Menu
WE'RE HIRING
Free Demo
BUY NOW

How it works

Structured Light

3D Vision Technology - Structured Light - Zivid

Structured Light

Principles

  • Projected pattern
  • Distortion / displacements on objects in scene gives depth information.

Key considerations

  • No texture on surfaces required.
  • Single pattern - fast processing.
  • Region based correspondence
  • Block averaging.

 

3D Vision Technology - Time Coded Structured Light - Zivid

Time-coded Structured Light

Principles

  • Projected fringes
  • Distortion / displacements on objects in scene gives depth information.
  • Measure the time of emitted light and reflected response.
  • Zivid utilizes a variant of this technique.

Key considerations

  • Time-coded series of patterns, pixel-wise processing.
  • No need for analyzing spatial neighborhood.
  • Eliminates block averaging.
  • No texture on surfaces required.
  • Optimal combination of “space and time”.
  • Utilize time as «baseline».
  • Potentially most accurate 3D technology, underlying principle determines quality.
    • Traditionally slow, Zivid has made it fast!

Watch Svenn Arne describe how time-coded structured light can create point clouds here:

 

Keep learning!

Read the whole article about active and passive 3D vision principles here, including stereo, active stereo, laser, ToF, and structured light machine vision.

Zivid 3D developer kit bundle
Zivid development kit

Ready to start a 3D vision project?

We provide a bundle to get started, with 3D camera, accessories and mounts.