Florence-2-large-ft Open-source Vision Model - Free Deployment for Vision and Vision-Language Tasks

Florence 2 Large Ft

Developed by zhangfaen

Florence-2 is an advanced vision foundation model developed by Microsoft, employing a prompt-based paradigm to handle various vision and vision-language tasks.

Image-to-Text

Transformers

Open Source License:MIT #Unified Model for Multiple Vision Tasks #Zero-shot Learning #Image Caption Generation

Downloads 14

Release Time : 7/2/2024

Model Overview

Florence-2 is a unified visual representation model capable of performing multiple vision tasks such as image captioning, object detection, and segmentation through simple text prompts. The model is trained on the FLD-5B dataset containing 126 million images and 5.4 billion annotations via multi-task learning.

Model Features

Unified Multi-task Processing

Handles multiple vision tasks through simple text prompts without requiring specialized architectures for different tasks.

Large-scale Pretraining

Trained on the FLD-5B dataset containing 126 million images and 5.4 billion annotations.

Zero-shot Capability

Performs well on unseen tasks, reducing dependency on task-specific data.

Fine-grained Visual Understanding

Capable of generating detailed image descriptions and precisely locating objects and regions within images.

Model Capabilities

Image Caption Generation

Object Detection

Image Segmentation

Text Recognition

Visual Question Answering

Region Proposal

Dense Region Description

Phrase Grounding

Use Cases

Computer Vision

Intelligent Image Analysis

Automatically generates detailed descriptions and content analysis of images.

Achieves a CIDEr score of 135.6 on COCO caption test.

Object Detection

Identifies objects and their locations within images.

Achieves an mAP of 37.5 on COCO detection validation.

Document Processing

Document Image Understanding

Recognizes and extracts text and structure from document images.

Assistive Technology

Visual Assistance

Provides image content descriptions for visually impaired individuals.

🚀 Florence-2: Advancing a Unified Representation for a Variety of Vision Tasks

Florence-2 is an advanced vision foundation model that uses a prompt-based approach to handle a wide range of vision and vision-language tasks.

🚀 Quick Start

Use the code below to get started with the model.

import requests

from PIL import Image
from transformers import AutoProcessor, AutoModelForCausalLM 

model = AutoModelForCausalLM.from_pretrained("microsoft/Florence-2-large-ft", trust_remote_code=True)
processor = AutoProcessor.from_pretrained("microsoft/Florence-2-large-ft", trust_remote_code=True)

prompt = "<OD>"

url = "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/transformers/tasks/car.jpg?download=true"
image = Image.open(requests.get(url, stream=True).raw)

inputs = processor(text=prompt, images=image, return_tensors="pt")

generated_ids = model.generate(
    input_ids=inputs["input_ids"],
    pixel_values=inputs["pixel_values"],
    max_new_tokens=1024,
    do_sample=False,
    num_beams=3
)
generated_text = processor.batch_decode(generated_ids, skip_special_tokens=False)[0]

parsed_answer = processor.post_process_generation(generated_text, task="<OD>", image_size=(image.width, image.height))

print(parsed_answer)

✨ Features

This is a copy of Microsoft's model with a few fixes. The PRs for the fixes are open on the original model but until they merge I'm using this one to have everything set up correctly.

This Hub repository contains a HuggingFace's transformers implementation of Florence-2 model from Microsoft.

Florence-2 is an advanced vision foundation model that uses a prompt-based approach to handle a wide range of vision and vision-language tasks. Florence-2 can interpret simple text prompts to perform tasks like captioning, object detection, and segmentation. It leverages our FLD-5B dataset, containing 5.4 billion annotations across 126 million images, to master multi-task learning. The model's sequence-to-sequence architecture enables it to excel in both zero-shot and fine-tuned settings, proving to be a competitive vision foundation model.

Resources and Technical Documentation:

Property	Details
Model Type	Florence-2 is an advanced vision foundation model using a prompt-based approach.
Training Data	It leverages the FLD - 5B dataset, containing 5.4 billion annotations across 126 million images.

Model	Model size	Model Description
Florence-2-base[HF]	0.23B	Pretrained model with FLD-5B
Florence-2-large[HF]	0.77B	Pretrained model with FLD-5B
Florence-2-base-ft[HF]	0.23B	Finetuned model on a colletion of downstream tasks
Florence-2-large-ft[HF]	0.77B	Finetuned model on a colletion of downstream tasks

💻 Usage Examples

Basic Usage

import requests

from PIL import Image
from transformers import AutoProcessor, AutoModelForCausalLM 

model = AutoModelForCausalLM.from_pretrained("microsoft/Florence-2-large-ft", trust_remote_code=True)
processor = AutoProcessor.from_pretrained("microsoft/Florence-2-large-ft", trust_remote_code=True)

prompt = "<OD>"

url = "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/transformers/tasks/car.jpg?download=true"
image = Image.open(requests.get(url, stream=True).raw)

inputs = processor(text=prompt, images=image, return_tensors="pt")

generated_ids = model.generate(
    input_ids=inputs["input_ids"],
    pixel_values=inputs["pixel_values"],
    max_new_tokens=1024,
    do_sample=False,
    num_beams=3
)
generated_text = processor.batch_decode(generated_ids, skip_special_tokens=False)[0]

parsed_answer = processor.post_process_generation(generated_text, task="<OD>", image_size=(image.width, image.height))

print(parsed_answer)

Advanced Usage

This model is capable of performing different tasks through changing the prompts.

First, let's define a function to run a prompt.

Click to expand

import requests

from PIL import Image
from transformers import AutoProcessor, AutoModelForCausalLM 

model = AutoModelForCausalLM.from_pretrained("microsoft/Florence-2-large-ft", trust_remote_code=True)
processor = AutoProcessor.from_pretrained("microsoft/Florence-2-large-ft", trust_remote_code=True)

url = "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/transformers/tasks/car.jpg?download=true"
image = Image.open(requests.get(url, stream=True).raw)

def run_example(task_prompt, text_input=None):
    if text_input is None:
        prompt = task_prompt
    else:
        prompt = task_prompt + text_input
    inputs = processor(text=prompt, images=image, return_tensors="pt")
    generated_ids = model.generate(
      input_ids=inputs["input_ids"],
      pixel_values=inputs["pixel_values"],
      max_new_tokens=1024,
      num_beams=3
    )
    generated_text = processor.batch_decode(generated_ids, skip_special_tokens=False)[0]

    parsed_answer = processor.post_process_generation(generated_text, task=task_prompt, image_size=(image.width, image.height))

    print(parsed_answer)

Here are the tasks Florence-2 could perform:

Click to expand

Caption

prompt = "<CAPTION>"
run_example(prompt)

Detailed Caption

prompt = "<DETAILED_CAPTION>"
run_example(prompt)

More Detailed Caption

prompt = "<MORE_DETAILED_CAPTION>"
run_example(prompt)

Caption to Phrase Grounding

caption to phrase grounding task requires additional text input, i.e. caption.

Caption to phrase grounding results format: {'<CAPTION_TO_PHRASE_GROUNDING>': {'bboxes': [[x1, y1, x2, y2], ...], 'labels': ['', '', ...]}}

task_prompt = "<CAPTION_TO_PHRASE_GROUNDING>"
results = run_example(task_prompt, text_input="A green car parked in front of a yellow building.")

Object Detection

OD results format: {'<OD>': {'bboxes': [[x1, y1, x2, y2], ...], 'labels': ['label1', 'label2', ...]} }

prompt = "<OD>"
run_example(prompt)

Dense Region Caption

Dense region caption results format: {'<DENSE_REGION_CAPTION>' : {'bboxes': [[x1, y1, x2, y2], ...], 'labels': ['label1', 'label2', ...]} }

prompt = "<DENSE_REGION_CAPTION>"
run_example(prompt)

Region proposal

Dense region caption results format: {'<REGION_PROPOSAL>': {'bboxes': [[x1, y1, x2, y2], ...], 'labels': ['', '', ...]}}

prompt = "<REGION_PROPOSAL>"
run_example(prompt)

OCR

prompt = "<OCR>"
run_example(prompt)

OCR with Region

OCR with region output format: {'<OCR_WITH_REGION>': {'quad_boxes': [[x1, y1, x2, y2, x3, y3, x4, y4], ...], 'labels': ['text1', ...]}}

prompt = "<OCR_WITH_REGION>"
run_example(prompt)

for More detailed examples, please refer to notebook

📚 Documentation

Florence-2 Zero-shot performance

The following table presents the zero-shot performance of generalist vision foundation models on image captioning and object detection evaluation tasks. These models have not been exposed to the training data of the evaluation tasks during their training phase.

Method	#params	COCO Cap. test CIDEr	NoCaps val CIDEr	TextCaps val CIDEr	COCO Det. val2017 mAP
Flamingo	80B	84.3	-	-	-
Florence-2-base	0.23B	133.0	118.7	70.1	34.7
Florence-2-large	0.77B	135.6	120.8	72.8	37.5

The following table continues the comparison with performance on other vision-language evaluation tasks.

Method	Flickr30k test R@1	Refcoco val Accuracy	Refcoco test-A Accuracy	Refcoco test-B Accuracy	Refcoco+ val Accuracy	Refcoco+ test-A Accuracy	Refcoco+ test-B Accuracy	Refcocog val Accuracy	Refcocog test Accuracy	Refcoco RES val mIoU
Kosmos-2	78.7	52.3	57.4	47.3	45.5	50.7	42.2	60.6	61.7	-
Florence-2-base	83.6	53.9	58.4	49.7	51.5	56.4	47.9	66.3	65.1	34.6
Florence-2-large	84.4	56.3	61.6	51.4	53.6	57.9	49.9	68.0	67.0	35.8

Florence-2 finetuned performance

We finetune Florence-2 models with a collection of downstream tasks, resulting two generalist models Florence-2-base-ft and Florence-2-large-ft that can conduct a wide range of downstream tasks.

The table below compares the performance of specialist and generalist models on various captioning and Visual Question Answering (VQA) tasks. Specialist models are fine-tuned specifically for each task, whereas generalist models are fine-tuned in a task-agnostic manner across all tasks. The symbol "▲" indicates the usage of external OCR as input.

Method	# Params	COCO Caption Karpathy test CIDEr	NoCaps val CIDEr	TextCaps val CIDEr	VQAv2 test-dev Acc	TextVQA test-dev Acc	VizWiz VQA test-dev Acc
Specialist Models
CoCa	2.1B	143.6	122.4	-	82.3	-	-
BLIP-2	7.8B	144.5	121.6	-	82.2	-	-
GIT2	5.1B	145.0	126.9	148.6	81.7	67.3	71.0
Flamingo	80B	138.1	-	-	82.0	54.1	65.7
PaLI	17B	149.1	127.0	160.0▲	84.3	58.8 / 73.1▲	71.6 / 74.4▲
PaLI-X	55B	149.2	126.3	147.0 / 163.7▲	86.0	71.4 / 80.8▲	70.9 / 74.6▲
Generalist Models
Unified-IO	2.9B	-	100.0	-	77.9	-	57.4
Florence-2-base-ft	0.23B	140.0	116.7	143.9	79.7	63.6	63.6
Florence-2-large-ft	0.77B	143.3	124.9	151.1	81.7	73.5	72.6

Method	# Params	COCO Det. val2017 mAP	Flickr30k test R@1	RefCOCO val Accuracy	RefCOCO test-A Accuracy	RefCOCO test-B Accuracy	RefCOCO+ val Accuracy	RefCOCO+ test-A Accuracy	RefCOCO+ test-B Accuracy	RefCOCOg val Accuracy	RefCOCOg test Accuracy	RefCOCO RES val mIoU
Specialist Models
SeqTR	-	-	-	83.7	86.5	81.2	71.5	76.3	64.9	74.9	74.2	-
PolyFormer	-	-	-	90.4	92.9	87.2	85.0	89.8	78.0	85.8	85.9	76.9
UNINEXT	0.74B	60.6	-	92.6	94.3	91.5	85.2	89.6	79.8	88.7	89.4	-
Ferret	13B	-	-	89.5	92.4	84.4	82.8	88.1	75.2	85.8	86.3	-
Generalist Models

📄 License

This model is licensed under the MIT License.

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