alphaearth_foundations_change_detection
Installation
SKILL.md
See introduction in alphaearth_foundations_core.
1. Basic Dot Product (Cosine Similarity) & Visualization
Because the bands in GOOGLE/SATELLITE_EMBEDDING/V1/ANNUAL are already unit vectors, their cosine similarity (dot product) is calculated simply by element-wise multiplication followed by a band sum.
To select input, use .first() for point-based queries or .mosaic() for
larger geographic regions.
dataset = ee.ImageCollection('GOOGLE/SATELLITE_EMBEDDING/V1/ANNUAL')
# --- OPTION A: For a Point of Interest (POI) ---
point = ee.Geometry.Point([-121.8036, 39.0372])