How to use stereo_image_proc with different topic?

asked 2021-02-16 19:25:12 -0600

ssshw gravatar image

Hi all,

I am a newbie in this field..

I am trying to calculate the 3d position of a specific point with respect to the camera coordinate using a stereo camera.

I'd like to use stereo_image_proc package but I am having trouble with the topic name. The warning says that the input topic is not yet advertised.

From my understanding, stereo_image_proc only recognize topics named as "stereo/left/image_raw". However, I have topic named as "left/decklink/camera/image_raw".

I tried remap option to change the topic name but it doesn't seem to work..

The below is the .launch code that I wrote..

<node name="image_listener_stereo" pkg="get_3d_pos" type="stereo_subscriber">
  </node>

  <node ns = "stereo" pkg="stereo_image_proc" type="stereo_image_proc" name="stereo_image_proc">
    <remap from="stereo/left/image_raw" to="/left/decklink/camera/image_raw"/>
    <remap from="stereo/right/image_raw" to="/right/decklink/camera/image_raw"/>
  </node>

Can anyone help me with this?

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Comments

Random, but drop the forward slash before "left" and "right" to be more consistent with the original topics.

EDIT: Nevermind, you put them in the namespace

JackB gravatar image JackB  ( 2021-02-18 09:11:47 -0600 )edit

ALSO: Are the images synchronized exactly? If not in the launch file pass the following

args = "_approximate_sync:=true"
JackB gravatar image JackB  ( 2021-02-18 09:30:54 -0600 )edit