Just send me a private message if you are interested emmanuel at gnome org. The solution is to start with a base of ROS time, and to accumulate the dt’s from the camera clock. So far, what is in master provides a good support for the only camera I have, a Basler acAum. The color support is also improved, and now the gstreamer plugin supports caps filtering, which makes it more consistent with the behaviour of other gstreamer plugins. That being said, the fact I only have one device at hand means the testing coverage is pretty poor, compared to GigEVision where I have 10 cameras from 4 different manufacturers. I got my hands on one of the new FLIR GigE cameras recently, and in researching how to work with it came across an open source C library called Aravis for capturing video from Genicam cameras.
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I have received two new cameras for aravis development. The camera’s onboard clock is stable but it doesn’t match with the ROS clock on the PC, and furthermore since it comes from a different piece of hardware, the two clock’s rates are slightly different. An ethernet camera driver for ROS. If you want to help Aravis, you can as usual report bugs, or contribute code.
The issue is that we want a stable timestamp on the images that the camera delivers, giving a nice smooth time delta from frame to frame. Blackfly Thanks a lot. The solution is to start with a base of ROS time, and to accumulate the dt’s from the camera clock. If we were to use the ROS clock on the PC, by the time we get the image packets from the camera a variable amount of time has passed on the PC’s clock due to variable network and system delays.
I’ll keep my eye on this area, but won’t have time for any development any time soon. Buy Max 8 Now. I’m in Montreal, but before I saw your edit I was on the point of offering to courier you the camera. Caemra is quite good, better than with GigEVision 65kB packets helpand it will be even better when I will have removed a useless memory copy operation. Another way would be to give me access to more cameras.
Donation of other hardware, even with broken sensors, would be greatly appreciated. API of aravis changed in versions 0. I’ve built and tested it on macOS Thanks for looking into this so quickly, Rob.
Learn about our user conference Expo ’74 Coming in April If anyone who knows their way around openFrameworks is interested in pursuing this, feel free to follow up here and I can give you details on the process I’ve followed so far short summary: Let me know if you do wind up having time for this in the future, there’s a good chance I could send you a camera to develop with.
It is based on the Aravis library. Is there any possibility that anyone – either someone from C74 or a benevolent forum member with C chops – might be interested in incorporating Aravis into a future version of jit. This donation already helped me to fix a number of obvious issues related to the new pixel formats this camera supports. You can get the driver here.
The ROS params that you set for these must be, respectively, a bool, an integer and a string. It can be downloaded here: I think this library is in a pretty good shape now, and should be useful for everyone trying to control Genicam based cameras. It would be interesting, for example, camrra add support for araviss protocols than gigabit ethernet. Dec 05 5: Try Max free for 30 days. That being said, the fact I only have one device at hand means the testing coverage is pretty poor, compared to GigEVision where I have 10 cameras from 4 different manufacturers.
To specify which camera to open, via the command-line: There’s an openFrameworks add-on that’s a basic wrapper for Aravis ofxAravisand another openFrameworks Syphon add-on ofxSyphon. Preferably from a country member of the European union, in order to avoid custom related atavis.
And it is very convenient to have this device at home for aravis development. And of course, I still also welcome GigEVision device donations, especially those with exotic features….