# SIMD-accelerated Machine Vision on an ESP32-S3

Recently [shraiwi] decided to have a bit of good nerdy fun and implement the FAST machine vision algorithm on an ESP32-S3 using its SIMD ISA. This involves using the assembly instructions for the ISA, making for an exciting opportunity to become familiar with this part of this Xtensa Lx7-based twin-core MCU. The Features from Accelerated Segment Test (FAST) algorithm is a corner detection method that can determine with reasonable accuracy and in real-time whether a given input frame contains said corners which thus may correspond to objects and other characteristics worthy of note. This is ess

https://hackaday.com/2026/10/27/simd-accelerated-machine-vision-on-an-esp32-s3/

Image: https://hackaday.com/wp-content/uploads/2016/02/computersaretakingover.jpg?w=800

Image: https://hackaday.com/wp-content/uploads/2016/02/computersaretakingover.jpg

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Canonical URL: https://qwibbit.com/q28019

Created: 2026-10-27T11:29:11.368202+00:00

Last edited: 2026-10-27T11:29:11.368202+00:00

Board: 3

Origin: Syndicated

Original source: https://hackaday.com/2026/10/27/simd-accelerated-machine-vision-on-an-esp32-s3/