in computer vision including classification, detection and segmentation.
Main Results on ImageNet with Pre-trained Models
| name | pretrain | resolution | #params | FLOPs | acc@1 | pretrained model | finetuned model |
|---|---|---|---|---|---|---|---|
| RevCol-T | ImageNet-1K | 224x224 | 30M | 4.5G | 82.2 | baidu/github | - |
| RevCol-S | ImageNet-1K | 224x224 | 60M | 9.0G | 83.5 | baidu/github | - |
| RevCol-B | ImageNet-1K | 224x224 | 138M | 16.6G | 84.1 | baidu/github | - |
| RevCol-B* | ImageNet-22K | 224x224 | 138M | 16.6G | 85.6 | baidu/github | baidu/github |
| RevCol-B* | ImageNet-22K | 384x384 | 138M | 48.9G | 86.7 | baidu/github | baidu/github |
| RevCol-L* | ImageNet-22K | 224x224 | 273M | 39G | 86.6 | baidu/github | baidu/github |
| RevCol-L* | ImageNet-22K | 384x384 | 273M | 116G | 87.6 | baidu/github | baidu/github |
| RevCol-H*+ | Megdata-168M | pretrain 224 / finetune 640 | 2.1B | 2537 | 90.0 | huggingface | huggingface |
[+]: Note that we use a slightly different model on RevCol-H with one more branch from the bottom level to the top one. Later experiments prove that this connection is unnecessary, however, consider RevCol-H's training cost, we do not retrain it.
Getting Started
Please refer to INSTRUCTIONS.md for setting up, training and evaluation details.
Acknowledgement
This repo was inspired by several open source projects. We are grateful for these excellent projects and list them as follows:
License
RevCol is released under the Apache 2.0 license.
Contact Us
If you have any questions about this repo or the original paper, please contact Yuxuan at caiyuxuan@megvii.com.
Citation
@inproceedings{cai2022reversible,
title={Reversible Column Networks},
author={Cai, Yuxuan and Zhou, Yizhuang and Han, Qi and Sun, Jianjian and Kong, Xiangwen and Li, Jun and Zhang, Xiangyu},
booktitle={International Conference on Learning Representations},
year={2023},
url={https://openreview.net/forum?id=Oc2vlWU0jFY}
}