CRIS: CLIP-Driven Referring Image Segmentation (CVPR2022)

Created by Zhaoqing Wang*, Yu Lu*, Qiang Li*, Xunqiang Tao, Yandong Guo, Mingming Gong and Tongliang Liu

This is an official PyTorch implementation of the CRIS

CLIP-Driven Referring Image Segmentation (CRIS) framework is proposed to transfer the image-level semantic knowledge of the CLIP model to dense pixel-level referring image segmentation. More specifically, we design a vision-language decoder to propagate fine-grained semantic information from textual representations to each pixel-level activation, which promotes consistency between the two modalities. In addition, we present text-to-pixel contrastive learning to explicitly enforce the text feature similar to the related pixel-level features and dissimilar to the irrelevances.

🍻CRIS actives new state-of-the-art performance on RefCOCO, RefCOCO+ and G-Ref with simple framework!



  • 🔧 [Jun 6 ,2022] Pytorch implementation of CRIS are released.
  • ☀️ [March 2 ,2022] Our paper was accepted by CVPR-2022.

Main Results

Main results on RefCOCO

Backbone val test A test B
ResNet50 69.52 72.72 64.70
ResNet101 70.47 73.18 66.10

Main results on RefCOCO+

Backbone val test A test B
ResNet50 61.39 67.10 52.48
ResNet101 62.27 68.08 53.68

Main results on RefCOCO+

Backbone val test
ResNet50 59.35 59.39
ResNet101 59.87 60.36


  1. Environment
    • PyTorch (e.g. 1.10.0)
    • Other dependencies in requirements.txt
  2. Datasets

Quick Start

This implementation only supports multi-gpu, DistributedDataParallel training, which is faster and simpler; single-gpu or DataParallel training is not supported. Besides, the evaluation only supports single-gpu mode.

To do training of CRIS with 8 GPUs, run:

# e.g., Evaluation on the val-set of the RefCOCO dataset
python -u --config config/refcoco/cris_r50.yaml

To do evaluation of CRIS with 1 GPU, run:

# e.g., Evaluation on the val-set of the RefCOCO dataset
      --config config/refcoco/cris_r50.yaml \
      --opts TEST.test_split val-test \
             TEST.test_lmdb datasets/lmdb/refcocog_g/val.lmdb


This project is under the MIT license. See LICENSE for details.


If you find our work useful in your research, please consider citing:

  title={CRIS: CLIP-Driven Referring Image Segmentation},
  author={Wang, Zhaoqing and Lu, Yu and Li, Qiang and Tao, Xunqiang and Guo, Yandong and Gong, Mingming and Liu, Tongliang},
  booktitle={Proceedings of the IEEE/CVF conference on computer vision and pattern recognition},


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