Forums - Use of cameras for landing applications

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Use of cameras for landing applications
Join Date: 14 Sep 17
Posts: 2
Posted: Thu, 2017-09-14 20:26


Can the downward camera supporting optical flow be also used for object detection (for eg: color based blob detection) for landing applications.? Can I get the raw frame captured by this camera on a ros topic to proceed with object detection?

Also can the forward facing cameras be tilted or are they fixed?




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jackdoc Moderator
Join Date: 14 Nov 16
Posts: 59
Posted: Thu, 2017-09-28 07:45

Hi Alvika,

I recommend you check out snap_cam_ros for an example of how to interact with libcamera on the Snapdragon Flight board to get image frames in ROS.

If the optical flow application that you are using gets the frames directly from libcamera, you will not be able to get the frames in a separate process. However, if the optical flow application subscribes to the images in ROS, then ROS handles the fanout and the frames are available for other ROS nodes to consume as well.

Regarding the forward-facing cameras, I assume you are referring to the Snapdragon Flight Stereovision Add-on Kit. The cameras are mounted rigidly to point forward with about a thirteen-degree downward tilt. The tilt angle cannot be adjusted.

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