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---
library_name: transformers
datasets:
- laicsiifes/flickr30k-pt-br
language:
- pt
metrics:
- bleu
- rouge
- meteor
- bertscore
base_model: laicsiifes/swin-distilbertimbau
pipeline_tag: image-to-text
model-index:
- name: Swin-DistilBERTimbau
results:
- task:
name: Image Captioning
type: image-to-text
dataset:
name: laicsiifes/flickr30k-pt-br
type: flickr30k-pt-br
split: test
metrics:
- name: Cider-D
type: cider
value: 66.73
- name: BLEU@4
type: bleu
value: 24.65
- name: ROUGE-L
type: rouge
value: 39.98
- name: METEOR
type: meteor
value: 44.71
- name: BERTScore
type: bertscore
value: 72.30
---
# 🎉 Swin-DistilBERTimbau for Brazilian Portuguese Image Captioning
Swin-DistilBERTimbau model trained for image captioning on [Flickr30K Portuguese](https://huggingface.co./datasets/laicsiifes/flickr30k-pt-br) (translated version using Google Translator API)
at resolution 224x224 and max sequence length of 512 tokens.
## 🤖 Model Description
The Swin-DistilBERTimbau is a type of Vision Encoder Decoder which leverage the checkpoints of the [Swin Transformer](https://huggingface.co./microsoft/swin-base-patch4-window7-224)
as encoder and the checkpoints of the [DistilBERTimbau](https://huggingface.co./adalbertojunior/distilbert-portuguese-cased) as decoder.
The encoder checkpoints come from Swin Trasnformer version pre-trained on ImageNet-1k at resolution 224x224.
The code used for training and evaluation is available at: https://github.com/laicsiifes/ved-transformer-caption-ptbr. In this work, Swin-DistilBERTimbau
was trained together with its buddy [Swin-GPorTuguese-2](https://huggingface.co./laicsiifes/swin-gpt2-flickr30k-pt-br).
Other models evaluated didn't achieve performance as high as Swin-DistilBERTimbau and Swin-GPorTuguese-2, namely: DeiT-BERTimbau,
DeiT-DistilBERTimbau, DeiT-GPorTuguese-2, Swin-BERTimbau, ViT-BERTimbau, ViT-DistilBERTimbau and ViT-GPorTuguese-2.
## 🧑💻 How to Get Started with the Model
Use the code below to get started with the model.
```python
import requests
from PIL import Image
from transformers import AutoTokenizer, AutoImageProcessor, VisionEncoderDecoderModel
# load a fine-tuned image captioning model and corresponding tokenizer and image processor
model = VisionEncoderDecoderModel.from_pretrained("laicsiifes/swin-distilbertimbau")
tokenizer = AutoTokenizer.from_pretrained("laicsiifes/swin-distilbertimbau")
image_processor = AutoImageProcessor.from_pretrained("laicsiifes/swin-distilbertimbau")
# perform inference on an image
url = "http://images.cocodataset.org/val2017/000000039769.jpg"
image = Image.open(requests.get(url, stream=True).raw)
pixel_values = image_processor(image, return_tensors="pt").pixel_values
# generate caption
generated_ids = model.generate(pixel_values)
generated_text = tokenizer.batch_decode(generated_ids, skip_special_tokens=True)[0]
print(generated_text)
```
## 📈 Results
The evaluation metrics Cider-D, BLEU@4, ROUGE-L, METEOR and BERTScore
(using [BERTimbau](https://huggingface.co./neuralmind/bert-base-portuguese-cased)) are abbreviated as C, B@4, RL, M and BS, respectively.
|Model|Training|Evaluation|C|B@4|RL|M|BS|
|:---:|:------:|:--------:|:-----:|:----:|:-----:|:----:|:-------:|
|Swin-DistilBERTimbau|Flickr30K Portuguese|Flickr30K Portuguese|66.73|24.65|39.98|44.71|72.30|
|Swin-GPorTuguese-2|Flickr30K Portuguese|Flickr30K Portuguese|64.71|23.15|39.39|44.36|71.70|
## 📋 BibTeX entry and citation info
```bibtex
@inproceedings{bromonschenkel2024comparative,
title = "A Comparative Evaluation of Transformer-Based Vision
Encoder-Decoder Models for Brazilian Portuguese Image Captioning",
author = "Bromonschenkel, Gabriel and Oliveira, Hil{\'a}rio and
Paix{\~a}o, Thiago M.",
booktitle = "Proceedings...",
organization = "Conference on Graphics, Patterns and Images, 37. (SIBGRAPI)",
year = "2024"
}
``` |