Question: 
- Encoder: ViT5-base
- Max length: 32
- Pre-Processing: lower, remove special character

Image:
- Encoder: VIT-base
- Pre-Processing: None

OCR:
- Text Detection: Paddle OCR
- Text Recognition: VietOCR
  - Threshold: 0.8
 
- Max length: 128
- Post-processing: group layout, divide=4

Answer:
- Max length: 56

Result:
- Dev:
  - CIDEr: 3.4616
  - BLEU: 0.4689