traincascade's error (Required leaf false alarm rate achieved. Branch training terminated.)
Hello, everyone.
I wamt to create a LBP face detector with traincascade. However, traincascade outputs a following message and stop training.
"Required leaf false alarm rate achieved. Branch training terminated."
This is my first training parameters.
opencv_traincascade -numPos 7500 -numNeg 3000 -featureType LBP -mode ALL -numStages 12 -w 48 -h 48
However, Training stops stage 9.
I tried to set various parameters. For example, -maxFalseAlarmRate 0.4 or 0.3, -w 24 -w 24, -minHitRate 0.7, -numStage 8 and -numpos 6000 ,but traincascade outputs same error message.
I prepare about 8,500 positive samples and 4,000 negative samples, so I think number of samples is enough.
This is a example of positive samples.
C:\fakepath\sampling_succeed.png
This is a example of negative samples.
C:\fakepath\division_img00010.jpg
I have no idea to finish training. Please advice me.
This is reported accuracy at stage 7,8 and stopped 9
===== TRAINING 7-stage =====
<BEGIN
POS count : consumed 7500 : 7659
NEG count : acceptanceRatio 3000 : 0.00111988
Precalculation time: 4.987
+----+---------+---------+
| N | HR | FA |
+----+---------+---------+
| 1| 1| 1|
+----+---------+---------+
| 2| 1| 1|
+----+---------+---------+
| 3| 0.998133| 0.633|
+----+---------+---------+
| 4| 0.9968| 0.54|
+----+---------+---------+
| 5| 0.995867| 0.298333|
+----+---------+---------+
END>
Training until now has taken 0 days 1 hours 34 minutes 5 seconds.
===== TRAINING 8-stage =====
<BEGIN
POS count : consumed 7500 : 7690
NEG count : acceptanceRatio 3000 : 0.000370415
Precalculation time: 5.016
+----+---------+---------+
| N | HR | FA |
+----+---------+---------+
| 1| 1| 1|
+----+---------+---------+
| 2| 1| 1|
+----+---------+---------+
| 3| 0.997467| 0.585667|
+----+---------+---------+
| 4| 0.9952| 0.478333|
+----+---------+---------+
END>
Training until now has taken 0 days 1 hours 53 minutes 53 seconds.
===== TRAINING 9-stage =====
<BEGIN
POS count : consumed 7500 : 7726
NEG count : acceptanceRatio 3000 : 0.000193578
Required leaf false alarm rate achieved. Branch training terminated.
