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spmallick / learnopencv

Learn OpenCV : C++ and Python Examples
https://www.learnopencv.com/
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YOLO detection false negative #114

Open Bibiw1 opened 6 years ago

Bibiw1 commented 6 years ago

Hello. I launched yolo detection with video stream(IP-camera). Picture: image There's two cars, but algorithm detected only one. Can I tune program to fix it? Help me plz

BlcaKHat commented 6 years ago

if you want a perfect one, then you have to train one for yourself. read about threshold, and confidence. it can also help. but at the end algorithm can't do everything, for practical scenario, you have to take care of image, size of object, exposure are and all that.

Bibiw1 commented 6 years ago

okay, thank you. I am asking about, maybe, settings of algorithm, like sensetivity. i want to decrease false negative by false positives. hope you can undestand me

AvinoamK commented 6 years ago

Try to change the values of some parameters in yolo3.cfg, for example ignore_thresh, which is 0.7 by default.

Bibiw1 commented 6 years ago

Thank you, I'll try it