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Instance recognition is rapidly advanced along with the developments of various deep convolutional neural networks. Compared to the architectures of networks, the training process, which is also crucial to the success of detectors, has…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Jiangmiao Pang , Kai Chen , Qi Li , Zhihai Xu , Huajun Feng , Jianping Shi , Wanli Ouyang , Dahua Lin

We present Siam R-CNN, a Siamese re-detection architecture which unleashes the full power of two-stage object detection approaches for visual object tracking. We combine this with a novel tracklet-based dynamic programming algorithm, which…

Computer Vision and Pattern Recognition · Computer Science 2020-04-03 Paul Voigtlaender , Jonathon Luiten , Philip H. S. Torr , Bastian Leibe

We present Sparse R-CNN, a purely sparse method for object detection in images. Existing works on object detection heavily rely on dense object candidates, such as $k$ anchor boxes pre-defined on all grids of image feature map of size…

Computer Vision and Pattern Recognition · Computer Science 2021-04-27 Peize Sun , Rufeng Zhang , Yi Jiang , Tao Kong , Chenfeng Xu , Wei Zhan , Masayoshi Tomizuka , Lei Li , Zehuan Yuan , Changhu Wang , Ping Luo

We introduce MixTraining, a new training paradigm for object detection that can improve the performance of existing detectors for free. MixTraining enhances data augmentation by utilizing augmentations of different strengths while excluding…

Computer Vision and Pattern Recognition · Computer Science 2021-11-05 Mengde Xu , Zheng Zhang , Fangyun Wei , Yutong Lin , Yue Cao , Stephen Lin , Han Hu , Xiang Bai

Label assignment is a critical component in training dense object detectors. State-of-the-art methods typically assign each training sample a positive and a negative weight, optimizing the assignment scheme during training. However, these…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Ziqian Guan , Xieyi Fu , Yuting Wang , Haowen Xiao , Jiarui Zhu , Yingying Zhu , Yongtao Liu , Lin Gu

Deep learning based methods, especially convolutional neural networks (CNNs) have been successfully applied in the field of single image super-resolution (SISR). To obtain better fidelity and visual quality, most of existing networks are of…

Image and Video Processing · Electrical Eng. & Systems 2021-08-17 Wenbin Xie , Dehua Song , Chang Xu , Chunjing Xu , Hui Zhang , Yunhe Wang

We present an end-to-end framework for fast retraining of object detection models in human-robot-collaboration. Our Faster R-CNN based setup covers the whole workflow of automatic image generation and labeling, model retraining on-site as…

Computer Vision and Pattern Recognition · Computer Science 2022-04-04 Manuela Geiß , Martin Baresch , Georgios Chasparis , Edwin Schweiger , Nico Teringl , Michael Zwick

Label noise poses a serious threat to deep neural networks (DNNs). Employing robust loss functions which reconcile fitting ability with robustness is a simple but effective strategy to handle this problem. However, the widely-used static…

Machine Learning · Computer Science 2023-08-08 Xiu-Chuan Li , Xiaobo Xia , Fei Zhu , Tongliang Liu , Xu-Yao Zhang , Cheng-Lin Liu

Detecting arbitrarily oriented tiny objects poses intense challenges to existing detectors, especially for label assignment. Despite the exploration of adaptive label assignment in recent oriented object detectors, the extreme geometry…

Computer Vision and Pattern Recognition · Computer Science 2023-04-19 Chang Xu , Jian Ding , Jinwang Wang , Wen Yang , Huai Yu , Lei Yu , Gui-Song Xia

Object Detection is critical for automatic military operations. However, the performance of current object detection algorithms is deficient in terms of the requirements in military scenarios. This is mainly because the object presence is…

Computer Vision and Pattern Recognition · Computer Science 2017-12-04 Shuo Liu , Zheng Liu

In this work, a novel and model-based artificial neural network (ANN) training method is developed supported by optimal control theory. The method augments training labels in order to robustly guarantee training loss convergence and improve…

Optimization and Control · Mathematics 2023-03-17 Viktor Andersson , Balázs Varga , Vincent Szolnoky , Andreas Syrén , Rebecka Jörnsten , Balázs Kulcsár

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

Two-stage detectors have gained much popularity in 3D object detection. Most two-stage 3D detectors utilize grid points, voxel grids, or sampled keypoints for RoI feature extraction in the second stage. Such methods, however, are…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Honghui Yang , Zili Liu , Xiaopei Wu , Wenxiao Wang , Wei Qian , Xiaofei He , Deng Cai

In the presence of large sets of labeled data, Deep Learning (DL) has accomplished extraordinary triumphs in the avenue of computer vision, particularly in object classification and recognition tasks. However, DL cannot always perform well…

Computer Vision and Pattern Recognition · Computer Science 2019-01-03 Mohammad Mahfujur Rahman , Clinton Fookes , Mahsa Baktashmotlagh , Sridha Sridharan

Self-supervised pre-training, based on the pretext task of instance discrimination, has fueled the recent advance in label-efficient object detection. However, existing studies focus on pre-training only a feature extractor network to learn…

Computer Vision and Pattern Recognition · Computer Science 2024-02-16 Nanqing Dong , Linus Ericsson , Yongxin Yang , Ales Leonardis , Steven McDonagh

Generally, the performance of a generic detector decreases significantly when it is tested on a specific scene due to the large variation between the source training dataset and the samples from the target scene. To solve this problem, we…

Computer Vision and Pattern Recognition · Computer Science 2017-07-14 Ala Mhalla , Thierry Chateau , Houda Maamatou , Sami Gazzah , Najoua Essoukri Ben Amara

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…

Computer Vision and Pattern Recognition · Computer Science 2020-11-23 Wu Kehe , Chen Zuge , Zhang Xiaoliang , Li Wei

Remote sensing image segmentation faces persistent challenges in distinguishing morphologically similar categories and adapting to diverse scene variations. While existing methods rely on implicit representation learning paradigms, they…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Xuechao Zou , Yue Li , Shun Zhang , Kai Li , Shiying Wang , Pin Tao , Junliang Xing , Congyan Lang

Complicated underwater environments bring new challenges to object detection, such as unbalanced light conditions, low contrast, occlusion, and mimicry of aquatic organisms. Under these circumstances, the objects captured by the underwater…

Computer Vision and Pattern Recognition · Computer Science 2022-10-06 Pinhao Song , Pengteng Li , Linhui Dai , Tao Wang , Zhan Chen

Current state-of-the-art two-stage models on instance segmentation task suffer from several types of imbalances. In this paper, we address the Intersection over the Union (IoU) distribution imbalance of positive input Regions of Interest…

Computer Vision and Pattern Recognition · Computer Science 2024-04-26 Leonardo Rossi , Akbar Karimi , Andrea Prati