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For specialized and dense downstream tasks such as object detection, labeling data requires expertise and can be very expensive, making few-shot and semi-supervised models much more attractive alternatives. While in the few-shot setup we…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Quentin Bouniot , Angélique Loesch , Romaric Audigier , Amaury Habrard

Current state-of-the-art methods for object detection rely on annotated bounding boxes of large data sets for training. However, obtaining such annotations is expensive and can require up to hundreds of hours of manual labor. This poses a…

Computer Vision and Pattern Recognition · Computer Science 2025-08-04 Hannah Kniesel , Leon Sick , Tristan Payer , Tim Bergner , Kavitha Shaga Devan , Clarissa Read , Paul Walther , Timo Ropinski

Due to the lack of expertise for medical image annotation, the investigation of label-efficient methodology for medical image segmentation becomes a heated topic. Recent progresses focus on the efficient utilization of weak annotations…

Image and Video Processing · Electrical Eng. & Systems 2022-03-14 Junwen Pan , Qi Bi , Yanzhan Yang , Pengfei Zhu , Cheng Bian

In this work a novel approach for weakly supervised object detection that incorporates pointwise mutual information is presented. A fully convolutional neural network architecture is applied in which the network learns one filter per object…

Computer Vision and Pattern Recognition · Computer Science 2018-01-29 Rene Grzeszick , Sebastian Sudholt , Gernot A. Fink

Deep learning models for object detection in autonomous driving have recently achieved impressive performance gains and are already being deployed in vehicles worldwide. However, current models require increasingly large datasets for…

Computer Vision and Pattern Recognition · Computer Science 2025-05-02 Esteban Rivera , Loic Stratil , Markus Lienkamp

Training with sparse annotations is known to reduce the performance of object detectors. Previous methods have focused on proxies for missing ground truth annotations in the form of pseudo-labels for unlabeled boxes. We observe that…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Saksham Suri , Sai Saketh Rambhatla , Rama Chellappa , Abhinav Shrivastava

Existing open-vocabulary object detectors typically enlarge their vocabulary sizes by leveraging different forms of weak supervision. This helps generalize to novel objects at inference. Two popular forms of weak-supervision used in…

Computer Vision and Pattern Recognition · Computer Science 2022-11-30 Hanoona Rasheed , Muhammad Maaz , Muhammad Uzair Khattak , Salman Khan , Fahad Shahbaz Khan

Weakly supervised multiple instance learning (MIL) is a challenging task given that only bag-level labels are provided, while each bag typically contains multiple instances. This topic has been extensively studied in histopathological image…

Computer Vision and Pattern Recognition · Computer Science 2025-08-01 Bodong Zhang , Hamid Manoochehri , Xiwen Li , Beatrice S. Knudsen , Tolga Tasdizen

Multi-label image classification is a fundamental but challenging task towards general visual understanding. Existing methods found the region-level cues (e.g., features from RoIs) can facilitate multi-label classification. Nevertheless,…

Computer Vision and Pattern Recognition · Computer Science 2019-02-22 Yongcheng Liu , Lu Sheng , Jing Shao , Junjie Yan , Shiming Xiang , Chunhong Pan

Reliance on vast annotations to achieve leading performance severely restricts the practicality of large-scale point cloud semantic segmentation. For the purpose of reducing data annotation costs, effective labeling schemes are developed…

Computer Vision and Pattern Recognition · Computer Science 2022-11-24 Puzuo Wang , Wei Yao , Jie Shao

We propose an embarrassingly simple point annotation scheme to collect weak supervision for instance segmentation. In addition to bounding boxes, we collect binary labels for a set of points uniformly sampled inside each bounding box. We…

Computer Vision and Pattern Recognition · Computer Science 2022-06-17 Bowen Cheng , Omkar Parkhi , Alexander Kirillov

Deep-learning-based methods have been favored in astrophysics owing to their adaptability and remarkable performance and have been applied to the task of the classification of real and bogus transients. Different from most existing…

Instrumentation and Methods for Astrophysics · Physics 2025-01-15 Yating Liu , Lulu Fan , Lei Hu , Junqiang Lu , Yan Lu , Zelin Xu , Jiazheng Zhu , Haochen Wang , Xu Kong

Effective waste sorting is critical for sustainable recycling, yet AI research in this domain continues to lag behind commercial systems due to limited datasets and reliance on legacy object detectors. In this work, we advance AI-driven…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Hassan Abid , Khan Muhammad , Muhammad Haris Khan

The performance of deep neural networks improves with more annotated data. The problem is that the budget for annotation is limited. One solution to this is active learning, where a model asks human to annotate data that it perceived as…

Computer Vision and Pattern Recognition · Computer Science 2019-05-10 Donggeun Yoo , In So Kweon

In recent years, powerful data-driven deep-learning techniques have been developed and applied for automated catch registration. However, these methods are dependent on the labelled data, which is time-consuming, labour-intensive, expensive…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Maria Sokolova , Pieter M. Blok , Angelo Mencarelli , Arjan Vroegop , Aloysius van Helmond , Gert Kootstra

In this paper, we propose a binarized neural network learning method called BiDet for efficient object detection. Conventional network binarization methods directly quantize the weights and activations in one-stage or two-stage detectors…

Computer Vision and Pattern Recognition · Computer Science 2020-03-10 Ziwei Wang , Ziyi Wu , Jiwen Lu , Jie Zhou

Bayesian optimization is a broadly applied methodology to optimize the expensive black-box function. Despite its success, it still faces the challenge from the high-dimensional search space. To alleviate this problem, we propose a novel…

Machine Learning · Computer Science 2020-10-20 Jingfan Chen , Guanghui Zhu , Chunfeng Yuan , Yihua Huang

Semi-supervised learning (SSL) has a potential to improve the predictive performance of machine learning models using unlabeled data. Although there has been remarkable recent progress, the scope of demonstration in SSL has mainly been on…

Computer Vision and Pattern Recognition · Computer Science 2020-12-04 Kihyuk Sohn , Zizhao Zhang , Chun-Liang Li , Han Zhang , Chen-Yu Lee , Tomas Pfister

Active learning is an important technology for automated machine learning systems. In contrast to Neural Architecture Search (NAS) which aims at automating neural network architecture design, active learning aims at automating training data…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Zhanpeng Feng , Shiliang Zhang , Rinyoichi Takezoe , Wenze Hu , Manmohan Chandraker , Li-Jia Li , Vijay K. Narayanan , Xiaoyu Wang

The requirement of expensive annotations is a major burden for training a well-performed instance segmentation model. In this paper, we present an economic active learning setting, named active pointly-supervised instance segmentation…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Chufeng Tang , Lingxi Xie , Gang Zhang , Xiaopeng Zhang , Qi Tian , Xiaolin Hu