Datasets

Inspection photos, Entrance Observer videos, metrics, tracks, and external bee datasets from Gratheon field work.

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Field data from Gratheon inspections and Entrance Observer cameras. Files are large, so the archive lives on Google Drive rather than on this site.

Open Google Drive archive Entrance Observer product

Photos

Manual inspection photos of beehive frames. JPG, about 15 MP, no annotations. Years: 2019, 2020, 2021, 2024.

Download photos
Example unannotated beehive frame photo from a hive inspection
Example frame photo, re-compressed as WebP for the web.

Entrance videos

Hive-entrance footage from the Entrance Observer. 2025 clips were encoded on the edge device; later days change zoom and camera placement.

2025 encoding

Container
MP4 (isom)
Codec
MPEG-4 Visual, yuv420p
Frame size
1280 × 720
Frame rate
15 fps
Typical chunk
30 min, 5-25 MB
File names
UTC timestamps
Raw ffmpeg probe from an example clip 
Input #0
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2mp41
    encoder         : Lavf59.27.100
  Duration: 00:00:30.03, start: 0.000000, bitrate: 14927 kb/s
  Stream #0:0[0x1](und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 14926 kb/s, 15.02 fps, 15.02 tbr, 12016 tbn (default)

Type 1 · 40 cm landing board

Sunny days, about 40 cm of landing board in frame. Some chunks include a pair with a _detect.mp4 suffix showing YOLOv8 overlays.

4 September 2025

  • Paired detection overlays on some chunks
  • 5-25 MB per MP4 chunk
Google Drive
Example clip, re-encoded with ffmpeg for the web. Download MP4

Type 2 · 23 cm landing board

Tighter zoom from 12:00 EEST on 7 September. Same 1280×720, 15 fps, 30 min chunks.

9 September 2025

  • ~3 h (12:00-15:00 EEST)
  • No Drive folder published yet

Type 3 · closer second-box camera

Camera on the second hive box, closer to the bees. Zoom changed; glass and aluminium boundaries removed and replaced with stones.

11 September 2025

  • Rainy day, very little activity
  • No Drive folder published yet

13 September 2025

  • Rainy day
  • No Drive folder published yet

14 September 2025

  • Cloudy day
  • No Drive folder published yet

Earlier seasons

19 May 2024

  • 640×480, 10 s chunks
  • White background, strong shadows
  • ~1 h total, 1.1 GB
Google Drive

18-20 July 2023

  • Small test set for neural-network detection
  • 3840×2160, mixed camera positions and lengths
Google Drive

External datasets

Public sets we use or compare against for bee and varroa experiments.

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