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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

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

In object detection, reducing computational cost is as important as improving accuracy for most practical usages. This paper proposes a novel network structure, which is an order of magnitude lighter than other state-of-the-art networks…

Computer Vision and Pattern Recognition · Computer Science 2016-12-13 Sanghoon Hong , Byungseok Roh , Kye-Hyeon Kim , Yeongjae Cheon , Minje Park

Lane detection plays a critical role in the field of autonomous driving. Prevailing methods generally adopt basic concepts (anchors, key points, etc.) from object detection and segmentation tasks, while these approaches require manual…

Computer Vision and Pattern Recognition · Computer Science 2024-03-11 Jiayan Cao , Xueyu Zhu , Cheng Qian

Ship detection in aerial images remains an active yet challenging task due to arbitrary object orientation and complex background from a bird's-eye perspective. Most of the existing methods rely on angular prediction or predefined anchor…

Computer Vision and Pattern Recognition · Computer Science 2021-11-23 Feng Jie , Yuping Liang , Junpeng Zhang , Xiangrong Zhang , Quanhe Yao , Licheng Jiao

We consider a multihop distributed uplink reception system in which $K$ users transmit independent messages to one data center of $N_{\rm r} \geq K$ receive antennas, with the aid of multihop intermediate relays. In particular, each antenna…

Information Theory · Computer Science 2018-12-11 Seonho Kim , Song-Nam Hong

In the same vein of discriminative one-shot learning, Siamese networks allow recognizing an object from a single exemplar with the same class label. However, they do not take advantage of the underlying structure of the data and the…

Computer Vision and Pattern Recognition · Computer Science 2019-07-16 Xingping Dong , Jianbing Shen , Dongming Wu , Kan Guo , Xiaogang Jin , Fatih Porikli

Machine unlearning aims to erase the impact of specific training samples upon deleted requests from a trained model. Re-training the model on the retained data after deletion is an effective but not efficient way due to the huge number of…

Machine Learning · Computer Science 2022-10-31 Sihao Yu , Fei Sun , Jiafeng Guo , Ruqing Zhang , Xueqi Cheng

This work proposes a process for efficiently training a point-wise object detector that enables localizing objects and computing their 6D poses in cluttered and occluded scenes. Accurate pose estimation is typically a requirement for robust…

Computer Vision and Pattern Recognition · Computer Science 2019-02-22 Jean-Philippe Mercier , Chaitanya Mitash , Philippe Giguère , Abdeslam Boularias

A recent approach for object detection and human pose estimation is to regress bounding boxes or human keypoints from a central point on the object or person. While this center-point regression is simple and efficient, we argue that the…

Computer Vision and Pattern Recognition · Computer Science 2020-08-04 Fangyun Wei , Xiao Sun , Hongyang Li , Jingdong Wang , Stephen Lin

Few-shot detection and classification have advanced significantly in recent years. Yet, detection approaches require strong annotation (bounding boxes) both for pre-training and for adaptation to novel classes, and classification approaches…

Computer Vision and Pattern Recognition · Computer Science 2020-09-18 Leonid Karlinsky , Joseph Shtok , Amit Alfassy , Moshe Lichtenstein , Sivan Harary , Eli Schwartz , Sivan Doveh , Prasanna Sattigeri , Rogerio Feris , Alexander Bronstein , Raja Giryes

One-to-one (o2o) label assignment plays a key role for transformer based end-to-end detection, and it has been recently introduced in fully convolutional detectors for end-to-end dense detection. However, o2o can degrade the feature…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Shuai Li , Minghan Li , Ruihuang Li , Chenhang He , Lei Zhang

In training object detector based on convolutional neural networks, selection of effective positive examples for training is an important factor. However, when training an anchor-based detectors with sparse annotations on an image, effort…

Computer Vision and Pattern Recognition · Computer Science 2020-06-23 Jihun Yoon , Seungbum Hong , Sanha Jeong , Min-Kook Choi

Dense Object Nets (DONs) by Florence, Manuelli and Tedrake (2018) introduced dense object descriptors as a novel visual object representation for the robotics community. It is suitable for many applications including object grasping, policy…

In this paper, we present confidence inference approachin an unsupervised way in stereo matching. Deep Neu-ral Networks (DNNs) have recently been achieving state-of-the-art performance. However, it is often hard to tellwhether the trained…

Computer Vision and Pattern Recognition · Computer Science 2018-09-27 Ruichao Xiao , Wenxiu Sun , Chengxi Yang

6-DoF object pose estimation from a monocular image is challenging, and a post-refinement procedure is generally needed for high-precision estimation. In this paper, we propose a framework based on a recurrent neural network (RNN) for…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Yan Xu , Kwan-Yee Lin , Guofeng Zhang , Xiaogang Wang , Hongsheng Li

This paper proposes a novel approach for detecting objects using mobile robots in the context of the RoboCup Standard Platform League, with a primary focus on detecting the ball. The challenge lies in detecting a dynamic object in varying…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Arne Moos

Previous state-of-the-art real-time object detectors have been reported on GPUs which are extremely expensive for processing massive data and in resource-restricted scenarios. Therefore, high efficiency object detectors on CPU-only devices…

Computer Vision and Pattern Recognition · Computer Science 2020-09-10 Chen Chen , Mengyuan Liu , Xiandong Meng , Wanpeng Xiao , Qi Ju

Anchor-based detectors have been continuously developed for object detection. However, the individual anchor box makes it difficult to predict the boundary's offset accurately. Instead of taking each bounding box as a closed individual, we…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Yilong Lv , Min Li , Yujie He , Shaopeng Li , Zhuzhen He , Aitao Yang

Recent works on two-stage cross-domain detection have widely explored the local feature patterns to achieve more accurate adaptation results. These methods heavily rely on the region proposal mechanisms and ROI-based instance-level features…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Chaoqi Chen , Zebiao Zheng , Yue Huang , Xinghao Ding , Yizhou Yu