我正在尝试使用以下命令创建我的级联分类器：
haartraining -data haarcascade -vec samples.vec -bg negatives.dat -nstages 20 -nsplits 2 -minhitrate 0.999 -maxfalsealarm 0.5 -npos 1000 -nneg 600 -w 20 -h 20 -nonsym -mem 2048 -mode ALL
我使用以下命令从一个图像创建了 1500 个样本：
createsamples -img foto.png -num 1500 -bg negatives.dat -vec samples.vec -maxxangle 0.6 -maxyangle 0 -maxzangle 0.3 -maxidev 100 -bgcolor 0 -bgthresh 0 -w 20 -h 20
这是阶段 3 的输出：
Tree Classifier
Stage
+---+
| 0|
+---+
Number of features used : 125199
Parent node: NULL
*** 1 cluster ***
POS: 1000 1000 1.000000
NEG: 600 1
**BACKGROUND PROCESSING TIME: 0.02**
Precalculation time: 41.39
+----+----+-+---------+---------+---------+---------+
| N |%SMP|F| ST.THR | HR | FA | EXP. ERR|
+----+----+-+---------+---------+---------+---------+
| 1|100%|-|-0.989933| 1.000000| 0.988333| 0.003125|
+----+----+-+---------+---------+---------+---------+
| 2|100%|-| 0.006064| 1.000000| 0.000000| 0.000000|
+----+----+-+---------+---------+---------+---------+
Stage training time: 40.66
Number of used features: 4
Parent node: NULL
Chosen number of splits: 0
Total number of splits: 0
Tree Classifier
Stage
+---+
| 0|
+---+
0
Parent node: 0
*** 1 cluster ***
POS: 1000 1000 1.000000
NEG: 600 0.0169943
**BACKGROUND PROCESSING TIME: 0.23**
Precalculation time: 37.19
+----+----+-+---------+---------+---------+---------+
| N |%SMP|F| ST.THR | HR | FA | EXP. ERR|
+----+----+-+---------+---------+---------+---------+
| 1|100%|-|-0.981031| 1.000000| 1.000000| 0.007500|
+----+----+-+---------+---------+---------+---------+
| 2|100%|-| 0.005864| 1.000000| 0.010000| 0.003750|
+----+----+-+---------+---------+---------+---------+
Stage training time: 36.25
Number of used features: 4
Parent node: 0
Chosen number of splits: 0
Total number of splits: 0
Tree Classifier
Stage
+---+---+
| 0| 1|
+---+---+
0---1
Parent node: 1
*** 1 cluster ***
POS: 1000 1000 1.000000
NEG: 600 0.000522
**BACKGROUND PROCESSING TIME: 7.54**
Precalculation time: 40.80
+----+----+-+---------+---------+---------+---------+
| N |%SMP|F| ST.THR | HR | FA | EXP. ERR|
+----+----+-+---------+---------+---------+---------+
| 1|100%|-|-0.895043| 1.000000| 1.000000| 0.051875|
+----+----+-+---------+---------+---------+---------+
| 2|100%|-|-1.818561| 1.000000| 0.978333| 0.026250|
+----+----+-+---------+---------+---------+---------+
| 3|100%|-|-2.601195| 1.000000| 0.676667| 0.010000|
+----+----+-+---------+---------+---------+---------+
| 4|100%|-|-1.673473| 1.000000| 0.033333| 0.003125|
+----+----+-+---------+---------+---------+---------+
Stage training time: 80.58
Number of used features: 8
Parent node: 1
Chosen number of splits: 0
Total number of splits: 0
Tree Classifier
Stage
+---+---+---+
| 0| 1| 2|
+---+---+---+
0---1---2
Parent node: 2
*** 1 cluster ***
POS: 1000 1000 1.000000
NEG: 600 4.19496e-005
**BACKGROUND PROCESSING TIME: 93.92**
Precalculation time: 40.82
+----+----+-+---------+---------+---------+---------+
| N |%SMP|F| ST.THR | HR | FA | EXP. ERR|
+----+----+-+---------+---------+---------+---------+
| 1|100%|-|-0.955309| 1.000000| 1.000000| 0.059375|
+----+----+-+---------+---------+---------+---------+
| 2|100%|-|-1.676803| 1.000000| 0.931667| 0.065000|
+----+----+-+---------+---------+---------+---------+
| 3|100%|-|-1.313002| 1.000000| 0.233333| 0.010625|
+----+----+-+---------+---------+---------+---------+
Stage training time: 63.21
Number of used features: 6
Parent node: 2
Chosen number of splits: 0
Total number of splits: 0
Tree Classifier
Stage
+---+---+---+---+
| 0| 1| 2| 3|
+---+---+---+---+
0---1---2---3
Parent node: 3
*** 1 cluster ***
POS: 1000 1000 1.000000
NEG: 600 1.23118e-005
**BACKGROUND PROCESSING TIME: 327.57**
Precalculation time: 41.54
+----+----+-+---------+---------+---------+---------+
| N |%SMP|F| ST.THR | HR | FA | EXP. ERR|
+----+----+-+---------+---------+---------+---------+
| 1|100%|-|-0.939509| 1.000000| 1.000000| 0.054375|
+----+----+-+---------+---------+---------+---------+
| 2|100%|-|-1.812912| 1.000000| 0.821667| 0.047500|
+----+----+-+---------+---------+---------+---------+
| 3|100%|-|-0.907906| 1.000000| 0.128333| 0.016875|
+----+----+-+---------+---------+---------+---------+
Stage training time: 61.52
Number of used features: 6
Parent node: 3
Chosen number of splits: 0
Total number of splits: 0
Tree Classifier
Stage
+---+---+---+---+---+
| 0| 1| 2| 3| 4|
+---+---+---+---+---+
0---1---2---3---4
Parent node: 4
*** 1 cluster ***
POS: 1000 1000 1.000000
0%
我的问题是：
后台处理时间增长这么快是正常的吗？？要到达第 20 阶段，我需要几个星期！有事吗？？