Fix start/end date on Windows and enforce band order normalization

SuperBuild/cmake/External-OpenSfM.cmake

@@ -25,7 +25,7 @@ ExternalProject_Add(${_proj_name}
   #--Download step--------------
   DOWNLOAD_DIR      ${SB_DOWNLOAD_DIR}
   GIT_REPOSITORY    https://github.com/OpenDroneMap/OpenSfM/
-  GIT_TAG           319
+  GIT_TAG           322
   #--Update/Patch step----------
   UPDATE_COMMAND    git submodule update --init --recursive
   #--Configure step-------------

VERSION

@@ -1 +1 @@
-3.2.1
+3.3.0

opendm/multispectral.py

@@ -181,8 +181,13 @@ def get_primary_band_name(multi_camera, user_band_name):
     if len(multi_camera) < 1:
         raise Exception("Invalid multi_camera list")
 
-    # multi_camera is already sorted by band_index
+    # Pick RGB, or Green, or Blue, in this order, if available, otherwise first band
     if user_band_name == "auto":
+        for aliases in [['rgb', 'redgreenblue'], ['green', 'g'], ['blue', 'b']]:
+            for band in multi_camera:
+                if band['name'].lower() in aliases:
+                    return band['name']
+
         return multi_camera[0]['name']
 
     for band in multi_camera:

opendm/photo.py

@@ -925,3 +925,6 @@ def get_capture_megapixels(self):
             return self.width * self.height / 1e6
         else:
             return 0.0
+
+    def is_make_model(self, make, model):
+        return self.camera_make.lower() == make.lower() and self.camera_model.lower() == model.lower()

opendm/types.py

@@ -27,7 +27,7 @@ def __init__(self, photos):
         self.gcp = None
         self.multi_camera = self.detect_multi_camera()
         self.filter_photos()
-
+        
     def detect_multi_camera(self):
         """
         Looks at the reconstruction photos and determines if this
@@ -58,8 +58,40 @@ def detect_multi_camera(self):
             for band_name in band_indexes:
                 mc.append({'name': band_name, 'photos': band_photos[band_name]})
 
-            # Sort by band index
-            mc.sort(key=lambda x: band_indexes[x['name']])
+            # We enforce a normalized band order for all bands that we can identify
+            # and rely on the manufacturer's band_indexes as a fallback for all others
+            normalized_band_order = {
+                'RGB': '0',
+                'REDGREENBLUE': '0',
+
+                'RED': '1',
+                'R': '1',
+
+                'GREEN': '2',
+                'G': '2',
+
+                'BLUE': '3',
+                'B': '3',
+
+                'NIR': '4',
+                'N': '4',
+
+                'REDEDGE': '5',
+                'RE': '5',
+
+                'LWIR': '6',
+                'L': '6',
+            }
+
+            for band_name in band_indexes:
+                if band_name.upper() not in normalized_band_order:
+                    log.ODM_WARNING(f"Cannot identify order for {band_name} band, using manufacturer suggested index instead")
+
+            # Sort
+            mc.sort(key=lambda x: normalized_band_order.get(x['name'].upper(), '9' + band_indexes[x['name']]))
+
+            for c, d in enumerate(mc):
+                log.ODM_INFO(f"Band {c + 1}: {d['name']}")
 
             return mc
 
@@ -82,6 +114,12 @@ def filter_photos(self):
             if 'rgb' in bands or 'redgreenblue' in bands:
                 if 'red' in bands and 'green' in bands and 'blue' in bands:
                     bands_to_remove.append(bands['rgb'] if 'rgb' in bands else bands['redgreenblue'])
+
+                # Mavic 3M's RGB camera lens are too different than the multispectral ones
+                # so we drop the RGB channel instead
+                elif self.photos[0].is_make_model("DJI", "M3M") and 'red' in bands and 'green' in bands:
+                    bands_to_remove.append(bands['rgb'] if 'rgb' in bands else bands['redgreenblue'])
+
                 else:
                     for b in ['red', 'green', 'blue']:
                         if b in bands: