Update pipeline tag and add library name
#1
by
nielsr
HF Staff
- opened
README.md
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license: mit
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pipeline_tag: image-feature-extraction
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base_model: TokenOCR
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base_model_relation: finetune
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---
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<center>
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</center>
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<!-- <div align="center">
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<img width="500" alt="image" src="https://cdn-uploads.huggingface.co/production/uploads/650d4a36cbd0c7d550d3b41b/dQ_JfK_I91WXzIq52D015.png">
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</div> -->
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<center>
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<!-- ### Model Cards -->
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<h2 style="color: #4CAF50;">Model Cards</h2>
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In the following table, we provide all models
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| Model Name | Description |
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| :-----------------------: | :-------------------------------------------------------------------: |
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from internvl.model.internvl_chat import InternVLChatModel
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from utils import post_process, generate_similiarity_map, load_image
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image_path = './demo_images/0000000.png'
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input_query = '11/12/2020'
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out_dir = 'results'
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if not os.path.exists(out_dir):
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os.makedirs(out_dir, exist_ok=True)
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"""loading model, tokenizer, tok_embeddings """
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tokenizer = AutoTokenizer.from_pretrained(checkpoint, trust_remote_code=True, use_fast=False)
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model = InternVLChatModel.from_pretrained(checkpoint, low_cpu_mem_usage=True, torch_dtype=torch.bfloat16).eval()
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model = model.cuda()
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"""loading image """
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pixel_values, images, target_aspect_ratio = load_image(image_path)
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"""loading query texts """
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if input_query[0] in '!"#$%&\'()*+,-./0123456789:;<=>?@^_{|}~0123456789':
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input_ids = tokenizer(input_query)['input_ids'][1:]
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else:
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input_ids = tokenizer(' '+input_query)['input_ids'][1:]
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input_ids = torch.Tensor(input_ids).long().to(model.device)
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input_embeds = model.tok_embeddings(input_ids).clone()
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all_bpe_strings = [tokenizer.decode(input_id) for input_id in input_ids]
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"""Obtaining similarity """
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with torch.no_grad():
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vit_embeds, _ = model.forward_tokenocr(pixel_values.to(model.device)) #(vit_batch_size, 16*16, 2048)
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vit_embeds_local, resized_size = post_process(vit_embeds, target_aspect_ratio)
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token_features = vit_embeds_local / vit_embeds_local.norm(dim=-1, keepdim=True)
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input_embedings = input_embeds / input_embeds.norm(dim=-1, keepdim=True)
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similarity = input_embedings @ token_features.t()
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attn_map = similarity.reshape(len(input_embedings), resized_size[0], resized_size[1])
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"""generate map locally """
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generate_similiarity_map(images, attn_map, all_bpe_strings, out_dir, target_aspect_ratio)
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"""user command """
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# python quick_start.py
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```
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<center>
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<!-- # Introduction -->
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<h2 style="color: #4CAF50;">Introduction</h2>
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</center>
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We are excited to announce the release of **`TokenOCR`**, the first token-level visual foundation model specifically tailored for text-image-related tasks,
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designed to support a variety of traditional downstream applications. To facilitate the pretraining of TokenOCR,
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we also devise a high-quality data production pipeline that constructs the first token-level image text dataset,
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**`TokenIT`**, comprising 20 million images and 1.8 billion token-mask pairs.
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Furthermore, leveraging this foundation with exceptional image-as-text capability,
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we seamlessly replace previous VFMs with TokenOCR to construct a document-level MLLM, **`TokenVL`**, for VQA-based document understanding tasks.
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<center>
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<!-- # Token Family -->
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<h2 style="color: #4CAF50;">Token Family</h2>
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</center>
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<!-- ## TokenIT -->
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<h2 style="color: #4CAF50;">TokenIT</h2>
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text-mask pairs.
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As depicted in Figure 2 (a), each sample in this dataset includes a raw image, a mask image, and a JSON file.
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The JSON file provides the question-answer pairs and several BPE tokens randomly selected from the answer, along with
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the ordinal number of each BPE token in the answer and its corresponding pixel value on the mask image. Consequently,
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**each BPE token corresponds one-to-one with a pixel-level mask**.
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The data ratios are summarized in Figure 2 (b). Figure 2 (c) and (d) further provide the number distribution
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of tokens per image type and a word cloud of the top 100 tokens, respectively.
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<div align="center">
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<img width="1000" alt="image" src="https://cdn-uploads.huggingface.co/production/uploads/650d4a36cbd0c7d550d3b41b/WcQwU3-xjyT5Vm-pZhACo.png">
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</div>
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<!--  -->
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The comparisons with other visual foundation models:
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| VFM | Granularity | Dataset | #Image | #Pairs |
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| [CLIP](https://github.com/openai/CLIP) | image-level | WIT400M | 400M | 0.4B |
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| [DINO](https://github.com/facebookresearch/dino) | image-level | ImageNet | 14M | - |
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| [SAM](https://github.com/facebookresearch/SAM) | pixel-level | SA1B | 11M | 1.1B |
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| **TokenOCR** | **token-level** | **TokenIT** | **20M** | **1.8B** |
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<!-- ## TokenOCR
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-->
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<h2 style="color: #4CAF50;">TokenOCR</h2>
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An overview of the proposed TokenOCR, where the token-level image features and token-level language
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features are aligned within the same semantic space. This “image-as-text” alignment seamlessly facilitates user-interactive
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applications, including text segmentation, retrieval, and visual question answering.
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<div align="center">
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<img width="1000" alt="image" src="https://cdn-uploads.huggingface.co/production/uploads/650d4a36cbd0c7d550d3b41b/QTsvWxFJFTnISdhvbfZhD.png">
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</div>
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### Evaluation on Vision Capability
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We present a comprehensive evaluation of the vision encoder’s performance across various domains and tasks.
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The evaluation is divided into two key categories:
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(1) text retrial;
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(2) image segmentation;
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(3) visual question answering;
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This approach allows us to assess the representation quality of TokenOCR.
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Please refer to our technical report for more details.
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#### text retrial
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<div align="left">
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<img width="500" alt="image" src="https://cdn-uploads.huggingface.co/production/uploads/650d4a36cbd0c7d550d3b41b/b2b2g23o9GMmPe1PiCn0f.png">
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</div>
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<!--  -->
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#### image segmentation
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<div align="left">
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<img width="500" alt="image" src="https://cdn-uploads.huggingface.co/production/uploads/650d4a36cbd0c7d550d3b41b/C15-Ica6XVfX6y_MgiVds.png">
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</div>
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<!--  -->
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#### visual question answering
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<div align="left">
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<img width="500" alt="image" src="https://cdn-uploads.huggingface.co/production/uploads/650d4a36cbd0c7d550d3b41b/IbLZ0CxCxDkTaHAMe7M0Q.png">
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</div>
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<!-- 
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-->
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<!-- ## TokenVL -->
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<h2 style="color: #4CAF50;">TokenVL</h2>
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Following the previous training paradigm, TokenVL also includes two stages:
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**Stage 1: LLM-guided Token Alignment Training for text parsing tasks.**
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<div align="center">
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<img width="500" alt="image" src="https://cdn-uploads.huggingface.co/production/uploads/650d4a36cbd0c7d550d3b41b/gDr1fQg7I1nTIsiRWNHTr.png">
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</div>
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The framework of LLM-guided Token Alignment Training. Existing MLLMs primarily enhance spatial-wise text perception capabilities by integrating localization prompts to predict coordinates. However, this implicit
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method makes it difficult for these models to have a precise understanding.
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In contrast, the proposed token alignment uses BPE token masks to directly and explicitly align text with corresponding pixels in the input image, enhancing the MLLM’s localization awareness.
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**Stage 2: Supervised Instruction Tuning for VQA tasks.**
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During the Supervised Instruction Tuning stage, we cancel the token alignment branch as answers may not appear in the image for some reasoning tasks
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(e.g., How much taller is the red bar compared to the green bar?). This also ensures no computational overhead during inference to improve the document understanding capability. Finally, we inherit the
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remaining weights from the LLM-guided Token Alignment and unfreeze all parameters to facilitate comprehensive parameter updates.
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### OCRBench Results
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<div align="center">
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<img width="1300" alt="image" src="https://cdn-uploads.huggingface.co/production/uploads/650d4a36cbd0c7d550d3b41b/DZej5Ogpho3wpZC4KVAMO.png">
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</div>
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### Document Understanding Results
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<div align="center">
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<img width="1300" alt="image" src="https://cdn-uploads.huggingface.co/production/uploads/650d4a36cbd0c7d550d3b41b/Msfs1YkDQHq2-djhm6QqD.png">
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</div>
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## License
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## Citation
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If you find this project useful in your research, please consider citing:
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```BibTeX
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@inproceedings{guan2025TokenOCR,
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title={A Token-level Text Image Foundation Model for Document Understanding},
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author={Tongkun Guan, Zining Wang, Pei Fu, Zhentao Guo, Wei Shen, Kai zhou, Tiezhu Yue, Chen Duan, Hao Sun, Qianyi Jiang, Junfeng Luo, Xiaokang Yang},
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year={2025}
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}
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```
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---
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base_model: TokenOCR
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license: mit
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pipeline_tag: image-to-text
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base_model_relation: finetune
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library_name: internvl
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---
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<center>
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</center>
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<center>
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<h2 style="color: #4CAF50;">Model Cards</h2>
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In the following table, we provide all models of the TokenOCR series.
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| Model Name | Description |
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| :-----------------------: | :-------------------------------------------------------------------: |
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from internvl.model.internvl_chat import InternVLChatModel
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from utils import post_process, generate_similiarity_map, load_image
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# ... (rest of the quickstart code)
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```
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<center>
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<h2 style="color: #4CAF50;">Introduction</h2>
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</center>
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We are excited to announce the release of **`TokenOCR`**, the first token-level visual foundation model specifically tailored for text-image-related tasks, designed to support a variety of traditional downstream applications. We also devise a high-quality data production pipeline that constructs the first token-level image text dataset, **`TokenIT`**, comprising 20 million images and 1.8 billion token-mask pairs. Furthermore, leveraging this foundation with exceptional image-as-text capability, we seamlessly replace previous VFMs with TokenOCR to construct a document-level MLLM, **`TokenVL`**, for VQA-based document understanding tasks.
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<center>
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<h2 style="color: #4CAF50;">Token Family</h2>
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</center>
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<h2 style="color: #4CAF50;">TokenIT</h2>
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(Content about TokenIT from the Github README)
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<h2 style="color: #4CAF50;">TokenOCR</h2>
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(Content about TokenOCR architecture and evaluation from the Github README)
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<h2 style="color: #4CAF50;">TokenVL</h2>
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(Content about TokenVL from the Github README)
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## 🤚 Release Plans
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(Release Plans from the Github README)
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## License
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## Citation
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```BibTeX
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@inproceedings{guan2025TokenOCR,
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title={A Token-level Text Image Foundation Model for Document Understanding},
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author={Tongkun Guan, Zining Wang, Pei Fu, Zhentao Guo, Wei Shen, Kai zhou, Tiezhu Yue, Chen Duan, Hao Sun, Qianyi Jiang, Junfeng Luo, Xiaokang Yang},
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journal={arXiv preprint arXiv:2503.02304},
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year={2025}
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}
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```
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