Re: [Openimaj-discuss] Parallel process video

[Jonathon H. <js...@ec...>]

Hi Ben,

Parallel processing generally won’t help with video unless the operation that you are performing on each frame is independent of the previous frame(s) - generally speaking tracking doesn’t fall into this category as it relies on using the position of the object in the previous frame as a starting point for updating detection in the current frame.

What method are you using for tracking? For most methods an easy way of speeding up processing is to lower the resolution of the frame the tracking is being applied to & then scale the result back to the original frame size.

Jon


> On 26 Oct 2016, at 08:58, Ben Markham <ben...@gm...> wrote:
> 
> Hello,
> 
> I’m fairly new to the concept of processing video using OpenImaj and just processing video using Java in general. In the tutorial, it shows an example of a dataset of MBFImages to do parallel processing. Would I just treat the Video as a Dataset? If so, do I put the parallel processing in the beforeUpdate method? 
> 
> I’m wondering because I’m trying to do face tracking on an mp4 file and I’m losing about 12 FPS. Is parallel processing not the way to go about increasing FPS? Should I be using another method?
> 
> Thank you,
> Ben. 
> ------------------------------------------------------------------------------
> The Command Line: Reinvented for Modern Developers
> Did the resurgence of CLI tooling catch you by surprise?
> Reconnect with the command line and become more productive. 
> Learn the new .NET and ASP.NET CLI. Get your free copy!
> http://sdm.link/telerik
> _______________________________________________
> openimaj-discuss mailing list
> ope...@li...
> https://lists.sourceforge.net/lists/listinfo/openimaj-discuss