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Vision · 2017

Mask R-CNN

The detection workhorse of an era

open source superseded
★ 35k detectron2❝ 33k citationsread 2026-09-03

Latest: Maintained today inside Detectron2

FAIR's instance-segmentation architecture that dominated a research era: extending Faster R-CNN with a mask-prediction branch and RoIAlign, it won the ICCV 2017 Best Paper Award (Marr Prize) and remains a standard baseline and production workhorse for detection and segmentation nearly a decade later.

Why it matters

Mask R-CNN added a mask branch and RoIAlign to Faster R-CNN and became the detection and instance-segmentation workhorse of an era — ICCV 2017 Best Paper, well over 30,000 citations, and still a production baseline nearly a decade later. Kaiming He's FAIR team set the template that Detectron2 and SAM later built on.

Facts

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Lineage

Led toSegment AnythingDetectron2

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Sources

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