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During training, supervised object detection tries to correctly match the predicted bounding boxes and associated classification scores to the ground truth. This is essential to determine which predictions are to be pushed towards which…

计算机视觉与模式识别 · 计算机科学 2023-07-06 Henri De Plaen , Pierre-François De Plaen , Johan A. K. Suykens , Marc Proesmans , Tinne Tuytelaars , Luc Van Gool

Anomaly detection is crucial in industrial applications for identifying rare and unseen patterns to ensure system reliability. Traditional models, trained on a single class of normal data, struggle with real-world distributions where normal…

机器学习 · 统计学 2026-01-07 Jungi Lee , Jungkwon Kim , Chi Zhang , Sangmin Kim , Kwangsun Yoo , Seok-Joo Byun

Motivated by the need for estimating the 3D pose of arbitrary objects, we consider the challenging problem of class-agnostic object viewpoint estimation from images only, without CAD model knowledge. The idea is to leverage features learned…

计算机视觉与模式识别 · 计算机科学 2021-10-28 Yang Xiao , Yuming Du , Renaud Marlet

This work addresses image restoration tasks through the lens of inverse problems using unpaired datasets. In contrast to traditional approaches -- which typically assume full knowledge of the forward model or access to paired degraded and…

计算机视觉与模式识别 · 计算机科学 2025-06-18 Giacomo Meanti , Thomas Ryckeboer , Michael Arbel , Julien Mairal

Recent approaches have shown that training deep neural networks directly on large-scale image-text pair collections enables zero-shot transfer on various recognition tasks. One central issue is how this can be generalized to object…

计算机视觉与模式识别 · 计算机科学 2022-08-30 Johnathan Xie , Shuai Zheng

Object detectors are conventionally trained by a weighted sum of classification and localization losses. Recent studies (e.g., predicting IoU with an auxiliary head, Generalized Focal Loss, Rank & Sort Loss) have shown that forcing these…

计算机视觉与模式识别 · 计算机科学 2023-01-04 Fehmi Kahraman , Kemal Oksuz , Sinan Kalkan , Emre Akbas

The unique characteristics of text data make classification tasks a complex problem. Advances in unsupervised and semi-supervised learning and autoencoder architectures addressed several challenges. However, they still struggle with…

计算与语言 · 计算机科学 2024-10-30 Grigorii Khvatskii , Nuno Moniz , Khoa Doan , Nitesh V Chawla

Contrastive learning is a representation learning method performed by contrasting a sample to other similar samples so that they are brought closely together, forming clusters in the feature space. The learning process is typically…

机器学习 · 计算机科学 2022-09-28 Valentino Vito , Lim Yohanes Stefanus

Object occlusion boundary detection is a fundamental and crucial research problem in computer vision. This is challenging to solve as encountering the extreme boundary/non-boundary class imbalance during training an object occlusion…

计算机视觉与模式识别 · 计算机科学 2018-09-14 Guoxia Wang , Xiaohui Liang , Frederick W. B. Li

With the recent development of Semi-Supervised Object Detection (SS-OD) techniques, object detectors can be improved by using a limited amount of labeled data and abundant unlabeled data. However, there are still two challenges that are not…

计算机视觉与模式识别 · 计算机科学 2022-06-22 Yen-Cheng Liu , Chih-Yao Ma , Zsolt Kira

In this paper, we present a comprehensive review of the imbalance problems in object detection. To analyze the problems in a systematic manner, we introduce a problem-based taxonomy. Following this taxonomy, we discuss each problem in depth…

计算机视觉与模式识别 · 计算机科学 2020-03-12 Kemal Oksuz , Baris Can Cam , Sinan Kalkan , Emre Akbas

Few-shot object detection (FSOD) aims to detect objects with limited samples for novel classes, while relying on abundant data for base classes. Existing FSOD approaches, predominantly built on the Faster R-CNN detector, entangle objectness…

计算机视觉与模式识别 · 计算机科学 2025-06-30 Taijin Zhao , Heqian Qiu , Yu Dai , Lanxiao Wang , Fanman Meng , Qingbo Wu , Hongliang Li

Single object tracking in point clouds has been attracting more and more attention owing to the presence of LiDAR sensors in 3D vision. However, the existing methods based on deep neural networks focus mainly on training different models…

计算机视觉与模式识别 · 计算机科学 2024-01-25 Shengjing Tian , Jun Liu , Xiuping Liu

The core problem in zero-shot open vocabulary detection is how to align visual and text features, so that the detector performs well on unseen classes. Previous approaches train the feature pyramid and detection head from scratch, which…

计算机视觉与模式识别 · 计算机科学 2023-03-24 Relja Arandjelović , Alex Andonian , Arthur Mensch , Olivier J. Hénaff , Jean-Baptiste Alayrac , Andrew Zisserman

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…

计算机视觉与模式识别 · 计算机科学 2022-08-09 Bowen Zhao , Chen Chen , Xi Xiao , Shutao Xia

Since many safety-critical systems, such as surgical robots and autonomous driving cars operate in unstable environments with sensor noise and incomplete data, it is desirable for object detectors to take the localization uncertainty into…

计算机视觉与模式识别 · 计算机科学 2022-07-07 Youngwan Lee , Joong-won Hwang , Hyung-Il Kim , Kimin Yun , Yongjin Kwon , Yuseok Bae , Sung Ju Hwang

Active Learning (AL) has the potential to solve a major problem of digital pathology: the efficient acquisition of labeled data for machine learning algorithms. However, existing AL methods often struggle in realistic settings with…

计算机视觉与模式识别 · 计算机科学 2024-04-09 Arne Schmidt , Pablo Morales-Álvarez , Lee A. D. Cooper , Lee A. Newberg , Andinet Enquobahrie , Aggelos K. Katsaggelos , Rafael Molina

Data imbalance exists ubiquitously in real-world visual regressions, e.g., age estimation and pose estimation, hurting the model's generalizability and fairness. Thus, imbalanced regression gains increasing research attention recently.…

计算机视觉与模式识别 · 计算机科学 2022-03-31 Jiawei Ren , Mingyuan Zhang , Cunjun Yu , Ziwei Liu

Class-agnostic image segmentation is a crucial component in automating image editing workflows, especially in contexts where object selection traditionally involves interactive tools. Existing methods in the literature often adhere to…

计算机视觉与模式识别 · 计算机科学 2024-09-23 Sebastian Dille , Ari Blondal , Sylvain Paris , Yağız Aksoy

With rapid technological growth, automatic pronunciation assessment has transitioned toward systems that evaluate pronunciation in various aspects, such as fluency and stress. However, despite the highly imbalanced score labels within each…

计算与语言 · 计算机科学 2023-08-30 Heejin Do , Yunsu Kim , Gary Geunbae Lee