Cited by 7,013Advanced Neural Network ApplicationsVisual Attention and Saliency DetectionDomain Adaptation and Few-Shot Learning

FCOS: Fully Convolutional One-Stage Object Detection

Open access
Tian, Zhi, Shen, Chunhua, Chen, Hao, He, Tong·2019·2019 IEEE/CVF International Conference on Computer Vision (ICCV)

Abstract

We propose a fully convolutional one-stage object detector (FCOS) to solve object detection in a per-pixel prediction fashion, analogue to semantic segmentation. Almost all state-of-the-art object detectors such as RetinaNet, SSD, YOLOv3, and Faster R-CNN rely on pre-defined anchor boxes. In contrast, our proposed detector FCOS is anchor box free, as well as proposal free. By eliminating the pre-defined set of anchor boxes, FCOS completely avoids the complicated computation related to anchor boxes such as calculating overlapping during training. More importantly, we also avoid all hyper-parameters related to anchor boxes, which are often very sensitive to the final detection performance. With the only post-processing non-maximum suppression (NMS), FCOS with ResNeXt-64x4d-101 achieves 44.7% in AP with single-model and single-scale testing, surpassing previous one-stage detectors with the advantage of being much simpler. For the first time, we demonstrate a much simpler and flexible detection framework achieving improved detection accuracy. We hope that the proposed FCOS framework can serve as a simple and strong alternative for many other instance-level tasks. Code is available at: https://tinyurl.com/FCOSv1.

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  • The feature pyramid decoder better aggregates multi-resolution features at different network levels for grading placental maturity.

    “Inspired by [41], we introduced a feature pyramid decoder (FPD) to better aggregate multi-resolution features at different network levels for grading the placental maturity.”
  • Existing 2D-based methods predict 3D information like object pose and velocity using an object detection pipeline designed for 2D tasks (e.g., CenterNet, FCOS), without considering 3D scene structure or sensor configuration.

    “That is, they predict 3D information like object pose and velocity using an object detection pipeline designed for 2D tasks (e.g., CenterNet [1], FCOS [3]), without considering 3D scene structure or sensor configuration.”

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1 of the 34 references couldn’t be matched to a known paper.

Research works printed but not linked: 3

  1. Lokesh Boominathan, Srinivas SS Kruthiventi, and R Venkatesh Babu. Crowdnet: A deep convolutional network for dense crowd counting. In Proc. ACM Int. Conf. Multimedia, pages 640-644. ACM, 2016.
  2. Ross Girshick. Fast R-CNN. In Proc. IEEE Conf. Comp. Vis. Patt. Recogn., pages 1440-1448, 2015.
  3. Wei Yin, Yifan Liu, Chunhua Shen, and Youliang Yan. En- forcing geometric constraints of virtual normal for depth pre- diction. In Proc. IEEE Int. Conf. Comp. Vis., 2019.

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Authors
Tian, Z., Shen, C., Chen, H., & He, T.
Affiliations
The University of Adelaide (AU)
Venue
2019 IEEE/CVF International Conference on Computer Vision (ICCV)
Publisher
IEEE
Published
2019-10
Pages
9626-9635
OpenAlex
W2982770724
Cited by
7,013
References
34
Citations by year
2026: 591 · 2025: 977 · 2024: 1403 · 2023: 1476 · 2022: 1212 · 2021: 921 · 2020: 386 · 2019: 45 · 2018: 1
FWCI
209.06
Type
conference paper
Language
en
Open access
Locations
  • IEEE/CVF International Conference on Computer Vision (ICCV) (publishedVersion)
  • arXiv (Cornell University) (submittedVersion, cc-by-nc-sa)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Neural Network Applications
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Visual Attention and Saliency Detection
  • Physical Sciences › Computer Science › Artificial Intelligence › Domain Adaptation and Few-Shot Learning
Keywords
FCOS, one-stage object detection, anchor-free detection, fully convolutional network, non-maximum suppression, instance segmentation

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