Laser Triangulation

Principles

• Laser line triangulation
• Displacement of laser line on objects in scene is proportional to object height.

Key considerations

• Laser light source, robust to ambient.
• Simple measurement principle.
• Highly customizable.
• Good fit for conveyor applications.
• Slow since it requires scanning motion across the scene.
• No color information.

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.