The advantage of using a pattern projection sensor is cycle time and simplicity. 

Much like an area scan camera captures an object in 2D, a pattern projection based 3D sensor acquires an entire height map or point cloud in a single capture.  It's faster compared to other 3D methods because it eliminates the time required to move a product or target.  It's also simpler since no coordination with movement, such as an encoder on a conveyor, is required.

It's important to make sure your pattern projection sensor, such as the PhoXi scanner, is designed with factory automation must haves such as an integrated GPU, lightweight construction for attaching to robots, and support by powerful image processing software such as Matrox MIL and Design Assistant software.