---
license: cc-by-nc-4.0
language:
  - isl
tags:
  - sign-language
  - indian-sign-language
  - fingerspelling
size_categories:
  - 1K<n<10K
pretty_name: ISL Fingerspelling Dataset
---

# ISL Fingerspelling Dataset

First continuous fingerspelling dataset for Indian Sign Language (ISL).

**Paper**: "Continuous Fingerspelling Dataset for Indian Sign Language" (WSLP @ AACL-IJCNLP 2025)

## Statistics

| Segments | Duration | Characters |
|----------|----------|------------|
| 1,308 | 70.85 min | 14,814 |

## Structure

```
├── videos/                        # 1308 mp4 files
├── fingerspelling_annotations.csv # Segment annotations
└── localization_timestamps.csv    # Temporal localization in source videos
```

### fingerspelling_annotations.csv

Maps video segments to their transcriptions.

| Column | Description |
|--------|-------------|
| uid | Unique segment ID (`{video_id}_seg{index}_signer`) |
| text | Fingerspelled text |

### localization_timestamps.csv

Contains temporal boundaries of fingerspelling segments in the original YouTube videos.

| Column | Description |
|--------|-------------|
| video_id | YouTube video ID |
| segment_index | Segment index within the video |
| start_time | Start timestamp (HH:MM:SS.mmm) |
| start_sec | Start time in seconds |
| end_time | End timestamp (HH:MM:SS.mmm) |
| end_sec | End time in seconds |
| duration_str | Duration (HH:MM:SS.mmm) |
| duration_sec | Duration in seconds |
| transcript | Fingerspelled text |

## Citation

```bibtex
@inproceedings{kirandevraj2025islfingerspelling,
  title={Continuous Fingerspelling Dataset for Indian Sign Language},
  author={Kirandevraj, R and Kurmi, Vinod K and Namboodiri, Vinay P and Jawahar, CV},
  booktitle={WSLP @ AACL-IJCNLP},
  year={2025}
}
```

## Contact

kirandevraj.r@research.iiit.ac.in

## Project Page

https://kirandevraj.github.io/ISL-Fingerspelling