Subsampling

Subsampling reduces the number of camera columns or rows that are used for profiling, reducing the resolution. Reducing the resolution can increase speed or reduce CPU usage while maintaining the sensor's field of view. Subsampling can be set independently for the X axis and Z axis. You set subsampling on the Inspect > Scan page, in the Sensor Properties section.

The X subsampling setting is used to decrease the profile's X resolution to decrease sensor CPU usage. The X setting works by reducing the number of image columns used for laser profiling.

The Z subsampling setting is used to decrease the profile's Z resolution to increase speed. The Z setting works by reducing the number of image rows used for laser profiling.

Because Z subsampling reduces vertical image resolution, you may need to adjust spot detection parameters when it is enabled.

Subsampling values are expressed as fractions in the GoPxL interface. For example, an X subsampling value of 1/2 means that every second camera column will be used for laser profiling. When the parameter is set to 1, no subsampling occurs.

The CPU load at the bottom of the interface displays how much the CPU is being used.