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Object detection in aerial imagery presents a significant challenge due to large scale variations among objects. This paper proposes an evolutionary reinforcement learning agent, integrated within a coarse-to-fine object detection…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Jialu Zhang , Xiaoying Yang , Wentao He , Jianfeng Ren , Qian Zhang , Titian Zhao , Ruibin Bai , Xiangjian He , Jiang Liu

Recently, one-stage detectors have achieved competitive accuracy and faster speed compared with traditional two-stage detectors on image data. However, in the field of video object detection (VOD), most existing VOD methods are still based…

Computer Vision and Pattern Recognition · Computer Science 2024-02-15 Guanxiong Sun , Yang Hua , Guosheng Hu , Neil Robertson

Modern object detection methods can be divided into one-stage approaches and two-stage ones. One-stage detectors are more efficient owing to straightforward architectures, but the two-stage detectors still take the lead in accuracy.…

Computer Vision and Pattern Recognition · Computer Science 2020-09-25 Xin Lu , Quanquan Li , Buyu Li , Junjie Yan

Object detection has been vigorously investigated for years but fast accurate detection for real-world scenes remains a very challenging problem. Overcoming drawbacks of single-stage detectors, we take aim at precisely detecting objects for…

Computer Vision and Pattern Recognition · Computer Science 2020-03-16 Xingyu Chen , Junzhi Yu , Shihan Kong , Zhengxing Wu , Li Wen

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,…

Computer Vision and Pattern Recognition · Computer Science 2019-08-21 Zhi Tian , Chunhua Shen , Hao Chen , Tong He

Recently, many researchers have attempted to improve deep learning-based object detection models, both in terms of accuracy and operational speeds. However, frequently, there is a trade-off between speed and accuracy of such models, which…

Computer Vision and Pattern Recognition · Computer Science 2020-12-03 Sannidhi P Kumar , Chandan Gautam , Suresh Sundaram

Recently, one-stage object detectors gain much attention due to their simplicity in practice. Its fully convolutional nature greatly reduces the difficulty of training and deployment compared with two-stage detectors which require NMS and…

Computer Vision and Pattern Recognition · Computer Science 2019-08-06 Yuntao Chen , Chenxia Han , Naiyan Wang , Zhaoxiang Zhang

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…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Chubin Zhuang , Zhen Lei , Stan Z. Li

Recently, the joint design of optical systems and downstream algorithms is showing significant potential. However, existing rays-described methods are limited to optimizing geometric degradation, making it difficult to fully represent the…

Computer Vision and Pattern Recognition · Computer Science 2024-12-24 Zheng Ren , Jingwen Zhou , Wenguan Zhang , Jiapu Yan , Bingkun Chen , Huajun Feng , Shiqi Chen

Although two-stage object detectors have continuously advanced the state-of-the-art performance in recent years, the training process itself is far from crystal. In this work, we first point out the inconsistency problem between the fixed…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Hongkai Zhang , Hong Chang , Bingpeng Ma , Naiyan Wang , Xilin Chen

Rotation detection is a challenging task due to the difficulties of locating the multi-angle objects and separating them effectively from the background. Though considerable progress has been made, for practical settings, there still exist…

Computer Vision and Pattern Recognition · Computer Science 2020-12-09 Xue Yang , Junchi Yan , Ziming Feng , Tao He

In computer vision, object detection is one of most important tasks, which underpins a few instance-level recognition tasks and many downstream applications. Recently one-stage methods have gained much attention over two-stage approaches…

Computer Vision and Pattern Recognition · Computer Science 2020-10-13 Zhi Tian , Chunhua Shen , Hao Chen , Tong He

This paper summarizes model improvements and inference-time optimizations for the popular anchor-based detectors in the scenes of autonomous driving. Based on the high-performing RCNN-RS and RetinaNet-RS detection frameworks designed for…

Computer Vision and Pattern Recognition · Computer Science 2022-08-15 Xianzhi Du , Wei-Chih Hung , Tsung-Yi Lin

Object detection has been one of the most active topics in computer vision for the past years. Recent works have mainly focused on pushing the state-of-the-art in the general-purpose COCO benchmark. However, the use of such detection…

Computer Vision and Pattern Recognition · Computer Science 2021-04-09 Manuel Carranza-García , Pedro Lara-Benítez , Jorge García-Gutiérrez , José C. Riquelme

Existing anchor-based and anchor-free object detectors in multi-stage or one-stage pipelines have achieved very promising detection performance. However, they still encounter the design difficulty in hand-crafted 2D anchor definition and…

Computer Vision and Pattern Recognition · Computer Science 2020-05-13 Geng Zhan , Dan Xu , Guo Lu , Wei Wu , Chunhua Shen , Wanli Ouyang

The speed-accuracy Pareto curve of object detection systems have advanced through a combination of better model architectures, training and inference methods. In this paper, we methodically evaluate a variety of these techniques to…

Computer Vision and Pattern Recognition · Computer Science 2021-07-02 Xianzhi Du , Barret Zoph , Wei-Chih Hung , Tsung-Yi Lin

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…

Computer Vision and Pattern Recognition · Computer Science 2020-03-18 Florian Chabot , Quoc-Cuong Pham , Mohamed Chaouch

A simple modification method for single-stage generic object detection neural networks, such as YOLO and SSD, is proposed, which allows for improving the detection accuracy on video data by exploiting the temporal behavior of the scene in…

Computer Vision and Pattern Recognition · Computer Science 2020-09-04 Menua Gevorgyan

Most of the recent successful methods in accurate object detection and localization used some variants of R-CNN style two stage Convolutional Neural Networks (CNN) where plausible regions were proposed in the first stage then followed by a…

Computer Vision and Pattern Recognition · Computer Science 2017-04-20 Jimmy Ren , Xiaohao Chen , Jianbo Liu , Wenxiu Sun , Jiahao Pang , Qiong Yan , Yu-Wing Tai , Li Xu

With the improvements in the object detection networks, several variations of object detection networks have been achieved impressive performance. However, the performance evaluation of most models has focused on detection accuracy, and…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Min-Kook Choi , Heechul Jung