Google has added a splash of colour and detail to its larger-scale map layers, using a “color-mapping algorithmic technique” to assign colours to more natural features like forest cover and deserts. “First, we use computer vision to identify natural features from our satellite imagery, looking specifically at arid, icy, forested, and mountainous regions. We then analyze these features and assign them a range of colors on the HSV color model. For example, a densely covered forest can be classified as dark green, while an area of patchy shrubs could appear as a lighter shade of green.” Meanwhile, cities get more pedestrian data, such as crosswalks and sidewalks. [Engadget, The Verge]
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