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Arbitrary-oriented objects widely appear in natural scenes, aerial photographs, remote sensing images, etc., thus arbitrary-oriented object detection has received considerable attention. Many current rotation detectors use plenty of anchors…

Computer Vision and Pattern Recognition · Computer Science 2020-12-16 Qi Ming , Zhiqiang Zhou , Lingjuan Miao , Hongwei Zhang , Linhao Li

Recently, trimap-free methods have drawn increasing attention in human video matting due to their promising performance. Nevertheless, these methods still suffer from the lack of deterministic foreground-background cues, which impairs their…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Huayu Zhang , Dongyue Wu , Yuanjie Shao , Nong Sang , Changxin Gao

Recent real-time detection transformers have gained popularity due to their simplicity and efficiency. However, these detectors do not explicitly model object rotation, especially in remote sensing imagery where objects appear at arbitrary…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Zeyu Ding , Yong Zhou , Jiaqi Zhao , Wen-Liang Du , Xixi Li , Rui Yao , Abdulmotaleb El Saddik

Current mainstream SAR image object detection methods still lack robustness when dealing with unknown objects in open environments. Open-set detection aims to enable detectors trained on a closed set to detect all known objects and identify…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Xiayang Xiao , Zhuoxuan Li , Haipeng Wang

Fine-Grained Object Detection (FGOD) is a critical task in high-resolution aerial image analysis. This letter introduces Orthogonal Mapping (OM), a simple yet effective method aimed at addressing the challenge of semantic confusion inherent…

Computer Vision and Pattern Recognition · Computer Science 2024-07-26 Haoran Zhu , Yifan Zhou , Chang Xu , Ruixiang Zhang , Wen Yang

The Probabilistic Object Detection Challenge evaluates object detection methods using a new evaluation measure, Probability-based Detection Quality (PDQ), on a new synthetic image dataset. We present our submission to the challenge, a…

Computer Vision and Pattern Recognition · Computer Science 2019-10-15 Phil Ammirato , Alexander C. Berg

In this paper, we propose an approach that exploits object segmentation in order to improve the accuracy of object detection. We frame the problem as inference in a Markov Random Field, in which each detection hypothesis scores object…

Computer Vision and Pattern Recognition · Computer Science 2015-02-17 Yukun Zhu , Raquel Urtasun , Ruslan Salakhutdinov , Sanja Fidler

We define and study error detection and correction tasks that are useful for 3D reconstruction of neurons from electron microscopic imagery, and for image segmentation more generally. Both tasks take as input the raw image and a binary mask…

Computer Vision and Pattern Recognition · Computer Science 2017-12-05 Jonathan Zung , Ignacio Tartavull , Kisuk Lee , H. Sebastian Seung

We consider the problem of online min-cost perfect matching with concave delays. We begin with the single location variant. Specifically, requests arrive in an online fashion at a single location. The algorithm must then choose between…

Data Structures and Algorithms · Computer Science 2020-11-05 Yossi Azar , Runtian Ren , Danny Vainstein

The orthogonal matching pursuit (OMP) algorithm is a commonly used algorithm for recovering $K$-sparse signals $\x\in \mathbb{R}^{n}$ from linear model $\y=\A\x$, where $\A\in \mathbb{R}^{m\times n}$ is a sensing matrix. A fundamental…

Information Theory · Computer Science 2019-04-23 Jinming Wen , Wei Yu

The high peak-to-average-power ratio (PAPR) of orthogonal frequency-division multiplexing (OFDM) degrades the performance in optical wireless communication systems. This paper proposes a modified asymmetrically clipped optical OFDM…

Information Theory · Computer Science 2015-01-14 W. Xu , M. Wu , H. Zhang , X. You , C. Zhao

We propose a fast sequential algorithm for the fundamental problem of estimating frequencies and amplitudes of a noisy mixture of sinusoids. The algorithm is a natural generalization of Orthogonal Matching Pursuit (OMP) to the continuum…

Information Theory · Computer Science 2016-08-24 Babak Mamandipoor , Dinesh Ramasamy , Upamanyu Madhow

The simultaneous orthogonal matching pursuit (SOMP) algorithm aims to find the joint support of a set of sparse signals acquired under a multiple measurement vector model. Critically, the analysis of SOMP depends on the maximal inner…

Information Theory · Computer Science 2016-10-14 Jean-François Determe , Jérôme Louveaux , Laurent Jacques , François Horlin

Object detection is an algorithm that recognizes and locates the objects in the image and has a wide range of applications in the visual understanding of complex urban scenes. Existing object detection benchmarks mainly focus on a single…

Computer Vision and Pattern Recognition · Computer Science 2022-03-14 Yaowei Wang , Zhouxin Yang , Rui Liu , Deng Li , Yuandu Lai , Leyuan Fang , Yahong Han

Orthogonal matching pursuit (OMP) is a widely used greedy algorithm for sparse signal recovery in compressed sensing (CS). Prior work on OMP, however, has only provided reconstruction guarantees under the assumption that the columns of the…

Signal Processing · Electrical Eng. & Systems 2023-03-03 Hamed Masoumi , Michel Verhaegen , Nitin Jonathan Myers

Minimum Attention Control (MAC) is a control technique that provides minimal input changes to meet the control objective. Mathematically, the zero norm of the input changes is used as a constraint for the given control objective and…

Systems and Control · Electrical Eng. & Systems 2025-07-31 Ganesh Teja Theertham , Santhosh Kumar Varanasi , Phanindra Jampana

Class-Agnostic object Counting (CAC) involves counting instances of objects from arbitrary classes within an image. Due to its practical importance, CAC has received increasing attention in recent years. Most existing methods assume a…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Michail Spanakis , Iason Oikonomidis , Antonis Argyros

We consider the problem of detecting multiple changepoints in large data sets. Our focus is on applications where the number of changepoints will increase as we collect more data: for example in genetics as we analyse larger regions of the…

Methodology · Statistics 2015-03-17 R. Killick , P. Fearnhead , I. A. Eckley

State-of-the-art Object Detection (OD) methods predominantly operate under a closed-world assumption, where test-time categories match those encountered during training. However, detecting and localizing unknown objects is crucial for…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Daniel Montoya , Aymen Bouguerra , Alexandra Gomez-Villa , Fabio Arnez

In this paper, we explore a novel image matting task aimed at achieving efficient inference under various computational cost constraints, specifically FLOP limitations, using a single matting network. Existing matting methods which have not…

Computer Vision and Pattern Recognition · Computer Science 2025-03-06 Qinglin Liu , Zonglin Li , Xiaoqian Lv , Xin Sun , Ru Li , Shengping Zhang