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Related papers: VarifocalNet: An IoU-aware Dense Object Detector

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In object detection, determining which anchors to assign as positive or negative samples, known as anchor assignment, has been revealed as a core procedure that can significantly affect a model's performance. In this paper we propose a…

Computer Vision and Pattern Recognition · Computer Science 2020-09-08 Kang Kim , Hee Seok Lee

Object detection is a famous branch of research in computer vision, many state of the art object detection algorithms have been introduced in the recent past, but how good are those object detectors when it comes to dense object detection?…

Computer Vision and Pattern Recognition · Computer Science 2020-05-01 Sonaal Kant

Object localization in general environments is a fundamental part of vision systems. While dominating on the COCO benchmark, recent Transformer-based detection methods are not competitive in diverse domains. Moreover, these methods still…

Computer Vision and Pattern Recognition · Computer Science 2023-07-21 Mingqiao Ye , Lei Ke , Siyuan Li , Yu-Wing Tai , Chi-Keung Tang , Martin Danelljan , Fisher Yu

In object detection with deep neural networks, the box-wise objectness score tends to be overconfident, sometimes even indicating high confidence in presence of inaccurate predictions. Hence, the reliability of the prediction and therefore…

Computer Vision and Pattern Recognition · Computer Science 2020-10-07 Marius Schubert , Karsten Kahl , Matthias Rottmann

We demonstrate that many detection methods are designed to identify only a sufficently accurate bounding box, rather than the best available one. To address this issue we propose a simple and fast modification to the existing methods called…

Computer Vision and Pattern Recognition · Computer Science 2018-03-14 Lachlan Tychsen-Smith , Lars Petersson

In object detection, an intersection over union (IoU) threshold is required to define positives and negatives. An object detector, trained with low IoU threshold, e.g. 0.5, usually produces noisy detections. However, detection performance…

Computer Vision and Pattern Recognition · Computer Science 2017-12-05 Zhaowei Cai , Nuno Vasconcelos

Weakly supervised learning has emerged as a compelling tool for object detection by reducing the need for strong supervision during training. However, major challenges remain: (1) differentiation of object instances can be ambiguous; (2)…

Computer Vision and Pattern Recognition · Computer Science 2020-10-22 Zhongzheng Ren , Zhiding Yu , Xiaodong Yang , Ming-Yu Liu , Yong Jae Lee , Alexander G. Schwing , Jan Kautz

Object detection is an important part in the field of computer vision, and the effect of object detection is directly determined by the regression accuracy of the prediction box. As the key to model training, IoU (Intersection over Union)…

Computer Vision and Pattern Recognition · Computer Science 2024-08-14 Xiangjie Luo , Zhihao Cai , Bo Shao , Yingxun Wang

Object detection systems based on the deep convolutional neural network (CNN) have recently made ground- breaking advances on several object detection benchmarks. While the features learned by these high-capacity neural networks are…

Computer Vision and Pattern Recognition · Computer Science 2016-01-15 Yuting Zhang , Kihyuk Sohn , Ruben Villegas , Gang Pan , Honglak Lee

Recent advances in camera equipped drone applications and their widespread use increased the demand on vision based object detection algorithms for aerial images. Object detection process is inherently a challenging task as a generic…

Computer Vision and Pattern Recognition · Computer Science 2020-12-25 Berat Mert Albaba , Sedat Ozer

Recent advances in AI-driven image generation have introduced new challenges for verifying the authenticity of digital evidence in forensic investigations. Modern generative models can produce visually consistent forgeries that evade…

Computer Vision and Pattern Recognition · Computer Science 2025-12-18 Opeyemi Bamigbade , Mark Scanlon , John Sheppard

The loss function for bounding box regression (BBR) is essential to object detection. Its good definition will bring significant performance improvement to the model. Most existing works assume that the examples in the training data are…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Zanjia Tong , Yuhang Chen , Zewei Xu , Rong Yu

State-of-the-art object detectors rely on regressing and classifying an extensive list of possible anchors, which are divided into positive and negative samples based on their intersection-over-union (IoU) with corresponding groundtruth…

Computer Vision and Pattern Recognition · Computer Science 2020-06-01 Hengduo Li , Zuxuan Wu , Chen Zhu , Caiming Xiong , Richard Socher , Larry S. Davis

We propose Rank & Sort (RS) Loss, a ranking-based loss function to train deep object detection and instance segmentation methods (i.e. visual detectors). RS Loss supervises the classifier, a sub-network of these methods, to rank each…

Computer Vision and Pattern Recognition · Computer Science 2021-08-31 Kemal Oksuz , Baris Can Cam , Emre Akbas , Sinan Kalkan

Modern detection transformers (DETRs) use a set of object queries to predict a list of bounding boxes, sort them by their classification confidence scores, and select the top-ranked predictions as the final detection results for the given…

Computer Vision and Pattern Recognition · Computer Science 2023-11-06 Yifan Pu , Weicong Liang , Yiduo Hao , Yuhui Yuan , Yukang Yang , Chao Zhang , Han Hu , Gao Huang

Determining positive/negative samples for object detection is known as label assignment. Here we present an anchor-free detector named AutoAssign. It requires little human knowledge and achieves appearance-aware through a fully…

Computer Vision and Pattern Recognition · Computer Science 2020-11-26 Benjin Zhu , Jianfeng Wang , Zhengkai Jiang , Fuhang Zong , Songtao Liu , Zeming Li , Jian Sun

Object detection remains as one of the most notorious open problems in computer vision. Despite large strides in accuracy in recent years, modern object detectors have started to saturate on popular benchmarks raising the question of how…

Computer Vision and Pattern Recognition · Computer Science 2020-04-08 Ali Borji

This paper aims to classify and locate objects accurately and efficiently, without using bounding box annotations. It is challenging as objects in the wild could appear at arbitrary locations and in different scales. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2016-04-14 Chen Sun , Manohar Paluri , Ronan Collobert , Ram Nevatia , Lubomir Bourdev

Active learning aims to reduce labeling costs by selecting only the most informative samples on a dataset. Few existing works have addressed active learning for object detection. Most of these methods are based on multiple models or are…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Jiwoong Choi , Ismail Elezi , Hyuk-Jae Lee , Clement Farabet , Jose M. Alvarez

Bounding box regression plays a crucial role in the field of object detection, and the positioning accuracy of object detection largely depends on the loss function of bounding box regression. Existing researchs improve regression…

Computer Vision and Pattern Recognition · Computer Science 2024-01-22 Hao Zhang , Shuaijie Zhang