Add README with dataset documentation and sample GIFs
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README.md
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| 1 |
---
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| 2 |
-
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| 3 |
-
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| 4 |
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- name: video_name
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| 5 |
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dtype: string
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| 6 |
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- name: video
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| 7 |
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dtype: string
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| 8 |
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- name: question
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| 9 |
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dtype: string
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| 10 |
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- name: label
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| 11 |
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dtype: string
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| 12 |
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- name: task
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| 13 |
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dtype: string
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| 14 |
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- name: label_name
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| 15 |
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dtype: string
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| 16 |
-
splits:
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| 17 |
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- name: train
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| 18 |
-
num_bytes: 51960
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| 19 |
-
num_examples: 272
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| 20 |
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download_size: 8816
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| 21 |
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dataset_size: 51960
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| 22 |
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configs:
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| 23 |
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- config_name: default
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| 24 |
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data_files:
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- split: train
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| 26 |
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path: data/train-*
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| 27 |
-
---
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|
| 1 |
+
# CameraBench Binary Evaluation Dataset
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| 2 |
+
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| 3 |
+
A balanced VQA dataset for evaluating camera motion understanding in videos.
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| 4 |
+
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| 5 |
+
## π Dataset Statistics
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| 6 |
+
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| 7 |
+
- **Total Questions**: 232
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| 8 |
+
- **Unique Videos**: 115
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| 9 |
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- **Unique Questions**: 15
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| 10 |
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- **Yes Answers**: 116 (50.0%)
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| 11 |
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- **No Answers**: 116 (50.0%)
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| 12 |
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- **Balance Ratio**: 1.00
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| 13 |
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- **Total Size**: 121.22 MB (0.12 GB)
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- **Average Video Size**: 1.05 MB
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| 15 |
+
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+
## π― Task Categories
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| 17 |
+
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+
This dataset covers various camera motion tasks including:
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| 19 |
+
- **Static**: 44 questions
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| 20 |
+
- **Move In**: 26 questions
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| 21 |
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- **Pan Right**: 25 questions
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| 22 |
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- **Roll Counterclockwise**: 19 questions
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| 23 |
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- **Pan Left**: 17 questions
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| 24 |
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- **Roll Clockwise**: 17 questions
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| 25 |
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- **Move Right**: 16 questions
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| 26 |
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- **Move Out**: 16 questions
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| 27 |
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- **Tilt Down**: 15 questions
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| 28 |
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- **Zoom In**: 14 questions
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| 29 |
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- **Zoom Out**: 14 questions
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| 30 |
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- **Move Up**: 14 questions
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| 31 |
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- **Move Left**: 14 questions
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| 32 |
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- **Tilt Up**: 12 questions
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| 33 |
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- **Move Down**: 9 questions
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| 34 |
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| 35 |
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## π Dataset Format
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| 37 |
+
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| 38 |
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Each record contains:
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| 39 |
+
- `video_name`: Original video filename
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| 40 |
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- `video`: Video file (MP4 format, original quality)
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| 41 |
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- `question`: Binary question about camera motion
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| 42 |
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- `label`: Answer ("Yes" or "No")
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| 43 |
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- `task`: Task category
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- `label_name`: Detailed label identifier
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| 45 |
+
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| 46 |
+
## π¬ Sample Questions and Videos
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| 47 |
+
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| 48 |
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Below are animated GIF previews of sample videos from the dataset:
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| 49 |
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| 50 |
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| 51 |
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| 52 |
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## π Usage
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| 53 |
+
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| 54 |
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### Loading the Dataset
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| 55 |
+
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| 56 |
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```python
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| 57 |
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from datasets import load_dataset
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| 58 |
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| 59 |
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# Load the dataset
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| 60 |
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dataset = load_dataset("cambench_binary_eval")
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| 61 |
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# Access a sample
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| 63 |
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sample = dataset['train'][0]
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print(f"Question: {sample['question']}")
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print(f"Answer: {sample['label']}")
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print(f"Task: {sample['task']}")
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| 67 |
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| 68 |
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# The video field contains the path to download
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| 69 |
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video_file = sample['video']
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| 70 |
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```
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### Downloading Videos
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| 73 |
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| 74 |
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Videos are embedded in the dataset. To download and use them:
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| 75 |
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| 76 |
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```python
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| 77 |
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from datasets import load_dataset
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| 78 |
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import os
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| 79 |
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import shutil
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| 80 |
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| 81 |
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# Load the dataset
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| 82 |
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dataset = load_dataset("cambench_binary_eval")
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| 83 |
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| 84 |
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# Download all videos to a local directory
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| 85 |
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output_dir = "downloaded_videos"
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| 86 |
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os.makedirs(output_dir, exist_ok=True)
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for idx, sample in enumerate(dataset['train']):
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video_name = sample['video_name']
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video_data = sample['video'] # This contains the video file data
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# Save video to local disk
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local_path = os.path.join(output_dir, video_name)
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# If video_data is a file path (during local testing)
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| 96 |
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if isinstance(video_data, str) and os.path.exists(video_data):
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| 97 |
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shutil.copy2(video_data, local_path)
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| 98 |
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else:
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| 99 |
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# Video data from HuggingFace - write bytes to file
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| 100 |
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with open(local_path, 'wb') as f:
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| 101 |
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f.write(video_data)
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| 102 |
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print(f"Downloaded: {video_name} -> {local_path}")
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| 104 |
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| 105 |
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print(f"All {len(dataset['train'])} videos downloaded to {output_dir}/")
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| 106 |
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```
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| 107 |
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### Accessing Individual Videos
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| 109 |
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| 110 |
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To download a specific video by name:
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| 111 |
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| 112 |
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```python
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| 113 |
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from datasets import load_dataset
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| 114 |
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import os
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| 115 |
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| 116 |
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dataset = load_dataset("cambench_binary_eval")
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| 117 |
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| 118 |
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# Find and download a specific video
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| 119 |
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target_video = "your_video_name.mp4"
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| 120 |
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for sample in dataset['train']:
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| 121 |
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if sample['video_name'] == target_video:
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video_data = sample['video']
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| 123 |
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# Save to current directory
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with open(target_video, 'wb') as f:
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f.write(video_data)
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print(f"Downloaded: {target_video}")
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break
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| 130 |
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else:
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print(f"Video {target_video} not found in dataset")
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| 132 |
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```
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| 133 |
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| 134 |
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### Batch Processing
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| 135 |
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| 136 |
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For evaluation tasks:
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| 137 |
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| 138 |
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```python
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| 139 |
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from datasets import load_dataset
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| 140 |
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| 141 |
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dataset = load_dataset("cambench_binary_eval")
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| 142 |
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| 143 |
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correct = 0
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| 144 |
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total = 0
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| 145 |
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| 146 |
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for sample in dataset['train']:
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| 147 |
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video_path = sample['video']
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| 148 |
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question = sample['question']
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| 149 |
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ground_truth = sample['label']
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| 150 |
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| 151 |
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# Your model inference here
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| 152 |
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# prediction = your_model(video_path, question)
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| 153 |
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| 154 |
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# if prediction == ground_truth:
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| 155 |
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# correct += 1
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| 156 |
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# total += 1
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| 157 |
+
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| 158 |
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# accuracy = correct / total if total > 0 else 0
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| 159 |
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# print(f"Accuracy: {accuracy:.2%}")
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| 160 |
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```
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| 161 |
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## π₯ Alternative: Download Full Dataset
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| 163 |
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| 164 |
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To download the entire dataset with all videos at once:
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| 165 |
+
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| 166 |
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```bash
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| 167 |
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# Using huggingface-cli
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| 168 |
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huggingface-cli download cambench_binary_eval --repo-type dataset --local-dir ./cambench_data
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| 169 |
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| 170 |
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# Or using Python
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| 171 |
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from huggingface_hub import snapshot_download
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| 172 |
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snapshot_download(repo_id="cambench_binary_eval", repo_type="dataset", local_dir="./cambench_data")
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| 173 |
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```
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This will download all videos and data files to your local machine.
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| 176 |
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## π Evaluation
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| 178 |
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| 179 |
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This dataset is designed for binary classification tasks. Evaluate your model using:
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| 180 |
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- Accuracy
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| 181 |
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- Precision/Recall
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| 182 |
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- F1 Score
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| 183 |
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- Per-task performance
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| 184 |
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| 185 |
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## π License
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| 186 |
+
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| 187 |
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Please refer to the original CameraBench dataset for licensing information.
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## π Citation
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| 190 |
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| 191 |
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If you use this dataset, please cite the original CameraBench paper.
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## π§ Contact
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| 194 |
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| 195 |
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For questions or issues, please open an issue on the repository.
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| 197 |
---
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| 198 |
+
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**Note**: Videos are provided in MP4 format. Large videos (>50MB) are automatically compressed to ensure smooth downloading and processing. All videos maintain their original temporal dynamics for accurate camera motion evaluation.
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