how to get raw IR images without turning off the laser emitter on D435i

[kevin2431]

---

Required Info
Camera Model	D435I
Firmware Version	05.12.03.00
Operating System & Version	Ubuntu 16.04
Kernel Version (Linux Only)	Ubuntu 18.04
Platform	PC
SDK Version	liberealsense 2.34
Language	C++
Segment	Robot

Issue Description

I am working on a project which needs stereo and depth images. If turn off the emitter, I can get raw IR images without patterns. However, in this way can not get high-quality depth images.
Is there any way to get raw stereo IR images without turning off the laser emitter on D435i?
Thanks!

[MartyG-RealSense]

The visibility of the dot pattern projection is linked to the Laser Power setting. So you could render the pattern virtually invisible whilst keeping the emitter active by setting laser power to '1' (a setting of '0' turns the projector off).

You can set the Laser Power in the "Controls" section of the RealSense Viewer program's options side panel, or control it with scripting. The C++ version of this code is in the link below:

https://github.com/IntelRealSense/librealsense/wiki/API-How-To#controlling-the-laser

Please use the laser control code in the section headed 'Librealsense2'.

[MartyG-RealSense]

Hi @kevin2431 Do you require further assistance with this question please, or can this case be closed? Thanks!

[mydlgit]

Hi @kevin2431 Do you require further assistance with this question please, or can this case be closed? Thanks!

The visibility of the dot pattern projection is linked to the Laser Power setting. So you could render the pattern virtually invisible whilst keeping the emitter active by setting laser power to '1' (a setting of '0' turns the projector off).

You can set the Laser Power in the "Controls" section of the RealSense Viewer program's options side panel, or control it with scripting. The C++ version of this code is in the link below:

https://github.com/IntelRealSense/librealsense/wiki/API-How-To#controlling-the-laser

Please use the laser control code in the section headed 'Librealsense2

hi, how to do this in python?

[MartyG-RealSense]

@mydlgit A Python script for setting laser power is in the link below.

#1258 (comment)