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README.md
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- ocr
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- codec
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- qwen2vl
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- ocr
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- codec
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- qwen2vl
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---
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# **LatexMind-2B-Codec-GGUF**
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The **LatexMind-2B-Codec-GGUF** model is a fine-tuned version of Qwen2-VL-2B-Instruct, optimized for Optical Character Recognition (OCR), **image-to-text conversion**, and **mathematical expression extraction with LaTeX formatting**. This model integrates a conversational approach with visual and textual understanding to handle multi-modal tasks effectively.
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# Key Enhancements:
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* **SoTA understanding of images with various resolutions & aspect ratios**: LatexMind-2B-Codec-GGUF achieves state-of-the-art performance on visual understanding benchmarks, including MathVista, DocVQA, RealWorldQA, MTVQA, etc.
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* **Advanced LaTeX extraction**: The model specializes in extracting structured mathematical expressions from images and documents, converting them into LaTeX format for precise rendering and further computation.
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* **Understanding long-duration videos (20min+)**: LatexMind-2B-Codec-GGUF can process videos over 20 minutes long, enabling high-quality video-based question answering, mathematical solution explanation, and educational content creation.
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* **Agent capabilities for automated operations**: With complex reasoning and decision-making abilities, the model can be integrated with mobile devices, robots, and assistive technologies to automate tasks based on visual and textual inputs.
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* **Multilingual Support**: To serve global users, in addition to English and Chinese, the model supports text recognition inside images across multiple languages, including European languages, Japanese, Korean, Arabic, Vietnamese, etc.
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This model is particularly effective in **retrieving mathematical notations and equations** from scanned documents, whiteboard images, and handwritten notes, ensuring accurate conversion to LaTeX code for further academic and computational applications.
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# Sample Inference with Doc
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Demo: https://huggingface.co/prithivMLmods/LatexMind-2B-Codec-GGUF/blob/main/latexmind/latexmind-codec.ipynb
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# Use it with Transformers
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```python
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from transformers import Qwen2VLForConditionalGeneration, AutoTokenizer, AutoProcessor
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from qwen_vl_utils import process_vision_info
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# default: Load the model on the available device(s)
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model = Qwen2VLForConditionalGeneration.from_pretrained(
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"prithivMLmods/LatexMind-2B-Codec", torch_dtype="auto", device_map="auto"
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)
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# We recommend enabling flash_attention_2 for better acceleration and memory saving, especially in multi-image and video scenarios.
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# model = Qwen2VLForConditionalGeneration.from_pretrained(
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# "prithivMLmods/LatexMind-2B-Codec-GGUF",
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# torch_dtype=torch.bfloat16,
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# attn_implementation="flash_attention_2",
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# device_map="auto",
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# )
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# default processer
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processor = AutoProcessor.from_pretrained("prithivMLmods/Qwen2-VL-OCR-2B-Instruct")
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messages = [
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{
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"role": "user",
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"content": [
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{
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"type": "image",
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"image": "https://qianwen-res.oss-cn-beijing.aliyuncs.com/Qwen-VL/assets/demo.jpeg",
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},
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{"type": "text", "text": "Describe this image."},
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],
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}
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]
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# Preparation for inference
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text = processor.apply_chat_template(
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messages, tokenize=False, add_generation_prompt=True
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)
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image_inputs, video_inputs = process_vision_info(messages)
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inputs = processor(
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text=[text],
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images=image_inputs,
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videos=video_inputs,
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padding=True,
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return_tensors="pt",
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)
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inputs = inputs.to("cuda")
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# Inference: Generation of the output
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generated_ids = model.generate(**inputs, max_new_tokens=128)
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generated_ids_trimmed = [
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out_ids[len(in_ids) :] for in_ids, out_ids in zip(inputs.input_ids, generated_ids)
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]
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output_text = processor.batch_decode(
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generated_ids_trimmed, skip_special_tokens=True, clean_up_tokenization_spaces=False
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)
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print(output_text)
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```
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# Buf
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```python
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buffer = ""
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for new_text in streamer:
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buffer += new_text
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# Remove <|im_end|> or similar tokens from the output
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buffer = buffer.replace("<|im_end|>", "")
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yield buffer
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```
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# Intended Use
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**LatexMind-2B-Codec-GGUF** is designed for tasks that require **image-based text recognition**, **math equation extraction**, and **multi-modal understanding**. It is particularly useful in the following scenarios:
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**Optical Character Recognition (OCR)** β Extracting printed and handwritten text from images, documents, and scanned pages.
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**Math Expression Recognition** β Converting mathematical notations into structured **LaTeX format** for further computation and documentation.
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**Image-to-Text Conversion** β Generating accurate descriptions for text-rich and math-heavy images.
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**Document and Academic Processing** β Assisting researchers, students, and professionals in digitizing handwritten notes and extracting structured content from books, PDFs, and whiteboards.
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**Automated Educational Support** β Enabling AI-powered tutors, content summarization, and interactive learning for subjects involving complex equations.
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**Multi-Language OCR** β Recognizing text inside images across multiple languages, including English, Chinese, Japanese, Korean, Arabic, and various European languages.
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**Video-Based Question Answering** β Understanding long-duration videos for content summarization, question answering, and structured data extraction.
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# Limitations
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Despite its capabilities, **LatexMind-2B-Codec-GGUF** has some inherent limitations:
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**Handwritten Text Accuracy** β While it can recognize handwritten equations, performance may degrade with highly unstructured or messy handwriting.
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**Complex LaTeX Formatting** β The model may struggle with deeply nested or ambiguous LaTeX expressions, requiring manual corrections for precise formatting.
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**Low-Resolution Images** β Extracting accurate text from blurry or low-resolution images can lead to misinterpretations or OCR errors.
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**Contextual Understanding in Multi-Step Equations** β While it recognizes math expressions, solving multi-step problems autonomously may be limited.
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**Limited Support for Rare Mathematical Notations** β Some specialized or domain-specific symbols may not be recognized with high accuracy.
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**Processing Speed for Large Documents** β Performance may slow down when handling extremely large documents or dense mathematical content in real-time applications.
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**Language-Specific OCR Variability** β While it supports multiple languages, OCR accuracy may vary depending on the script complexity and font style.
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