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Continual learning seeks to maintain stable adaptation under non-stationary environments, yet this problem becomes particularly challenging in object detection, where most existing methods implicitly assume relatively balanced visual…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Rangya Zhang , Jiaping Xiao , Lu Bai , Yuhang Zhang , Mir Feroskhan

Continued improvements in deep learning architectures have steadily advanced the overall performance of 3D object detectors to levels on par with humans for certain tasks and datasets, where the overall performance is mostly driven by…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Chiyu Max Jiang , Mahyar Najibi , Charles R. Qi , Yin Zhou , Dragomir Anguelov

Despite the striking performance achieved by modern detectors when training and test data are sampled from the same or similar distribution, the generalization ability of detectors under unknown distribution shifts remains hardly studied.…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Xingxuan Zhang , Zekai Xu , Renzhe Xu , Jiashuo Liu , Peng Cui , Weitao Wan , Chong Sun , Chen Li

As deep neural networks(DNN) become increasingly prevalent, particularly in high-stakes areas such as autonomous driving and healthcare, the ability to detect incorrect predictions of models and intervene accordingly becomes crucial for…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Ge Yan , Tsui-Wei Weng

With the ever-growing variety of object detection approaches, this study explores a series of experiments that combine reinforcement learning (RL)-based visual attention methods with saliency ranking techniques to investigate transparent…

Computer Vision and Pattern Recognition · Computer Science 2024-11-06 Matthias Bartolo , Dylan Seychell , Josef Bajada

While traditional Deep Learning (DL) optimization methods treat all training samples equally, Distributionally Robust Optimization (DRO) adaptively assigns importance weights to different samples. However, a significant gap exists between…

Object detectors are typically learned on fully-annotated training data with fixed predefined categories. However, categories are often required to be increased progressively. Usually, only the original training set annotated with old…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Bowen Zhao , Chen Chen , Xi Xiao , Shutao Xia

Regularization schemes for regression have been widely studied in learning theory and inverse problems. In this paper, we study distribution regression (DR) which involves two stages of sampling, and aims at regressing from probability…

Machine Learning · Computer Science 2021-10-27 Zhan Yu , Daniel W. C. Ho , Ding-Xuan Zhou

Diabetic Retinopathy (DR) constitutes 5% of global blindness cases. While numerous deep learning approaches have sought to enhance traditional DR grading methods, they often falter when confronted with new out-of-distribution data thereby…

Image and Video Processing · Electrical Eng. & Systems 2024-11-06 Sharon Chokuwa , Muhammad Haris Khan

Object detection has gained great progress driven by the development of deep learning. Compared with a widely studied task -- classification, generally speaking, object detection even need one or two orders of magnitude more FLOPs (floating…

Computer Vision and Pattern Recognition · Computer Science 2019-05-27 Yixing Li , Fengbo Ren

Label assignment (LA), which aims to assign each training sample a positive (pos) and a negative (neg) loss weight, plays an important role in object detection. Existing LA methods mostly focus on the design of pos weighting function, while…

Computer Vision and Pattern Recognition · Computer Science 2022-03-21 Shuai Li , Chenhang He , Ruihuang Li , Lei Zhang

We propose a deep learning-based solution for the problem of feature learning in one-class classification. The proposed method operates on top of a Convolutional Neural Network (CNN) of choice and produces descriptive features while…

Computer Vision and Pattern Recognition · Computer Science 2019-10-02 Pramuditha Perera , Vishal M. Patel

This paper focuses on a novel and challenging detection scenario: A majority of true objects/instances is unlabeled in the datasets, so these missing-labeled areas will be regarded as the background during training. Previous art on this…

Computer Vision and Pattern Recognition · Computer Science 2020-08-05 Han Zhang , Fangyi Chen , Zhiqiang Shen , Qiqi Hao , Chenchen Zhu , Marios Savvides

The vast majority of Dimensionality Reduction (DR) techniques rely on second-order statistics to define their optimization objective. Even though this provides adequate results in most cases, it comes with several shortcomings. The methods…

Computer Vision and Pattern Recognition · Computer Science 2017-08-21 Nikolaos Passalis , Anastasios Tefas

We introduce a novel unsupervised domain adaptation approach for object detection. We aim to alleviate the imperfect translation problem of pixel-level adaptations, and the source-biased discriminativity problem of feature-level adaptations…

Computer Vision and Pattern Recognition · Computer Science 2019-05-15 Taekyung Kim , Minki Jeong , Seunghyeon Kim , Seokeon Choi , Changick Kim

Unlike natural images with occlusion-based overlap, X-ray images exhibit depth-induced superimposition and semi-transparent appearances, where objects at different depths overlap and their features blend together. These characteristics…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Mingyuan Li , Tong Jia , Hui Lu , Hao Wang , Bowen Ma , Shiyi Guo , Shuyang Lin , Dongyue Chen , Haoran Wang , Baosheng Yu

Class-imbalance is one of the major challenges in real world datasets, where a few classes (called majority classes) constitute much more data samples than the rest (called minority classes). Learning deep neural networks using such…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Saptarshi Sinha , Hiroki Ohashi , Katsuyuki Nakamura

Stochastic gradient descent (SGD) provides a simple and efficient way to solve a broad range of machine learning problems. Here, we focus on distribution regression (DR), involving two stages of sampling: Firstly, we regress from…

Machine Learning · Statistics 2021-03-08 Nicole Mücke

Practical object detection application can lose its effectiveness on image inputs with natural distribution shifts. This problem leads the research community to pay more attention on the robustness of detectors under Out-Of-Distribution…

Computer Vision and Pattern Recognition · Computer Science 2023-08-03 Xiaofeng Mao , Yuefeng Chen , Yao Zhu , Da Chen , Hang Su , Rong Zhang , Hui Xue

Pyramidal networks are standard methods for multi-scale object detection. Current researches on feature pyramid networks usually adopt layer connections to collect features from certain levels of the feature hierarchy, and do not consider…

Computer Vision and Pattern Recognition · Computer Science 2022-06-17 Junliang Chen , Weizeng Lu , Linlin Shen