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OpenGVLab/
internimage_s_1k_224

Name: internimage_s_1k_224
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InternImage Model Card

Introduction

InternImage is an advanced vision foundation model developed by researchers from Shanghai AI Laboratory, Tsinghua University, and other institutions. Unlike models based on Transformers, InternImage employs DCNv3 as its core operator. This approach equips the model with dynamic and effective receptive fields required for downstream tasks like object detection and segmentation, while enabling adaptive spatial aggregation.

Performance

InternImage achieved an impressive Top-1 accuracy of 90.1% on the ImageNet benchmark dataset using only publicly available data for image classification. Apart from two undisclosed models trained with additional datasets by Google and Microsoft, InternImage is the only open-source model that achieves a Top-1 accuracy of over 90.0%, and it is also the largest model in scale worldwide.
InternImage outperformed all other models worldwide on the COCO object detection benchmark dataset with a remarkable mAP of 65.5, making it the only model that surpasses 65 mAP in the world.
InternImage also demonstrated world's best performance on 16 other important visual benchmark datasets, covering a wide range of tasks such as classification, detection, and segmentation, making it the top-performing model across multiple domains.

Released Models

Open‑Source Visual Pretrained Models

huggingface name	model name	pretrain	resolution	#param
internimage_l_22k_384	InternImage-L	IN-22K	384x384	223M
internimage_xl_22k_384	InternImage-XL	IN-22K	384x384	335M
internimage_h_jointto22k_384	InternImage-H	Joint 427M -> IN-22K	384x384	1.08B
internimage_g_jointto22k_384	InternImage-G	Joint 427M -> IN-22K	384x384	3B

ImageNet-1K Image Classification

huggingface name	model name	pretrain	resolution	acc@1	#param	FLOPs
internimage_t_1k_224	InternImage-T	IN-1K	224x224	83.5	30M	5G
internimage_s_1k_224	InternImage-S	IN-1K	224x224	84.2	50M	8G
internimage_b_1k_224	InternImage-B	IN-1K	224x224	84.9	97M	16G
internimage_l_22kto1k_384	InternImage-L	IN-22K	384x384	87.7	223M	108G
internimage_xl_22kto1k_384	InternImage-XL	IN-22K	384x384	88.0	335M	163G
internimage_h_22kto1k_640	InternImage-H	Joint 427M -> IN-22K	640x640	89.6	1.08B	1478G
internimage_g_22kto1k_512	InternImage-G	Joint 427M -> IN-22K	512x512	90.1	3B	2700G

DCNv3 CUDA Kernel Installation

If you do not install the CUDA version of DCNv3, InternImage will automatically fall back to a PyTorch implementation. However, the CUDA implementation can significantly reduce GPU memory usage and improve inference efficiency.

Installation Tutorial:

Open your terminal and run:

bash
1git clone https://github.com/OpenGVLab/InternImage.git 2cd InternImage/classification/ops_dcnv3
Make sure you have an available GPU for compilation, then run:

sh make.sh

This will compile the CUDA version of DCNv3. Once installed, InternImage will automatically leverage the optimized CUDA implementation for better performance.

Usage with Transformers

Below are two usage examples for InternImage with the Transformers framework:

Example 1: Using InternImage as an Image Backbone

python

import torch
from PIL import Image
from transformers import AutoModel, CLIPImageProcessor

# Replace 'model_name' with the appropriate model identifier
model_name = "OpenGVLab/internimage_t_1k_224"  # example model

# Prepare the image
image_path = 'img.png'
image_processor = CLIPImageProcessor.from_pretrained(model_name)
image = Image.open(image_path)
image = image_processor(images=image, return_tensors='pt').pixel_values
print('image shape:', image.shape)

# Load the model as a backbone
model = AutoModel.from_pretrained(model_name, trust_remote_code=True)
# 'hidden_states' contains the outputs from the 4 stages of the InternImage backbone
hidden_states = model(image).hidden_states

Example 2: Using InternImage for Image Classification