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Conventional training of a deep CNN based object detector demands a large number of bounding box annotations, which may be unavailable for rare categories. In this work we develop a few-shot object detector that can learn to detect novel…

Computer Vision and Pattern Recognition · Computer Science 2019-10-22 Bingyi Kang , Zhuang Liu , Xin Wang , Fisher Yu , Jiashi Feng , Trevor Darrell

We study the problem of compositional zero-shot learning for object-attribute recognition. Prior works use visual features extracted with a backbone network, pre-trained for object classification and thus do not capture the subtly distinct…

Computer Vision and Pattern Recognition · Computer Science 2022-05-18 Nirat Saini , Khoi Pham , Abhinav Shrivastava

Logical anomalies (LA) refer to data violating underlying logical constraints e.g., the quantity, arrangement, or composition of components within an image. Detecting accurately such anomalies requires models to reason about various…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Soopil Kim , Sion An , Philip Chikontwe , Myeongkyun Kang , Ehsan Adeli , Kilian M. Pohl , Sang Hyun Park

In the last decades, large datasets of fundus photographs have been collected in diabetic retinopathy (DR) screening networks. Through deep learning, these datasets were used to train automatic detectors for DR and a few other frequent…

Computer Vision and Pattern Recognition · Computer Science 2020-02-11 Gwenolé Quellec , Mathieu Lamard , Pierre-Henri Conze , Pascale Massin , Béatrice Cochener

Tabular anomaly detection under the one-class classification setting poses a significant challenge, as it involves accurately conceptualizing "normal" derived exclusively from a single category to discern anomalies from normal data…

Machine Learning · Computer Science 2024-12-18 Jianan Ye , Zhaorui Tan , Yijie Hu , Xi Yang , Guangliang Cheng , Kaizhu Huang

Anomaly detection is a challenging task that frequently arises in practically all areas of industry and science, from fraud detection and data quality monitoring to finding rare cases of diseases and searching for new physics. Most of the…

Machine Learning · Computer Science 2021-11-22 Artem Ryzhikov , Maxim Borisyak , Andrey Ustyuzhanin , Denis Derkach

Few-shot learning (FSL) aims to recognize novel concepts from only a few labeled support samples. Recent studies enhance support features by incorporating additional semantic information or designing complex semantic fusion modules.…

Computer Vision and Pattern Recognition · Computer Science 2025-10-24 Wenhao Li , Qiangchang Wang , Xianjing Meng , Zhibin Wu , Yilong Yin

The goal of unsupervised anomaly segmentation (UAS) is to detect the pixel-level anomalies unseen during training. It is a promising field in the medical imaging community, e.g, we can use the model trained with only healthy data to segment…

Image and Video Processing · Electrical Eng. & Systems 2021-03-17 Chenxin Li , Yunlong Zhang , Jiongcheng Li , Yue Huang , Xinghao Ding

Viewpoint estimation for known categories of objects has been improved significantly thanks to deep networks and large datasets, but generalization to unknown categories is still very challenging. With an aim towards improving performance…

Computer Vision and Pattern Recognition · Computer Science 2019-08-02 Hung-Yu Tseng , Shalini De Mello , Jonathan Tremblay , Sifei Liu , Stan Birchfield , Ming-Hsuan Yang , Jan Kautz

Few-shot learning has made impressive strides in addressing the crucial challenges of recognizing unknown samples from novel classes in target query sets and managing visual shifts between domains. However, existing techniques fall short…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Debabrata Pal , Deeptej More , Sai Bhargav , Dipesh Tamboli , Vaneet Aggarwal , Biplab Banerjee

In this work, we address the task of few-shot part segmentation, which aims to segment the different parts of an unseen object using very few labeled examples. It is found that leveraging the textual space of a powerful pre-trained…

Computer Vision and Pattern Recognition · Computer Science 2023-08-25 Mengya Han , Heliang Zheng , Chaoyue Wang , Yong Luo , Han Hu , Jing Zhang , Yonggang Wen

Weakly-Supervised Video Anomaly Detection aims to identify anomalous events using only video-level labels, balancing annotation efficiency with practical applicability. However, existing methods often oversimplify the anomaly space by…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Junhee Lee , ChaeBeen Bang , MyoungChul Kim , MyeongAh Cho

Temporal action segmentation is typically achieved by discovering the dramatic variances in global visual descriptors. In this paper, we explore the merits of local features by proposing the unsupervised framework of Object-centric Temporal…

Computer Vision and Pattern Recognition · Computer Science 2023-09-13 Yuerong Li , Zhengrong Xue , Huazhe Xu

Few-shot anomaly detection methods can effectively address data collecting difficulty in industrial scenarios. Compared to 2D few-shot anomaly detection (2D-FSAD), 3D few-shot anomaly detection (3D-FSAD) is still an unexplored but essential…

Computer Vision and Pattern Recognition · Computer Science 2024-06-28 Zuo Zuo , Jiahao Dong , Yao Wu , Yanyun Qu , Zongze Wu

We consider the problem of retrieving objects from image data and learning to classify them into meaningful semantic categories with minimal supervision. To that end, we propose a fully differentiable unsupervised deep clustering approach…

Computer Vision and Pattern Recognition · Computer Science 2018-07-25 Steven Hickson , Anelia Angelova , Irfan Essa , Rahul Sukthankar

Nucleus instance segmentation from histopathology images suffers from the extremely laborious and expert-dependent annotation of nucleus instances. As a promising solution to this task, annotation-efficient deep learning paradigms have…

Computer Vision and Pattern Recognition · Computer Science 2024-02-29 Yu Ming , Zihao Wu , Jie Yang , Danyi Li , Yuan Gao , Changxin Gao , Gui-Song Xia , Yuanqing Li , Li Liang , Jin-Gang Yu

The essence of unsupervised anomaly detection is to learn the compact distribution of normal samples and detect outliers as anomalies in testing. Meanwhile, the anomalies in real-world are usually subtle and fine-grained in a…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Ye Zheng , Xiang Wang , Rui Deng , Tianpeng Bao , Rui Zhao , Liwei Wu

Existing weakly-supervised semantic segmentation methods using image-level annotations typically rely on initial responses to locate object regions. However, such response maps generated by the classification network usually focus on…

Computer Vision and Pattern Recognition · Computer Science 2020-08-05 Yu-Ting Chang , Qiaosong Wang , Wei-Chih Hung , Robinson Piramuthu , Yi-Hsuan Tsai , Ming-Hsuan Yang

Few-shot segmentation has garnered significant attention. Many recent approaches attempt to introduce the Segment Anything Model (SAM) to handle this task. With the strong generalization ability and rich object-specific extraction ability…

Computer Vision and Pattern Recognition · Computer Science 2025-11-20 Jin Wang , Bingfeng Zhang , Jian Pang , Weifeng Liu , Baodi Liu , Honglong Chen

The recent progress in neural architecture search (NAS) has allowed scaling the automated design of neural architectures to real-world domains, such as object detection and semantic segmentation. However, one prerequisite for the…

Machine Learning · Computer Science 2021-06-15 Thomas Elsken , Benedikt Staffler , Jan Hendrik Metzen , Frank Hutter