topic Re: Bounding Box for D435 in Items with no label

Bounding Box for D435

aardee — Tue, 28 Aug 2018 18:01:00 GMT

Is there a way to create a bounding box for the depth pointcloud for the D435? I'm using the camera with ROS.

Re: Bounding Box for D435

MartyG — Tue, 28 Aug 2018 18:12:29 GMT

I hope this link will be of use to you. It was originally suggested to someone who was using ROS and OpenCV.

Re: Bounding Box for D435

aardee — Tue, 28 Aug 2018 22:28:00 GMT

Can I put limits on the Z axis for the data?

Re: Bounding Box for D435

MartyG — Tue, 28 Aug 2018 22:55:47 GMT

I would think that the Depth Clamp Min/Max option would be a possibility for setting a maximum depth that values can be considered valid.

Re: Bounding Box for D435

aardee — Wed, 29 Aug 2018 15:35:15 GMT

Hi Marty,

I can do that using the realsense-viewer. How do I do it for use with ROS?

Re: Bounding Box for D435

MartyG — Wed, 29 Aug 2018 16:59:09 GMT

I believe you would have to do it from a C++ script rather than ROS, like the script in the link below.

https://github.com/IntelRealSense/librealsense/issues/2199# issuecomment-410694607 Set depth clamp min/max from C++ and python code · Issue # 2199 · IntelRealSense/librealsense · GitHub

The key line in the script for setting the depth max value is:

depth_table.depthClampMax = 1300; // 1m30 if depth unit at 0.001

Change the '1300' value to whatever will produce the maximum distance in meters that you desire. The value is in mm, so work out the distance in meters that you want your MaxZ to be and then multiply it by 1000 (1000 mm is 1 m) and you will get the value to use.