Drone is not following [maybe]

[warp1337]

Hi there,

first of all, nice work, I really enjoyed using this stack 👍 I got it all running after a few system dependent hacks (got no PS3 controller, had to change the buttons). Anyway, I printed the Falkor logo, as provided, on a sheet of paper, inverted, which means: black logo on white paper. If I am right, this shouldn't harm the LBP classifier right? It's based on edge detection and the image will most probably converted to BW anyway...

As soon as I launch the drone (2.0), set it to "tracking" mode...it does nothing really, just hovering. The CV window also indicates "Tracking". I pulled the master, by the way, and I am using ROS Groovy on Ubuntu 12.10 (and also 12.04).

The only error messages are:

[ERROR] [1367779163.189744376]: Unable to open camera calibration file [/home/flier/.ros/camera_info/ardrone_front.yaml]
[ERROR] [1367779163.189816043]: Unable to open camera calibration file [/home/flier/.ros/camera_info/ardrone_bottom.yaml]

but they seem to be harmless, according to issue #2.

So - does the logo really need to be white on black? (I can see the optical flow bars though in the CV window...) Thank you for your time ;)

[sameerparekh]

Hi, not sure what you mean when you say you see the optical flow bars? Do you see a yellow box around the logo? If so it is detecting and the problem is in the control loop. If not then it isnt detecting. I have actually not had good luck with inverted images. If its not detecting try white on black.

Sent from my phone. Please excuse my brevity.

Florian Lier notifications@github.com wrote:

Hi there,

first of all, nice work, I really enjoyed using this stack 👍 I got
it all running after a few system dependent hacks (got no PS3
controller, had to change the buttons). Anyway, I printed the Falkor
logo, as provided, on a sheet of paper, inverted, which means: black
logo on white paper. If I am right, this shouldn't harm the LBP
classifier right? It's based on edge detection and the image will most
probably converted to BW anyway...

As soon as I launch the drone (2.0), set it to "tracking" mode...it
does nothing really, just hovering. The CV window also indicates
"Tracking". I pulled the master, by the way, and I am using ROS Groovy
on Ubuntu 12.10 (and also 12.04).

The only error messages are:

[ERROR] [1367779163.189744376]: Unable to open camera calibration file
[/home/flier/.ros/camera_info/ardrone_front.yaml]
[ERROR] [1367779163.189816043]: Unable to open camera calibration file
[/home/flier/.ros/camera_info/ardrone_bottom.yaml]

but they seem to be harmless, according to issue #2.

So - does the logo really need to be white on black? (I can see the
optical flow bars though in the CV window...) Thank you for your time
;)

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