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Objects in aerial images are typically embedded in complex backgrounds and exhibit arbitrary orientations. When employing oriented bounding boxes (OBB) to represent arbitrary oriented objects, the periodicity of angles could lead to…

Computer Vision and Pattern Recognition · Computer Science 2024-07-04 Mingkui Feng , Hancheng Yu , Xiaoyu Dang , Ming Zhou

The labeling cost of large number of bounding boxes is one of the main challenges for training modern object detectors. To reduce the dependence on expensive bounding box annotations, we propose a new semi-supervised object detection…

Computer Vision and Pattern Recognition · Computer Science 2018-12-04 JIyang Gao , Jiang Wang , Shengyang Dai , Li-Jia Li , Ram Nevatia

The continual learning problem has been widely studied in image classification, while rare work has been explored in object detection. Some recent works apply knowledge distillation to constrain the model to retain old knowledge, but this…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Kai Zheng , Cen Chen

Dense pose estimation is a dense 3D prediction task for instance-level human analysis, aiming to map human pixels from an RGB image to a 3D surface of the human body. Due to a large amount of surface point regression, the training process…

Computer Vision and Pattern Recognition · Computer Science 2022-11-07 Wenhe Jia , Yilin Zhou , Xuhan Zhu , Mengjie Hu , Chun Liu , Qing Song

This study proposes a semi-supervised co-training framework for object detection in densely packed retail environments, where limited labeled data and complex conditions pose major challenges. The framework combines Faster R-CNN (utilizing…

Computer Vision and Pattern Recognition · Computer Science 2025-09-15 Hossein Yazdanjouei , Arash Mansouri , Mohammad Shokouhifar

The ambiguous appearance, tiny scale, and fine-grained classes of objects in remote sensing imagery inevitably lead to the noisy annotations in category labels of detection dataset. However, the effects and treatments of the label noises…

Computer Vision and Pattern Recognition · Computer Science 2024-05-16 Guozhang Liu , Ting Liu , Mengke Yuan , Tao Pang , Guangxing Yang , Hao Fu , Tao Wang , Tongkui Liao

Object detection performance, as measured on the canonical PASCAL VOC dataset, has plateaued in the last few years. The best-performing methods are complex ensemble systems that typically combine multiple low-level image features with…

Computer Vision and Pattern Recognition · Computer Science 2014-10-23 Ross Girshick , Jeff Donahue , Trevor Darrell , Jitendra Malik

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

We present an approach for recognizing all objects in a scene and estimating their full pose from an accurate 3D instance-aware semantic reconstruction using an RGB-D camera. Our framework couples convolutional neural networks (CNNs) and a…

Robotics · Computer Science 2019-10-01 Dinh-Cuong Hoang , Todor Stoyanov , Achim J. Lilienthal

The complexity-precision trade-off of an object detector is a critical problem for resource constrained vision tasks. Previous works have emphasized detectors implemented with efficient backbones. The impact on this trade-off of proposal…

Computer Vision and Pattern Recognition · Computer Science 2022-07-11 Yunsheng Li , Yinpeng Chen , Xiyang Dai , Dongdong Chen , Mengchen Liu , Pei Yu , Jing Yin , Lu Yuan , Zicheng Liu , Nuno Vasconcelos

Sparse coding strategies have been lauded for their parsimonious representations of data that leverage low dimensional structure. However, inference of these codes typically relies on an optimization procedure with poor computational…

Machine Learning · Computer Science 2022-09-02 Kion Fallah , Christopher J. Rozell

This paper introduces a method based on a deep neural network (DNN) that is perfectly capable of processing radar data from extremely thinned radar apertures. The proposed DNN processing can provide both aliasing-free radar imaging and…

Signal Processing · Electrical Eng. & Systems 2023-07-12 Christian Schuessler , Marcel Hoffmann , Martin Vossiek

In this paper, we address the problem of weakly supervised object localization (WSL), which trains a detection network on the dataset with only image-level annotations. The proposed approach is built on the observation that the proposal set…

Computer Vision and Pattern Recognition · Computer Science 2019-10-22 Wenju Xu , Yuanwei Wu , Wenchi Ma , Guanghui Wang

Object recognition from images means to automatically find object(s) of interest and to return their category and location information. Benefiting from research on deep learning, like convolutional neural networks~(CNNs) and generative…

Computer Vision and Pattern Recognition · Computer Science 2024-01-09 Zhize Wu , Xiaofeng Wang , Tong Xu , Xuebin Yang , Le Zou , Lixiang Xu , Thomas Weise

Recent advances in object detection have benefited significantly from rapid developments in deep neural networks. However, neural networks suffer from the well-known issue of catastrophic forgetting, which makes continual or lifelong…

Computer Vision and Pattern Recognition · Computer Science 2020-09-03 Wang Zhou , Shiyu Chang , Norma Sosa , Hendrik Hamann , David Cox

High quality object proposals are crucial in visual tracking algorithms that utilize region proposal network (RPN). Refinement of these proposals, typically by box regression and classification in parallel, has been popularly adopted to…

Computer Vision and Pattern Recognition · Computer Science 2020-11-26 Heng Fan , Haibin Ling

In this paper, we present a dense hybrid proposal modulation (DHPM) method for lane detection. Most existing methods perform sparse supervision on a subset of high-scoring proposals, while other proposals fail to obtain effective shape and…

Computer Vision and Pattern Recognition · Computer Science 2023-05-01 Yuejian Wu , Linqing Zhao , Jiwen Lu , Haibin Yan

Object detection has achieved remarkable progress in the past decade. However, the detection of oriented and densely packed objects remains challenging because of following inherent reasons: (1) receptive fields of neurons are all…

Computer Vision and Pattern Recognition · Computer Science 2020-06-12 Xingjia Pan , Yuqiang Ren , Kekai Sheng , Weiming Dong , Haolei Yuan , Xiaowei Guo , Chongyang Ma , Changsheng Xu

Deep region-based object detector consists of a region proposal step and a deep object recognition step. In this paper, we make significant improvements on both of the two steps. For region proposal we propose a novel lightweight cascade…

Computer Vision and Pattern Recognition · Computer Science 2017-10-31 Qiaoyong Zhong , Chao Li , Yingying Zhang , Di Xie , Shicai Yang , Shiliang Pu

We present a novel approach to the formulation and the resolution of sparse Linear Discriminant Analysis (LDA). Our proposal, is based on penalized Optimal Scoring. It has an exact equivalence with penalized LDA, contrary to the multi-class…

Machine Learning · Computer Science 2012-07-03 Luis Francisco Sanchez Merchante , Yves Grandvalet , Gerrad Govaert