Still Box README

Still_Box_README.md

Still Box

Torrent description

In addition to this README, this torrent contains 4 datasets:

Name	Image size (px)	Scene number	Size compressed (B)	Total size (B)
64.tar.xz	64x64	80K	9.8G	19G
128.tar.xz	128x128	20K	7.1G	12G
256.tar.xz	256x256	3.2K	5.0G	8.5G
512.tar.xz	512x512	3.2K	19G	33G

Each dataset consists in 16 folders. Each of these folders will have a metadata.json file to describe the content of the folder

{
  "args": {},
  "scenes":[],
  "fov": 90,
  "scenes_nb": 5000,
  "resolution":[64,64]
}

• fov is in degrees (it's 90 throughout all the different datasets)
• resolution is in pixels
• args is a dump of the settings of the scenes when it was generated

Each element of the list of scenes has the same structure

{
  "depth": [],
  "imgs":[],
  "length":10,
  "speed": [x,y,z],
  "time_step":0.1
}

• depth and imgs are lists of file paths. they should be of the same length specified in length, and the nth element of depth should match the nth element of imgs
• speed is a 3D vector, coordinates are in m/s, defined in [Right Up Forward] system, relative to the camera
• time_step is the time between each frame.

To get 3D displacement between two frames, you can compute it with displacement = shift * time_step * speed

args has this structure (among other options)

{
 "clip": [0.1, 200],
 "meshes_nb": 20,
 "meshes_var": [4.0, 15.0],
 "texture_ratio": 0.5
 }

• clip is clipping distance, objects as near as 0.1m or as far as 200m won't appear
• meshe_nb is the number of shapes in each scene, you may not see all of the same at once in the frames
• meshes_ver is the variation in size and position of the meshes of the scene. Both in meters
• texture_ratio is the ratio of textured shapes. Other shapes have a unified color texture

stillbox.torrent