CvFaceLandmark flickers and disappears when head is tilted

[axcasella]

Hi Adam, thanks for putting this together. I tried the CvFaceLandmark example. A couple of issues/questions:

The landmarks from CvFaceLandmark shows up in IOS, however, it flickers a lot and disappears whenever the face moves. Does it not do live tracking? I guess it could also be a performance issue with rendering a element for every landmark point. Perhaps it will work better if I switched to a canvas and drew the landmarks in the canvas?

[adamgf]

Hi Axcasella, I have not really messed around with performance that much but I am super excited to see what you can do to tweak it and get some better preformance!! I was content to get rid of any kind of memory leaks and so the performance was adequate. I have added you as a collaborator. Feel free to make any changes or updates to the code base in a separate branch or the master branch. Best regards, Adam

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On Sat, May 16, 2020 at 5:55 PM axcasella ***@***.***> wrote: Hi Adam, thanks for putting this together. I tried the CvFaceLandmark example <https://github.com/adamgf/react-native-opencv3-tests/tree/master/CvFaceLandmarks>. A couple of issues/questions: The landmarks from CvFaceLandmark shows up in IOS, however, it flickers a lot and disappears whenever the face moves. Does it not do live tracking? I guess it could also be a performance issue with rendering a element for every landmark point. Perhaps it will work better if I switched to a canvas and drew the landmarks in the canvas? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#22>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAJ6V3Y23XHAFNAHXQN6SCLRR4YYFANCNFSM4NDEYAIQ> .

[adamgf]

I mean major memory leaks that would crash the app. There are still a bunch of more minor memory leaks. Best regards, Adam

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On Sun, May 17, 2020 at 6:59 PM Adam ***@***.***> wrote: Hi Axcasella, I have not really messed around with performance that much but I am super excited to see what you can do to tweak it and get some better preformance!! I was content to get rid of any kind of memory leaks and so the performance was adequate. I have added you as a collaborator. Feel free to make any changes or updates to the code base in a separate branch or the master branch. Best regards, Adam On Sat, May 16, 2020 at 5:55 PM axcasella ***@***.***> wrote: > Hi Adam, thanks for putting this together. I tried the CvFaceLandmark > example > <https://github.com/adamgf/react-native-opencv3-tests/tree/master/CvFaceLandmarks>. > A couple of issues/questions: > > The landmarks from CvFaceLandmark shows up in IOS, however, it flickers a > lot and disappears whenever the face moves. Does it not do live tracking? I > guess it could also be a performance issue with rendering a element for > every landmark point. Perhaps it will work better if I switched to a canvas > and drew the landmarks in the canvas? > > — > You are receiving this because you are subscribed to this thread. > Reply to this email directly, view it on GitHub > <#22>, or > unsubscribe > <https://github.com/notifications/unsubscribe-auth/AAJ6V3Y23XHAFNAHXQN6SCLRR4YYFANCNFSM4NDEYAIQ> > . >

[axcasella]

Thanks Adam. If you are aware of the minor memory leaks, can you point them out so I can fix them? I will investigate the code a bit more this week

[adamgf]

Hi @axcasella,
I am not really sure what the memory leaks are in Objective-C. I think you can run Instruments in XCode to see what they are.
Best regards,
ADam