How do you config Darknet_Ros (yolo) to see a camera topic?

I have yolo running on a server and the robot publishing a usb camera topic /usb_cam/image_raw - i am able to see the image in rviz, but I get a continuous "waiting for image" message from the darknet_ros package after i configure the ros.yml file to subscribe to the same topic. I tried running all the launch files with no success. Im not using a GPU, yet - I was just testing with a CPU but it cant seem to subscribe to the image topic.

Thanks for your help. The git repo doesn't seem to be responding to issues.

Asked by cerebraldad on 2019-02-11 09:48:08 UTC

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I would recommend using rosnode info <node_name> on both yolo and the camera node, to confirm they are on the same topic and namespace.

Asked by PeteBlackerThe3rd on 2019-02-11 10:42:29 UTC

@PeteBlackerThe3rd rosnode info /usb_cam shows no subscribers: Subscriptions: None but /darknet_ros shows /usb_cam/image_raw [sensor_msgs/Image] in subscriptions

Asked by cerebraldad on 2019-02-12 12:54:11 UTC

/usb_cam and /usb_cam/image_raw are different topic names. You will have to remap the topic on one of these nodes so that they are connected.

Asked by PeteBlackerThe3rd on 2019-02-12 13:18:20 UTC

you said rosnode above. I'm confused.

Asked by cerebraldad on 2019-02-12 15:57:56 UTC

@cerebraidad I'm having the same problem. Did you solve yours?

Asked by distro on 2023-01-13 23:29:14 UTC

How do you config Darknet_Ros (yolo) to see a camera topic?

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