Hand Trigger

Settings Hand Trigger

Hardware Prerequisite

Hand Trigger feature requires Intel RealSense™ Depth Camera hardware, recommended and tested for model D435f.

Intel RealSense™ D435f Depth Camera

Connect to a USB 3.0 or better port directly on PC

Hand Trigger provides an alternative to User Button in Step using Intel RealSense™ D435f Depth Camera.

There are 4 Hand Triggers. Each Hand Trigger is associated with a region, and a trigger signal.

Settings Hand Trigger

First, the Device should be set. This is necessary both to have live image and configure regions.

Toolbar Button	Description
	Lists connected cameras of type D435 for setting the device
	Reset the selected device, so no device is set.

Upon button, connected cameras of type D435 are listed for setting the Device

Displays live image and overlay Regions on image.

Toolbar Button	Description
	Starts live image - May take few seconds time -
	Stops live image

Region cards allows one to configure region and its trigger.

Region Advanced Settings

Toolbar Indicator	Description
	Indicator telling that the region is not configured
	Select region Button for Move/Resize. Upon confirmation, region background data will be identified, and will form the basis for Hand detection calculations.
	Advanced Parameters Button for the region
	Select a Tag for trigger signal exposing detected Hand move
	Clear Tag, in this case Hand move will not trigger any signal

Region Advanced Settings

Toolbar Indicator	Description
	Reset To Default values
	Coverage % Adjust the threshold to decide when the selected region should be treated as filled. A lower threshold makes the system more sensitive to small movements or changes. A higher threshold requires more coverage before the region is considered filled.
	Pixel Count Change % Adjust the threshold to define when an object is considered “detected” in terms of its area. Lower thresholds responds to smaller changes; higher thresholds detect bigger changes.
	Gray Scale Change Adjust the threshold to respond gray scale tones of the object. Lower thresholds responds to smaller changes. Higher thresholds detect bigger changes.