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| 1 |
+
# EPIC KITCHENS Dataset - Video Release
|
| 2 |
+
Release Date: April 2018
|
| 3 |
+
|
| 4 |
+
## Authors
|
| 5 |
+
Dima Damen (1)
|
| 6 |
+
Hazel Doughty (1)
|
| 7 |
+
Sanja Fidler (2)
|
| 8 |
+
Antonino Furnari (3)
|
| 9 |
+
Evangelos Kazakos (1)
|
| 10 |
+
Giovanni Maria Farinella (3)
|
| 11 |
+
Davide Moltisanti (1)
|
| 12 |
+
Jonathan Munro (1)
|
| 13 |
+
Toby Perrett (1)
|
| 14 |
+
Will Price (1)
|
| 15 |
+
Michael Wray (1)
|
| 16 |
+
|
| 17 |
+
* (1 University of Bristol)
|
| 18 |
+
* (2 University of Toronto)
|
| 19 |
+
* (3 University of Catania)
|
| 20 |
+
|
| 21 |
+
|
| 22 |
+
## Citing
|
| 23 |
+
When using the dataset, kindly reference:
|
| 24 |
+
|
| 25 |
+
Dima Damen, Hazel Doughty, Sanja Fidler, Antonino Furnari, Evangelos Kazakos, Giovanni Maria Farinella, Davide Moltisanti, Jonathan Munro, Toby Perrett, Will Price, Michael Wray (2018). Scaling Egocentric Vision: The EPIC-KITCHENS Dataset. check publication [here](http://epic-kitchens.github.io)
|
| 26 |
+
|
| 27 |
+
## Dataset Details
|
| 28 |
+
This readme contains information about video files. Please see the
|
| 29 |
+
[github](https://github.com/epic-kitchens/annotations) for the latest annotations
|
| 30 |
+
and challenges for the dataset.
|
| 31 |
+
|
| 32 |
+
## Folder Details
|
| 33 |
+
We have the following top level folders:
|
| 34 |
+
|
| 35 |
+
* **videos:** contains the raw uncut videos.
|
| 36 |
+
* **object_detection_images:** contains the frames used as input for object
|
| 37 |
+
detection.
|
| 38 |
+
* **rgb_flow:** contains the RGB and flow frames used as input for action
|
| 39 |
+
recognition.
|
| 40 |
+
|
| 41 |
+
We use `P##/P##_**` with `##` denoting the participant number and `**` to denote
|
| 42 |
+
the video number.
|
| 43 |
+
|
| 44 |
+
### Video Folder Structure
|
| 45 |
+
Videos is further broken down into two subdirectories, train and test containing
|
| 46 |
+
the files in the train and test sets respectively.
|
| 47 |
+
|
| 48 |
+
Each video, labelled as `P##_**.mp4` can be found inside the participant
|
| 49 |
+
directory, i.e. `P01_01.mp4` can be found at `Videos/train/P01/P01_01.mp4`.
|
| 50 |
+
|
| 51 |
+
|
| 52 |
+
### Object Images Folder Structure
|
| 53 |
+
Object Detection Images is further broken down into two subdirectories, train
|
| 54 |
+
and test containing the files in the train and test sets respectively.
|
| 55 |
+
|
| 56 |
+
Image frames, labelled as `img_xxxxxxxxxx.jpg` can be found inside the video
|
| 57 |
+
directory, i.e. The first frame from `P01_01.mp4` can be found at
|
| 58 |
+
`ObjectDetectionImages/train/P01/P01_01/img_0000000001.jpg`.
|
| 59 |
+
|
| 60 |
+
|
| 61 |
+
### RGB Flow Folder Structure
|
| 62 |
+
RGB Flow is further split into two subdirectories, `rgb` and `flow` containing
|
| 63 |
+
files for the RGB frames and flow Frames. Both folders contain the same
|
| 64 |
+
directory structure and are further broken down into train and test directories
|
| 65 |
+
containing the train and test sets respectively.
|
| 66 |
+
|
| 67 |
+
Frames from a video have been grouped into a tar file, labelled as `P##_**.tar`
|
| 68 |
+
and can be found inside the participant directory, i.e. The RGB frames from,
|
| 69 |
+
`P01_01` can be found in `rgb_flow/train/P01_01.tar`. Similarly the flow frames
|
| 70 |
+
can be found in `flow/train/P01_01.tar`. Each tar file contains a flat directory
|
| 71 |
+
of frames named `frame_xxxxxxxxxx.jpg`.
|
| 72 |
+
|
| 73 |
+
|
| 74 |
+
## Video Information
|
| 75 |
+
|
| 76 |
+
Videos are recorded in 1080p at 59.94 FPS on a GoPro Hero 5 with linear field of
|
| 77 |
+
view. There are few videos which were shot at different resolutions,
|
| 78 |
+
field of views, or FPS due to participant error or camera. These videos
|
| 79 |
+
identified using `ffprobe` are:
|
| 80 |
+
|
| 81 |
+
* 1280x720: `P12_01`, `P12_02`, `P12_03`, `P12_04`.
|
| 82 |
+
* 2560x1440: `P12_05`, `P12_06`
|
| 83 |
+
* 29.97 FPS: `P09_07`, `P09_08`, `P10_01`, `P10_04`, `P11_01`, `P18_02`,
|
| 84 |
+
`P18_03`
|
| 85 |
+
* 48 FPS: `P17_01`, `P17_02`, `P17_03`, `P17_04`
|
| 86 |
+
* 90 FPS: `P18_09`
|
| 87 |
+
|
| 88 |
+
The GoPro Hero 5 was also set to drop the framerate in low light conditions to
|
| 89 |
+
preserve exposure leading to variable FPS in some videos. If you wish to
|
| 90 |
+
extract frames we suggest you resample at 60 FPS to mitigate issues with
|
| 91 |
+
variable FPS, this can be achieved in a single step with FFmpeg:
|
| 92 |
+
|
| 93 |
+
```
|
| 94 |
+
ffmpeg -i 'P##_**.MP4' -vf 'scale=-2:256' -q:v 4 -r 60 'P##_**/frame_%010d.jpg'
|
| 95 |
+
```
|
| 96 |
+
|
| 97 |
+
Optical flow was extracted using a fork of
|
| 98 |
+
[`gpu_flow`](https://github.com/feichtenhofer/gpu_flow) made
|
| 99 |
+
[available on github](https://github.com/dl-container-registry/furnari-flow).
|
| 100 |
+
We set the parameters: stride = 2, dilation = 3, bound = 25 and size = 256.
|
| 101 |
+
|
| 102 |
+
|
| 103 |
+
## License
|
| 104 |
+
All files in this dataset are copyright by us and published under the
|
| 105 |
+
Creative Commons Attribution-NonCommerial 4.0 International License, found
|
| 106 |
+
[here](https://creativecommons.org/licenses/by-nc/4.0/).
|
| 107 |
+
This means that you must give appropriate credit, provide a link to the license,
|
| 108 |
+
and indicate if changes were made. You may do so in any reasonable manner,
|
| 109 |
+
but not in any way that suggests the licensor endorses you or your use. You
|
| 110 |
+
may not use the material for commercial purposes.
|