Structured light technology: Pros and Cons
The other light source used in 3D scanning is the structured light technology, used in DLP systems across all industries. It measures the triangulation of light, as well, but is projected by LCD or LED machines and then captured by cameras. For this reason, it must only be used at close range, like the laser tech. It can be mounted on tripods or used with handheld camera systems, however, making it an ideal choice for mobile scanning needs.
What benefits can you see from this projected light option? For one, it’s incredibly fast. Compared to other options, it can capture an imagine in mere seconds – even on a large or complicated surface. Accuracy is also an advantage, as structured light can pick up the tiniest detail and display with incredible resolution. The only time structured light may not be as advantageous is in a well-lit scenario. Using this 3D scanning tech outside may not work, as the light from the DLP system would be drowned out by the intense light of the sun. This tech works best in low-light settings or where light can be controlled to create the ideal environment.
Which tech is best? Surface type, scan environment and time to scan may be your biggest considerations. What you scan may be most important factor when choosing a 3D scanning tool.