Data Structure

July 24, 2022 · View on GitHub

Here, we show an example of dataset structure of entity 6795937. Notice that each entity can have slightly different content (eg. different number of cameras, different number of frames under each expression), but the general structure should be preserved in the same way.

Under its root directory m−−20180227−−0000−−6795937−−GHS, you should find:

* frame_list.txt
* KRT
* tex_mean.png
* tex_var.txt
* vert_mean.bin
* vert_var.txt

* images
  - E001_Neutral_Eyes_Open
     * 400002
       * 000102.png 
       * 000105.png 
       * (xxxxxx).png 
       * 000177.png
     * 400004
     * (camera_index)
     * 400070
  - E002_Swallow
  - (expressions)
  - SEN_youre_boiling_milk_aint_you
  
* unwrapped_uv_1024
  - E001_Neutral_Eyes_Open
     * 400002
       * 000102.png 
       * 000105.png 
       * (xxxxxx).png 
       * 000177.png
     * 400004
     * (camera_index)
     * 400070
  - E002_Swallow
  - (expressions)
  - SEN_youre_boiling_milk_aint_you
  
* tracked_mesh
  - E001_Neutral_Eyes_Open
     * 000102_transform.txt
     * 000102.bin
     * 000102.obj
     * 000105_transform.txt
     * 000105.bin
     * 000105.obj
     * (xxxxxx)_transform.txt
     * (xxxxxx).bin
     * (xxxxxx).obj
     * 000177_transform.txt
     * 000177.bin
     * 000177.obj
  - E002_Swallow
  - (expressions)
  - SEN_youre_boiling_milk_aint_you

* audio
  - SEN_a_good_morrow_to_you_my_boy.wav
  - SEN_a_voice_spoke_near-at-hand.wav
  - (segment expressions)
  - SEN_youre_boiling_milk_aint_you.wav

The mapping between file/folder names and dataset asset is as the following:

File/Folder Name	Dataset Asset
images	Raw Images
unwrapped_uv_1024	Unwrapped Textures
tracked_mesh	Tracked Meshes
(xxxxxx)_transform.txt	Headpose
audio	Audio
KRT	Metdata - camera calibration
frame_list.txt	Metadata - frame list
tex_mean.png	Metadata - texture mean
tex_var.txt	Metadata - texture variance
vert_mean.bin	Metadata - vertex mean
vert_var.txt	Metadata - vertex variance