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Multi-scale features are essential for dense prediction tasks, such as object detection, instance segmentation, and semantic segmentation. The prevailing methods usually utilize a classification backbone to extract multi-scale features and…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Gang Zhang , Ziyi Li , Chufeng Tang , Jianmin Li , Xiaolin Hu

Object detection in aerial images is a challenging task due to the lack of visible features and variant orientation of objects. Significant progress has been made recently for predicting targets from aerial images with horizontal bounding…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Youtian Lin , Pengming Feng , Jian Guan , Wenwu Wang , Jonathon Chambers

Snow is one of the toughest adverse weather conditions for object detection (OD). Currently, not only there is a lack of snowy OD datasets to train cutting-edge detectors, but also these detectors have difficulties learning latent…

Computer Vision and Pattern Recognition · Computer Science 2022-06-06 Qiqi Ding , Peng Li , Xuefeng Yan , Ding Shi , Luming Liang , Weiming Wang , Haoran Xie , Jonathan Li , Mingqiang Wei

Bounding box regression is the crucial step in object detection. In existing methods, while $\ell_n$-norm loss is widely adopted for bounding box regression, it is not tailored to the evaluation metric, i.e., Intersection over Union (IoU).…

Computer Vision and Pattern Recognition · Computer Science 2019-11-20 Zhaohui Zheng , Ping Wang , Wei Liu , Jinze Li , Rongguang Ye , Dongwei Ren

Label assignment plays a significant role in modern object detection models. Detection models may yield totally different performances with different label assignment strategies. For anchor-based detection models, the IoU (Intersection over…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Tianxiao Zhang , Bo Luo , Ajay Sharda , Guanghui Wang

Convolutional neural network (CNN) is a class of artificial neural networks widely used in computer vision tasks. Most CNNs achieve excellent performance by stacking certain types of basic units. In addition to increasing the depth and…

Computer Vision and Pattern Recognition · Computer Science 2021-02-09 Junyi An , Fengshan Liu , Jian Zhao , Furao Shen

We introduce the Overfitting-Underfitting Indicator (OUI), a novel tool for monitoring the training dynamics of Deep Neural Networks (DNNs) and identifying optimal regularization hyperparameters. Specifically, we validate that OUI can…

Machine Learning · Computer Science 2025-04-25 Alberto Fernández-Hernández , Jose I. Mestre , Manuel F. Dolz , Jose Duato , Enrique S. Quintana-Ortí

In Few-Shot Object Detection (FSOD), detecting small objects is extremely difficult. The limited supervision cripples the localization capabilities of the models and a few pixels shift can dramatically reduce the Intersection over Union…

Computer Vision and Pattern Recognition · Computer Science 2023-07-20 Pierre Le Jeune , Anissa Mokraoui

In the recent past, algorithms based on Convolutional Neural Networks (CNNs) have achieved significant milestones in object recognition. With large examples of each object class, standard datasets train well for inter-class variability.…

Computer Vision and Pattern Recognition · Computer Science 2018-06-11 Shrinivasan Sankar , Adrien Bartoli

Grid R-CNN is a well-performed objection detection framework. It transforms the traditional box offset regression problem into a grid point estimation problem. With the guidance of the grid points, it can obtain high-quality localization…

Computer Vision and Pattern Recognition · Computer Science 2019-06-14 Xin Lu , Buyu Li , Yuxin Yue , Quanquan Li , Junjie Yan

Improving object detectors against occlusion, blur and noise is a critical step to deploy detectors in real applications. Since it is not possible to exhaust all image defects through data collection, many researchers seek to generate hard…

Computer Vision and Pattern Recognition · Computer Science 2019-04-01 Zeyi Huang , Wei Ke , Dong Huang

Task inharmony problem commonly occurs in modern object detectors, leading to inconsistent qualities between classification and regression tasks. The predicted boxes with high classification scores but poor localization positions or low…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Long Huang , Zhiwei Dong , Song-Lu Chen , Ruiyao Zhang , Shutong Ti , Feng Chen , Xu-Cheng Yin

The majority of current object detectors lack context: class predictions are made independently from other detections. We propose to incorporate context in object detection by post-processing the output of an arbitrary detector to rescore…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Lourenço V. Pato , Renato Negrinho , Pedro M. Q. Aguiar

Effective feature fusion of multispectral images plays a crucial role in multi-spectral object detection. Previous studies have demonstrated the effectiveness of feature fusion using convolutional neural networks, but these methods are…

Computer Vision and Pattern Recognition · Computer Science 2023-08-16 Jifeng Shen , Yifei Chen , Yue Liu , Xin Zuo , Heng Fan , Wankou Yang

Underwater object detection has higher requirements of running speed and deployment efficiency for the detector due to its specific environmental challenges. NMS of two- or one-stage object detectors and transformer architecture of…

Computer Vision and Pattern Recognition · Computer Science 2025-10-30 Zhuoyan Liu , Bo Wang , Bing Wang , Ye Li

Jointly integrating aspect ratio and context has been extensively studied and shown performance improvement in traditional object detection systems such as the DPMs. It, however, has been largely ignored in deep neural network based…

Computer Vision and Pattern Recognition · Computer Science 2017-03-23 Bo Li , Tianfu Wu , Shuai Shao , Lun Zhang , Rufeng Chu

Recent one-stage object detectors follow a per-pixel prediction approach that predicts both the object category scores and boundary positions from every single grid location. However, the most suitable positions for inferring different…

Computer Vision and Pattern Recognition · Computer Science 2022-12-02 Li Yang , Yan Xu , Shaoru Wang , Chunfeng Yuan , Ziqi Zhang , Bing Li , Weiming Hu

Camouflaged objects are seamlessly blended in with their surroundings, which brings a challenging detection task in computer vision. Optimizing a convolutional neural network (CNN) for camouflaged object detection (COD) tends to activate…

Computer Vision and Pattern Recognition · Computer Science 2022-12-19 Wei Sun , Chengao Liu , Linyan Zhang , Yu Li , Pengxu Wei , Chang Liu , Jialing Zou , Jianbin Jiao , Qixiang Ye

Object detectors tend to perform poorly in new or open domains, and require exhaustive yet costly annotations from fully labeled datasets. We aim at benefiting from several datasets with different categories but without additional…

Computer Vision and Pattern Recognition · Computer Science 2019-03-26 Alexandre Rame , Emilien Garreau , Hedi Ben-Younes , Charles Ollion

Existing state-of-the-art salient object detection networks rely on aggregating multi-level features of pre-trained convolutional neural networks (CNNs). Compared to high-level features, low-level features contribute less to performance but…

Computer Vision and Pattern Recognition · Computer Science 2019-04-19 Zhe Wu , Li Su , Qingming Huang