Bluetooth Unleashed : AAPSAD #3 : The Fall

RE: Bluetooth Unleashed : AAPSAD #3 : The Fall

genebren — Sun, 20 May 2018 00:13:59 GMT

[mention:90cdbbdc4bf94e98ad4635607ec2f3ff:e9ed411860ed4f2ba0265705b8793d05],

Each pixel used has a cost. Try to limit the area that you are processing and the resolution that you are using. I have done a lot of image processing and have found that highly optimized algorithms always beat general purpose functions. Also, be sure to utilize integer math where ever possible as this is the most optimized calculation.

Good luck as you regroup and figure a way to achieve your goals.

Gene

RE: Bluetooth Unleashed : AAPSAD #3 : The Fall

DAB — Sat, 19 May 2018 19:01:56 GMT

If you do a little research, you will find that the higher quality recognition algorithms use a set of control points for facial features that they use as cues for specific purposes.

Take a look at those control features, especially the eyes, nose and lips. You should find that you can improve your reliability and ability to resolve more facial characteristics.

DAB

RE: Bluetooth Unleashed : AAPSAD #3 : The Fall

shabaz — Sat, 19 May 2018 17:14:31 GMT

Hi!

Good to see the progress, nice project : )

If you're only applying processing per frame using OpenCV (i.e. only looking for features in still images), then there are a few tricks possible. One idea is to reduce the image resolution (since you likely don't need HD), and another is to choose not to process all frames, e.g. just process one frame a second, or get the Pi camera to take a snapshot once per second only. It should speed things up significantly.

RE: Bluetooth Unleashed : AAPSAD #3 : The Fall

aspork42 — Sat, 19 May 2018 17:13:32 GMT

Nice update! Perhaps limit the frame rate or only trigger the script based on some other input like a button press or motion sensor?