I have been able to train a deep learning model (Yolo v3) in ArcGIS Pro. The model seems fine, as can be seen below. It's not perfect but was trained with a small amount of data.
However, it does not seem to work for inference. I am using the "Detect objects using deep learning" tool on the same image it was trained on to test the model, and specifying the model .emd. Everything runs fine and it produces a feature layer as expected. However, I've tried different combinations of parameters and the feature layer is always empty - no object detected. Even if I do the inference on a display extent where there a lot of objects (and this is the same imagery that was used for training so I should detect something).
I am puzzled. Why doesn't my trained model detect anything?
#### copy-pasted 
from .emd file
{
"Framework": "arcgis.learn.models._inferencing",
"InferenceFunction": "[Functions]System\\DeepLearning\\ArcGISLearn\\ArcGISObjectDetector.py",
"ModelConfiguration": "_yolov3_inference",
"ModelType": "ObjectDetection",
"ExtractBands": [
0,
1,
2,
3
],
"ModelParameters": {
"anchors": [
[
8,
10
],
[
24,
39
],
[
73,
42
],
[
71,
118
],
[
180,
103
],
[
128,
226
],
[
276,
179
],
[
235,
303
],
[
368,
371
]
],
"n_bands": 4,
"backbone": "DarkNet53",
"backend": "pytorch"
},
"Classes": [
{
"Value": 1,
"Name": "Pine",
"Color": [
124,
120,
159
]
}
],
"ModelFormat": "NCHW",
"MinCellSize": {
"x": 0.029999999999998857,
"y": 0.03000000000000922,
"spatialReference": {
"wkt": "PROJCS[\"WGS_1984_UTM_Zone_18N\",GEOGCS[\"GCS_WGS_1984\",DATUM[\"D_WGS_1984\",SPHEROID[\"WGS_1984\",6378137.0,298.257223563]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"False_Easting\",500000.0],PARAMETER[\"False_Northing\",0.0],PARAMETER[\"Central_Meridian\",-75.0],PARAMETER[\"Scale_Factor\",0.9996],PARAMETER[\"Latitude_Of_Origin\",0.0],UNIT[\"Meter\",1.0]],VERTCS[\"unknown\",VDATUM[\"unknown\"],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]"
}
},
"MaxCellSize": {
"x": 0.029999999999998857,
"y": 0.03000000000000922,
"spatialReference": {
"wkt": "PROJCS[\"WGS_1984_UTM_Zone_18N\",GEOGCS[\"GCS_WGS_1984\",DATUM[\"D_WGS_1984\",SPHEROID[\"WGS_1984\",6378137.0,298.257223563]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"False_Easting\",500000.0],PARAMETER[\"False_Northing\",0.0],PARAMETER[\"Central_Meridian\",-75.0],PARAMETER[\"Scale_Factor\",0.9996],PARAMETER[\"Latitude_Of_Origin\",0.0],UNIT[\"Meter\",1.0]],VERTCS[\"unknown\",VDATUM[\"unknown\"],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]"
}
},
"SupportsVariableTileSize": false,
"ArcGISLearnVersion": "2.0.1",
"monitored_valid_loss": 153.23129272460938,
"ModelFile": "detect_pines_3cm_512.pth",
"ImageHeight": 512,
"ImageWidth": 512,
"ImageSpaceUsed": "MAP_SPACE",
"LearningRate": "slice('3.9811e-05', '3.9811e-04', None)",
"ModelName": "YOLOv3",
"backend": "pytorch",
"accuracy": {
"Pine": 0.4481547301495272
},
"resize_to": null,
"IsMultispectral": true,
"Bands": [
"",
"",
"",
""
],
"ImageryType": "MultiSpectral",
"NormalizationStats": {
"band_min_values": [
0.0,
0.0,
0.0,
0.0
],
"band_max_values": [
255.0,
255.0,
255.0,
255.0
],
"band_mean_values": [
94.2491226196289,
98.7134017944336,
65.65867614746094,
254.9991455078125
],
"band_std_values": [
36.213584899902344,
37.29859161376953,
34.38850021362305,
0.46285802125930786
],
"scaled_min_values": [
0.0,
0.0,
0.0,
0.0
],
"scaled_max_values": [
1.0,
1.0,
1.0,
1.0
],
"scaled_mean_values": [
0.3696043789386749,
0.3871113657951355,
0.2574850022792816,
0.9999966025352478
],
"scaled_std_values": [
0.1420140564441681,
0.14626897871494293,
0.13485684990882874,
0.0018151294207200408
]
},
"DoNormalize": true
}
