Initial commit: World-UAV annotation pipeline

4-modality annotation pipeline (depth, edges, segmentation, chmv2) for 973K
drone/satellite images. SegEarth-OV3 open-vocabulary segmentation with 11
classes optimized for cross-view geo-localization.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

in/config_files/segmentation.gin

@@ -0,0 +1,18 @@
+# Open-vocabulary segmentation parameters
+# 12 cross-view invariant classes for geo-localization
+# See docs/segmentation_class_analysis.md for full rationale
+SegConfig.prompts = [
+    'background',              # 0  — unclassified
+    'building',                # 1  — buildings, rooftops
+    'road',                    # 2  — roads, asphalt
+    'vegetation',              # 3  — trees, bushes, forest canopy
+    'water',                   # 4  — rivers, canals, sea, lakes
+    'sand and gravel ground',  # 5  — soil, gravel, sand, dust, bare earth
+    'rocky terrain',           # 6  — rock, stone, lava, canyon walls
+    'farmland',                # 7  — agricultural terraces, fields
+    'railway',                 # 8  — railway tracks, rails
+    'parking lot',             # 9  — parking areas
+    'sidewalk',                # 10 — sidewalks, pedestrian zones, embankments
+]
+SegConfig.threshold = 0.15
+SegConfig.default_resolution = 1008