EN: Oz Knowledge Base
Oz Forensics HomeOz API ReferenceContact Us
Search
⌃K
Links

Media Quality Requirements

If your media meets the recommended requirements, this ensures the highest analysis accuracy. If media do not meet the minimal requirements, accuracy is not guaranteed.

Common Media Requirements

  • There shouldn't be more than one face in the frame (except photos of documents).
  • The face should be in the center of the frame (except photos of documents).
  • Orientation: portrait or landscape.
  • Liveness images should have 3 channels.

Video Quality Requirements

Parameter
Requirements
Video length
  • up to 5 seconds
Bitrate
  • recommended – 10000 Kbit/sec
Resolution
  • minimum – 480p
  • recommended – 720p
Angle
  • full-face
  • the eye line is horizontal
Deviation of the face from the vertical direction:
  • minimum – 30 degrees or less
  • recommended – 15 degrees or less
Brightness
Minimum:
  • the eye area is not too dark
  • the background is not too bright
Recommended:
  • the face shape is clear
  • the eye area is not too dark
  • the background is not too bright
  • the face should be evenly illuminated without glares or shadows
Face size
Portrait:
  • 50-80% of the frame height
  • 40-60% of the frame width
Lanscape:
  • 50-80% of the frame height
  • 15-25% of the frame width
Video format
Recommended:
  • MPEG/MPG
  • QuickTime/MOV
  • MP4
Also possible:
  • OGG
  • WebM
  • WMV
  • AVI

Image Quality Requirements

The requirements below refer to photos taken at the time the check is being performed.
Parameter
Requirements
Resolution
  • minimum – 480×640 (252×300 for Oz Biometry)
  • recommended – 720×1280
Angle
  • full-face
  • the eye line is horizontal
Deviation of the face from the vertical direction:
  • minimum – 30 degrees or less
  • recommended – 15 degrees or less
Brightness
Minimum:
  • the eye area is not too dark
  • the background is not too bright
Recommended:
  • the face shape is clear
  • the eye area is not too dark
  • the background is not too bright
  • the face should be evenly illuminated without glares or shadows
Face size
Portrait:
  • 50-80% of the frame height (for Oz Biometry, from 15%, but not less than 112)
  • 40-60% of the frame width
Landscape:
  • 50-80% of the frame height (for Oz Biometry, from 15%, but not less than 112)
  • 15-25% of the frame width
Image format
  • JPG
  • JPEG
  • PNG

Documents Requirements

  • No glares or shadows.
  • The background is not too bright.
  • The face on a photo is in focus and has no objects on it.
  • Minimum size of face on photo – 10% of the frame height, but not less than 112×112.
  • Photos of documents should not be compressed.
Previous
Changelog
Next - Other
Compatibility
Last modified 1yr ago