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One-stage object detection is commonly implemented by optimizing two sub-tasks: object classification and localization, using heads with two parallel branches, which might lead to a certain level of spatial misalignment in predictions…

计算机视觉与模式识别 · 计算机科学 2021-08-31 Chengjian Feng , Yujie Zhong , Yu Gao , Matthew R. Scott , Weilin Huang

Although the anchor-based detectors have taken a big step forward in pedestrian detection, the overall performance of algorithm still needs further improvement for practical applications, \emph{e.g.}, a good trade-off between the accuracy…

计算机视觉与模式识别 · 计算机科学 2020-07-28 Chubin Zhuang , Zhen Lei , Stan Z. Li

Real-time single-stage object detectors based on deep learning still remain less accurate than more complex ones. The trade-off between model performance and computational speed is a major challenge. In this paper, we propose a new way to…

计算机视觉与模式识别 · 计算机科学 2020-03-18 Florian Chabot , Quoc-Cuong Pham , Mohamed Chaouch

Region-based convolutional neural networks (R-CNN)~\cite{fast_rcnn,faster_rcnn,mask_rcnn} have largely dominated object detection. Operators defined on RoIs (Region of Interests) play an important role in R-CNNs such as…

计算机视觉与模式识别 · 计算机科学 2018-07-10 Bo Li , Tianfu Wu , Lun Zhang , Rufeng Chu

A few lightweight convolutional neural network (CNN) models have been recently designed for remote sensing object detection (RSOD). However, most of them simply replace vanilla convolutions with stacked separable convolutions, which may not…

计算机视觉与模式识别 · 计算机科学 2022-09-19 Zhanchao Huang , Wei Li , Xiang-Gen Xia , Hao Wang , Feiran Jie , Ran Tao

Jointly integrating aspect ratio and context has been extensively studied and shown performance improvement in traditional object detection systems such as the DPMs. It, however, has been largely ignored in deep neural network based…

计算机视觉与模式识别 · 计算机科学 2017-03-23 Bo Li , Tianfu Wu , Shuai Shao , Lun Zhang , Rufeng Chu

Most of object detection algorithms can be categorized into two classes: two-stage detectors and one-stage detectors. Recently, many efforts have been devoted to one-stage detectors for the simple yet effective architecture. Different from…

计算机视觉与模式识别 · 计算机科学 2020-04-14 Qi Qian , Lei Chen , Hao Li , Rong Jin

We present DAFNe, a Dense one-stage Anchor-Free deep Network for oriented object detection. As a one-stage model, it performs bounding box predictions on a dense grid over the input image, being architecturally simpler in design, as well as…

计算机视觉与模式识别 · 计算机科学 2022-05-31 Steven Lang , Fabrizio Ventola , Kristian Kersting

Object detection, a pivotal task in computer vision, is frequently hindered by dataset imbalances, particularly the under-explored issue of foreground-foreground class imbalance. This lack of attention to foreground-foreground class…

计算机视觉与模式识别 · 计算机科学 2024-03-13 Nieves Crasto

RetinaNet proposed Focal Loss for classification task and improved one-stage detectors greatly. However, there is still a gap between it and two-stage detectors. We analyze the prediction of RetinaNet and find that the misalignment of…

计算机视觉与模式识别 · 计算机科学 2020-11-23 Wu Kehe , Chen Zuge , Zhang Xiaoliang , Li Wei

Presently, the task of few-shot object detection (FSOD) in remote sensing images (RSIs) has become a focal point of attention. Numerous few-shot detectors, particularly those based on two-stage detectors, face challenges when dealing with…

计算机视觉与模式识别 · 计算机科学 2024-06-18 Wenbin Guan , Zijiu Yang , Xiaohong Wu , Liqiong Chen , Feng Huang , Xiaohai He , Honggang Chen

Single-stage detectors suffer from extreme foreground-background class imbalance, while two-stage detectors do not. Therefore, in semi-supervised object detection, two-stage detectors can deliver remarkable performance by only selecting…

计算机视觉与模式识别 · 计算机科学 2022-04-12 Yueming Zhang , Xingxu Yao , Chao Liu , Feng Chen , Xiaolin Song , Tengfei Xing , Runbo Hu , Hua Chai , Pengfei Xu , Guoshan Zhang

Domain shift is a major challenge for object detectors to generalize well to real world applications. Emerging techniques of domain adaptation for two-stage detectors help to tackle this problem. However, two-stage detectors are not the…

计算机视觉与模式识别 · 计算机科学 2021-07-06 Shizhao Zhang , Hongya Tuo , Jian Hu , Zhongliang Jing

Object detection aims to localize and classify the objects in a given image, and these two tasks are sensitive to different object regions. Therefore, some locations predict high-quality bounding boxes but low classification scores, and…

计算机视觉与模式识别 · 计算机科学 2022-05-03 Yang Yang , Min Li , Bo Meng , Junxing Ren , Degang Sun , Zihao Huang

End-to-end region-based object detectors like Sparse R-CNN usually have multiple cascade bounding box decoding stages, which refine the current predictions according to their previous results. Model parameters within each stage are…

计算机视觉与模式识别 · 计算机科学 2023-07-26 Jing Zhao , Li Sun , Qingli Li

We propose a novel and flexible anchor mechanism named MetaAnchor for object detection frameworks. Unlike many previous detectors model anchors via a predefined manner, in MetaAnchor anchor functions could be dynamically generated from the…

计算机视觉与模式识别 · 计算机科学 2018-11-07 Tong Yang , Xiangyu Zhang , Zeming Li , Wenqiang Zhang , Jian Sun

One-stage object detectors such as SSD or YOLO already have shown promising accuracy with small memory footprint and fast speed. However, it is widely recognized that one-stage detectors have difficulty in detecting small objects while they…

计算机视觉与模式识别 · 计算机科学 2017-09-19 Sanghyun Woo , Soonmin Hwang , In So Kweon

Rotated object detection aims to identify and locate objects in images with arbitrary orientation. In this scenario, the oriented directions of objects vary considerably across different images, while multiple orientations of objects exist…

计算机视觉与模式识别 · 计算机科学 2023-09-22 Yifan Pu , Yiru Wang , Zhuofan Xia , Yizeng Han , Yulin Wang , Weihao Gan , Zidong Wang , Shiji Song , Gao Huang

Inverted bottleneck layers, which are built upon depthwise convolutions, have been the predominant building blocks in state-of-the-art object detection models on mobile devices. In this work, we investigate the optimality of this design…

计算机视觉与模式识别 · 计算机科学 2021-04-01 Yunyang Xiong , Hanxiao Liu , Suyog Gupta , Berkin Akin , Gabriel Bender , Yongzhe Wang , Pieter-Jan Kindermans , Mingxing Tan , Vikas Singh , Bo Chen

Driven by the simple and effective Dense O2O, DEIM demonstrates faster convergence and enhanced performance. In this work, we extend it with DINOv3 features, resulting in DEIMv2. DEIMv2 spans eight model sizes from X to Atto, covering GPU,…

计算机视觉与模式识别 · 计算机科学 2026-01-27 Shihua Huang , Yongjie Hou , Longfei Liu , Xuanlong Yu , Xi Shen