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Optical flow is an easily conceived and precious cue for advancing unsupervised video object segmentation (UVOS). Most of the previous methods directly extract and fuse the motion and appearance features for segmenting target objects in the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Gensheng Pei , Fumin Shen , Yazhou Yao , Guo-Sen Xie , Zhenmin Tang , Jinhui Tang

Feature Pyramid Network (FPN) has been an essential module for object detection models to consider various scales of an object. However, average precision (AP) on small objects is relatively lower than AP on medium and large objects. The…

Computer Vision and Pattern Recognition · Computer Science 2022-08-26 Hye-Jin Park , Young-Ju Choi , Young-Woon Lee , Byung-Gyu Kim

Currently, one-stage frameworks have been widely applied for temporal action detection, but they still suffer from the challenge that the action instances span a wide range of time. The reason is that these one-stage detectors, e.g., Single…

Computer Vision and Pattern Recognition · Computer Science 2020-08-10 Xiang Wang , Changxin Gao , Shiwei Zhang , Nong Sang

Fine-grained remote sensing datasets often use hierarchical label structures to differentiate objects in a coarse-to-fine manner, with each object annotated across multiple levels. However, embedding this semantic hierarchy into the…

Computer Vision and Pattern Recognition · Computer Science 2026-01-01 Jingzhou Chen , Dexin Chen , Fengchao Xiong , Yuntao Qian , Liang Xiao

Traditional deep learning relies on end-to-end backpropagation for training, but it suffers from drawbacks such as high memory consumption and not aligning with biological neural networks. Recent advancements have introduced locally…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Junhao Su , Chenghao He , Feiyu Zhu , Xiaojie Xu , Dongzhi Guan , Chenyang Si

The complex nature of combining localization and classification in object detection has resulted in the flourished development of methods. Previous works tried to improve the performance in various object detection heads but failed to…

Computer Vision and Pattern Recognition · Computer Science 2021-06-16 Xiyang Dai , Yinpeng Chen , Bin Xiao , Dongdong Chen , Mengchen Liu , Lu Yuan , Lei Zhang

In this paper, we present an implicit feature pyramid network (i-FPN) for object detection. Existing FPNs stack several cross-scale blocks to obtain large receptive field. We propose to use an implicit function, recently introduced in deep…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Tiancai Wang , Xiangyu Zhang , Jian Sun

Feature pyramid has been an efficient method to extract features at different scales. Development over this method mainly focuses on aggregating contextual information at different levels while seldom touching the inter-level correlation in…

Computer Vision and Pattern Recognition · Computer Science 2020-05-08 Xinjiang Wang , Shilong Zhang , Zhuoran Yu , Litong Feng , Wayne Zhang

The rapid advancement of generative adversarial networks (GANs) and diffusion models has enabled the creation of highly realistic deepfake content, posing significant threats to digital trust across audio-visual domains. While unimodal…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Chende Zheng , Ruiqi Suo , Zhoulin Ji , Jingyi Deng , Fangbin Yi , Chenhao Lin , Chao Shen

With its high sensitivity, the Pyramid wavefront sensor (PyWFS) is becoming an advantageous sensor for astronomical adaptive optics (AO) systems. However, this sensor exhibits significant non-linear behaviours leading to challenging AO…

Instrumentation and Methods for Astrophysics · Physics 2021-05-12 Vincent Chambouleyron , Olivier Fauvarque , Jean-François Sauvage , Benoît Neichel , Thierry Fusco

Change detection (CD) has extensive applications and is a crucial method for identifying and localizing target changes. In recent years, various CD methods represented by convolutional neural network (CNN) and transformer have achieved…

Image and Video Processing · Electrical Eng. & Systems 2026-03-11 Chengming Wang , Peng Duan , Jinjiang Li

The rapid progress in deep generative models has led to the creation of incredibly realistic synthetic images that are becoming increasingly difficult to distinguish from real-world data. The widespread use of Variational Models, Diffusion…

Computer Vision and Pattern Recognition · Computer Science 2025-01-13 Anant Mehta , Bryant McArthur , Nagarjuna Kolloju , Zhengzhong Tu

We present consistent optimization for single stage object detection. Previous works of single stage object detectors usually rely on the regular, dense sampled anchors to generate hypothesis for the optimization of the model. Through an…

Computer Vision and Pattern Recognition · Computer Science 2019-01-24 Tao Kong , Fuchun Sun , Huaping Liu , Yuning Jiang , Jianbo Shi

Gravitational wave astronomy is a vibrant field that leverages both classic and modern data processing techniques for the understanding of the universe. Various approaches have been proposed for improving the efficiency of the detection…

Instrumentation and Methods for Astrophysics · Physics 2022-10-05 Jingkai Yan , Robert Colgan , John Wright , Zsuzsa Márka , Imre Bartos , Szabolcs Márka

Region Proposal Network (RPN) provides strong support for handling the scale variation of objects in two-stage object detection. For one-stage detectors which do not have RPN, it is more demanding to have powerful sub-networks capable of…

Computer Vision and Pattern Recognition · Computer Science 2020-10-26 Yujie Zhong , Zelu Deng , Sheng Guo , Matthew R. Scott , Weilin Huang

There has been significant progresses for image object detection in recent years. Nevertheless, video object detection has received little attention, although it is more challenging and more important in practical scenarios. Built upon the…

Computer Vision and Pattern Recognition · Computer Science 2017-12-01 Xizhou Zhu , Jifeng Dai , Lu Yuan , Yichen Wei

General-purpose object detectors face fundamental structural limitations when applied to ship detection in satellite imagery, where the ship scale distribution is concentrated at small sizes and high aspect ratios. In conventional You Only…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Seon-Hoon Kim , Yerin Kim , Hyeji Sim , Youeyun Jung , Okchul Jung , Daewon Chung

The multi-scale defect detection for photovoltaic (PV) cell electroluminescence (EL) images is a challenging task, due to the feature vanishing as network deepens. To address this problem, an attention-based top-down and bottom-up…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Binyi Su , Haiyong Chen , Zhong Zhou

Recent researches attempt to improve the detection performance by adopting the idea of cascade for single-stage detectors. In this paper, we analyze and discover that inconsistency is the major factor limiting the performance. The refined…

Computer Vision and Pattern Recognition · Computer Science 2019-07-17 Hongkai Zhang , Hong Chang , Bingpeng Ma , Shiguang Shan , Xilin Chen

Unsupervised domain adaptation is critical in various computer vision tasks, such as object detection, instance segmentation, etc. They attempt to reduce domain bias-induced performance degradation while also promoting model application…

Computer Vision and Pattern Recognition · Computer Science 2022-06-14 Lijun Gou , Jinrong Yang , Hangcheng Yu , Pan Wang , Xiaoping Li , Chao Deng