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	{
  "class_id": [
    24,
    24,
    20,
    9,
    24,
    21,
    23
  ],
  "center_x": [
    0.42033037543296814,
    0.40684738755226135,
    0.4102019965648651,
    0.8572030663490295,
    0.2996465265750885,
    0.3701786398887634,
    0.46116891503334045
  ],
  "center_y": [
    0.4288249909877777,
    0.5549066066741943,
    0.5959123373031616,
    0.6878183484077454,
    0.4863347113132477,
    0.8123582005500793,
    0.5677582621574402
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  "width": [
    0.15408620238304138,
    0.08041947335004807,
    0.07969820499420166,
    0.20102617144584656,
    0.03430929780006409,
    0.11105746775865555,
    0.05579081550240517
  ],
  "height": [
    0.11253717541694641,
    0.03781897574663162,
    0.07199371606111526,
    0.2944275140762329,
    0.045752592384815216,
    0.07555881142616272,
    0.08601664751768112
  ]
} 
 | 
					|
	{
  "class_id": [
    0,
    25,
    9,
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  ],
  "center_x": [
    0.4416853189468384,
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    0.5342592597007751,
    0.2872849702835083,
    0.39365464448928833
  ],
  "center_y": [
    0.595710813999176,
    0.643882691860199,
    0.613823413848877,
    0.6242817640304565,
    0.6875807046890259
  ],
  "width": [
    0.36329224705696106,
    0.08857441693544388,
    0.16942726075649261,
    0.11430184543132782,
    0.1158643439412117
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  "height": [
    0.42154961824417114,
    0.09512879699468613,
    0.19297315180301666,
    0.12143898755311966,
    0.12152087688446045
  ]
} 
 | 
					|
	{
  "class_id": [
    19,
    19,
    23
  ],
  "center_x": [
    0.18125000596046448,
    0.6546875238418579,
    0.639843761920929
  ],
  "center_y": [
    0.535937488079071,
    0.33671873807907104,
    0.5765625238418579
  ],
  "width": [
    0.36250001192092896,
    0.4164062440395355,
    0.5210937261581421
  ],
  "height": [
    0.36250001192092896,
    0.21562500298023224,
    0.3671875
  ]
} 
 | 
					|
	{
  "class_id": [
    0,
    19,
    25
  ],
  "center_x": [
    0.11581955850124359,
    0.028820205479860306,
    0.020278315991163254
  ],
  "center_y": [
    0.5607028603553772,
    0.6123672127723694,
    0.6726053357124329
  ],
  "width": [
    0.23163911700248718,
    0.05764041095972061,
    0.04055663198232651
  ],
  "height": [
    0.25578075647354126,
    0.39035940170288086,
    0.14743492007255554
  ]
} 
 | 
					|
	{
  "class_id": [],
  "center_x": [],
  "center_y": [],
  "width": [],
  "height": []
} 
 | 
					|
	{
  "class_id": [
    21,
    21,
    26
  ],
  "center_x": [
    0.7762748003005981,
    0.44822677969932556,
    0.5020362734794617
  ],
  "center_y": [
    0.47768911719322205,
    0.7146852016448975,
    0.5591151118278503
  ],
  "width": [
    0.4474503695964813,
    0.607123076915741,
    0.18459823727607727
  ],
  "height": [
    0.560287594795227,
    0.5549363493919373,
    0.15213990211486816
  ]
} 
 | 
					|
	{
  "class_id": [
    9,
    14
  ],
  "center_x": [
    0.715624988079071,
    0.550000011920929
  ],
  "center_y": [
    0.9546874761581421,
    0.983593761920929
  ],
  "width": [
    0.12343750149011612,
    0.2734375
  ],
  "height": [
    0.09062500298023224,
    0.03281249850988388
  ]
} 
 | 
					
DIgitial Social Context Objects in VR (DISCOVR): A Social Virtual Reality Object Detection Dataset
Dataset Description
DISCOVR is an object detection dataset for identifying user interface elements and interactive objects in virtual reality (VR) and social VR environments. The dataset contains 17,691 annotated images across 30 object classes commonly found in 17 top social VR applications & VR demos.
This dataset is designed to support research in VR accessibility, automatic UI analysis, and assistive technologies for virtual environments.
The entire dataset is available to download at once at https://huggingface.co/datasets/UWMadAbility/DISCOVR/blob/main/dataset.zip
Pretrained YOLOv8 weights are available at https://huggingface.co/UWMadAbility/VRSight
If you use DISCOVR in your work, please cite our work VRSight for which it was developed:
@inproceedings{killough2025vrsight,
  title={VRSight: An AI-Driven Scene Description System to Improve Virtual Reality Accessibility for Blind People},
  author={Killough, Daniel and Feng, Justin and Ching, Zheng Xue and Wang, Daniel and Dyava, Rithvik and Tian, Yapeng and Zhao, Yuhang},
  booktitle={Proceedings of the 38th Annual ACM Symposium on User Interface Software and Technology},
  pages={1--17},
  year={2025}
}
Dataset Summary
- Total Images: 17,691
- Training: 15,207 images
 - Validation: 1,645 images
 - Test: 839 images
 
 - Classes: 30 object categories
 - Format: YOLOv8
 - License: CC BY 4.0
 
Object Classes
The dataset includes 30 classes of VR UI elements and interactive objects:
| ID | Class Name | Description | 
|---|---|---|
| 0 | avatar | User representations (human avatars) | 
| 1 | avatar-nonhuman | Non-human avatar representations | 
| 2 | button | Interactive buttons | 
| 3 | campfire | Campfire objects (social gathering points) | 
| 4 | chat box | Text chat interface elements | 
| 5 | chat bubble | Speech/thought bubbles | 
| 6 | controller | VR controller representations | 
| 7 | dashboard | VR OS dashboard | 
| 8 | guardian | Boundary/guardian system indicators (blue grid/plus signs) | 
| 9 | hand | Hand representations | 
| 10 | hud | Heads-up display elements | 
| 11 | indicator-mute | Mute status indicators | 
| 12 | interactable | Generic interactable objects | 
| 13 | locomotion-target | Movement/teleportation targets | 
| 14 | menu | Menu interfaces | 
| 15 | out of bounds | Out-of-bounds warnings (red circle) | 
| 16 | portal | Portal/doorway objects | 
| 17 | progress bar | Progress indicators | 
| 18 | seat-multiple | Multi-person seating | 
| 19 | seat-single | Single-person seating | 
| 20 | sign-graphic | Graphical signs | 
| 21 | sign-text | Text-based signs | 
| 22 | spawner | Object spawning points | 
| 23 | table | Tables and surfaces | 
| 24 | target | Target/aim points | 
| 25 | ui-graphic | Graphical UI elements | 
| 26 | ui-text | Text UI elements | 
| 27 | watch | Watch/time displays | 
| 28 | writing surface | Whiteboards/drawable surfaces | 
| 29 | writing utensil | Drawing/writing tools | 
Dataset Structure
DISCOVR/
βββ train/
β   βββ images/        # 15,207 training images (.jpg)
β   βββ labels/        # YOLO format annotations (.txt)
βββ validation/
β   βββ images/        # 1,645 validation images
β   βββ labels/        # YOLO format annotations
βββ test/
β   βββ images/        # 839 test images
β   βββ labels/        # YOLO format annotations
βββ data.yaml          # Dataset configuration file
Annotation Format
Annotations are in YOLO format with normalized coordinates:
<class_id> <center_x> <center_y> <width> <height>
All coordinates are normalized to [0, 1] range relative to image dimensions.
Usage
With Hugging Face Datasets
from datasets import load_dataset
# Load the full dataset
dataset = load_dataset("UWMadAbility/DISCOVR")
# Access individual splits
train_data = dataset['train']
val_data = dataset['validation']
test_data = dataset['test']
# Example: Get first training image and its annotations
sample = train_data[0]
image = sample['image']
objects = sample['objects']
print(f"Number of objects: {len(objects['class_id'])}")
print(f"Class IDs: {objects['class_id']}")
print(f"Bounding boxes: {list(zip(objects['center_x'], objects['center_y'], objects['width'], objects['height']))}")
With YOLOv8/Ultralytics
First, download the dataset and create a data.yaml file:
path: ./DISCOVR
train: train/images
val: validation/images
test: test/images
nc: 30
names:
  0: avatar
  1: avatar-nonhuman
  2: button
  3: campfire
  4: chat box
  5: chat bubble
  6: controller
  7: dashboard
  8: guardian
  9: hand
  10: hud
  11: indicator-mute
  12: interactable
  13: locomotion-target
  14: menu
  15: out of bounds
  16: portal
  17: progress bar
  18: seat-multiple
  19: seat-single
  20: sign-graphic
  21: sign-text
  22: spawner
  23: table
  24: target
  25: ui-graphic
  26: ui-text
  27: watch
  28: writing surface
  29: writing utensil
Then train a model:
from ultralytics import YOLO
# Load a pretrained model
model = YOLO('yolov8n.pt')
# Train the model
results = model.train(
    data='data.yaml',
    epochs=100,
    imgsz=640,
    batch=16
)
# Validate the model
metrics = model.val()
# Make predictions
results = model.predict('path/to/vr_image.jpg')
With Transformers (DETR, etc.)
from datasets import load_dataset
from transformers import AutoImageProcessor, AutoModelForObjectDetection
# Load dataset
dataset = load_dataset("UWMadAbility/DISCOVR")
# Load model and processor
processor = AutoImageProcessor.from_pretrained("facebook/detr-resnet-50")
model = AutoModelForObjectDetection.from_pretrained("facebook/detr-resnet-50")
# Process image
sample = dataset['train'][0]
inputs = processor(images=sample['image'], return_tensors="pt")
# Note: You'll need to convert YOLO format to COCO format for DETR
# YOLO: (center_x, center_y, width, height) normalized
# COCO: (x_min, y_min, width, height) in pixels
Applications
This dataset can be used for:
- VR Accessibility Research: Automatically detecting and describing UI elements for users with disabilities
 - UI/UX Analysis: Analyzing VR interface design patterns
 - Assistive Technologies: Building screen readers and navigation aids for VR
 - Automatic Testing: Testing VR applications for UI consistency
 - Content Moderation: Detecting inappropriate content in social VR spaces
 - User Behavior Research: Understanding how users interact with VR interfaces
 
Citation
If you use this dataset in your research, please cite our publication using DISCOVR, called VRSight:
@inproceedings{killough2025vrsight,
  title={VRSight: An AI-Driven Scene Description System to Improve Virtual Reality Accessibility for Blind People},
  author={Killough, Daniel and Feng, Justin and Ching, Zheng Xue and Wang, Daniel and Dyava, Rithvik and Tian, Yapeng and Zhao, Yuhang},
  booktitle={Proceedings of the 38th Annual ACM Symposium on User Interface Software and Technology},
  pages={1--17},
  year={2025}
}
License
This dataset is released under the Creative Commons Attribution 4.0 International (CC BY 4.0) license.
You are free to:
- Share β copy and redistribute the material
 - Adapt β remix, transform, and build upon the material
 
Under the following terms:
- Attribution β You must give appropriate credit
 
Contact
For questions, issues, or collaborations:
- Main Codebase: https://github.com/MadisonAbilityLab/VRSight
 - This Repository: UWMadAbility/DISCOVR
 - Organization: UW-Madison Ability Lab
 
Acknowledgments
This dataset was created by Daniel K., Justin, Daniel W., ZX, Ricky, Abhinav, and the MadAbility Lab at the University of Wisconsin-Madison to support research in VR accessibility and assistive technologies.
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