Simon Willison’s Weblog

Looking for tennis courts on aerial photos. ahathereitis.com shows a map of tennis courts in the Bay Area, identified using computer vision techniques (with OpenCV) applied to satellite photos.

Posted 5th December 2009 at 8:56 am

Recent articles

How Rob Pike got spammed with an AI slop "act of kindness" - 26th December 2025
A new way to extract detailed transcripts from Claude Code - 25th December 2025
Cooking with Claude - 23rd December 2025

computer-vision 13 opencv 3 satellite 3 tennis 1

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