Hello,
I have an unexpected segmentation fault with random forest classifier in
OTB6.1.
I had an error compiling RF forest classifier due to the compiler not
finding otb_opencv_api.h. It could be solved by adding the path of the
include dir with ccmake, but I wonder what is the purpose of this file: it
seems to set a variable OPENCV_3, but it is not actually checking if
open_cv v3 is there (in my case, I use an external open_cv3).
Now it gives me a systematic segmentation fault (on previous version, I had
sometimes a segmentation fault, but not always, and I was hoping that the
next version would solve the problem). The problem seems to come from my
training step: I can run the models of my previous version with
otbcli_ImageClassifier, but it doesn't work with the new models (which has
a different structure, see below)
NOT working
%YAML:1.0
opencv_ml_rtrees:
is_classifier: 1
var_all: 5
var_count: 4
ord_var_count: 4
cat_var_count: 1
training_params:
use_surrogates: 0
max_categories: 10
regression_accuracy: 9.9999997764825821e-03
max_depth: 15
min_sample_count: 25
cross_validation_folds: 0
nactive_vars: 0
global_var_idx: 1
var_idx: [ 0, 1, 2, 3 ]
var_type: [ 0, 0, 0, 0, 1 ]
cat_ofs: [ 0, 0, 0, 0, 0, 0, 0, 0 ]
class_labels: [ 1, 6, 7, 12, 13, 17, 19, 22, 24 ]
missing_subst: [ 0., 0., 0., 0., 0. ]
oob_error: 2.4000992032737081e-01
ntrees: 75
WORKING
%YAML:1.0
my_random_trees: !!opencv-ml-random-trees
nclasses: 9
nsamples: 88071
nactive_vars: 2
oob_error: 2.4195188071840054e-01
ntrees: 75
is_classifier: 1
var_all: 4
var_count: 4
ord_var_count: 4
cat_var_count: 0
training_params:
use_surrogates: 0
max_categories: 10
max_depth: 15
min_sample_count: 25
cross_validation_folds: 0
priors: !!opencv-matrix
rows: 1
cols: 9
dt: d
data: [ 1., 1., 1., 1., 1., 1., 1., 1., 1. ]
var_type: [ 0, 0, 0, 0 ]
cat_count: !!opencv-matrix
rows: 1
cols: 1
dt: i
data: [ 9 ]
cat_map: !!opencv-matrix
rows: 1
cols: 9
dt: i
data: [ 1, 6, 7, 12, 13, 17, 19, 22, 24 ]
trees:
--
--
Check the OTB FAQ at
http://www.orfeo-toolbox.org/FAQ.html
You received this message because you are subscribed to the Google
Groups "otb-users" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/otb-users?hl=en
---
You received this message because you are subscribed to the Google Groups
"otb-users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
