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As we move towards large-scale object detection, it is unrealistic to expect annotated training data, in the form of bounding box annotations around objects, for all object classes at sufficient scale, and so methods capable of unseen…

Computer Vision and Pattern Recognition · Computer Science 2019-03-20 Pengkai Zhu , Hanxiao Wang , Venkatesh Saligrama

Acquiring knowledge about object interactions and affordances can facilitate scene understanding and human-robot collaboration tasks. As humans tend to use objects in many different ways depending on the scene and the objects' availability,…

Artificial Intelligence · Computer Science 2023-04-13 Alexia Toumpa , Anthony G. Cohn

In a real-world setting, visual recognition systems can be brought to make predictions for images belonging to previously unknown class labels. In order to make semantically meaningful predictions for such inputs, we propose a two-step…

Machine Learning · Computer Science 2017-08-29 Vincent P. A. Lonij , Ambrish Rawat , Maria-Irina Nicolae

Object-centric learning (OCL) seeks to learn representations that only encode an object, isolated from other objects or background cues in a scene. This approach underpins various aims, including out-of-distribution (OOD) generalization,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Alexander Rubinstein , Ameya Prabhu , Matthias Bethge , Seong Joon Oh

This work introduces a model that can recognize objects in images even if no training data is available for the objects. The only necessary knowledge about the unseen categories comes from unsupervised large text corpora. In our zero-shot…

Computer Vision and Pattern Recognition · Computer Science 2013-03-21 Richard Socher , Milind Ganjoo , Hamsa Sridhar , Osbert Bastani , Christopher D. Manning , Andrew Y. Ng

Visual object counting has recently shifted towards class-agnostic counting (CAC), which addresses the challenge of counting objects across arbitrary categories, a crucial capability for flexible and generalizable counting systems. Unlike…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Luca Ciampi , Ali Azmoudeh , Elif Ecem Akbaba , Erdi Sarıtaş , Ziya Ata Yazıcı , Hazım Kemal Ekenel , Giuseppe Amato , Fabrizio Falchi

We propose a new approach for Zero-Shot Human-Object Interaction Recognition in the challenging setting that involves interactions with unseen actions (as opposed to just unseen combinations of seen actions and objects). Our approach makes…

Computer Vision and Pattern Recognition · Computer Science 2020-09-03 Alessio Sarullo , Tingting Mu

Recent object detectors have achieved impressive accuracy in identifying objects seen during training. However, real-world deployment often introduces novel and unexpected objects, referred to as out-of-distribution (OOD) objects, posing…

Machine Learning · Computer Science 2025-11-20 Quang-Huy Nguyen , Jin Peng Zhou , Zhenzhen Liu , Khanh-Huyen Bui , Kilian Q. Weinberger , Wei-Lun Chao , Dung D. Le

Open-set object detection (OSOD) aims to detect the known categories and reject unknown objects in a dynamic world, which has achieved significant attention. However, previous approaches only consider this problem in data-abundant…

Computer Vision and Pattern Recognition · Computer Science 2024-02-23 Binyi Su , Hua Zhang , Jingzhi Li , Zhong Zhou

Object detection models perform well at localizing and classifying objects that they are shown during training. However, due to the difficulty and cost associated with creating and annotating detection datasets, trained models detect a…

Computer Vision and Pattern Recognition · Computer Science 2020-12-01 Ayush Jaiswal , Yue Wu , Pradeep Natarajan , Premkumar Natarajan

This paper investigates the problem of zero-shot action recognition, in the setting where no training videos with seen actions are available. For this challenging scenario, the current leading approach is to transfer knowledge from the…

Computer Vision and Pattern Recognition · Computer Science 2021-10-27 Carlo Bretti , Pascal Mettes

Current closed-set instance segmentation models rely on pre-defined class labels for each mask during training and evaluation, largely limiting their ability to detect novel objects. Open-world instance segmentation (OWIS) models address…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Muzhi Zhu , Hengtao Li , Hao Chen , Chengxiang Fan , Weian Mao , Chenchen Jing , Yifan Liu , Chunhua Shen

This paper addresses the semantic instance segmentation task in the open-set conditions, where input images can contain known and unknown object classes. The training process of existing semantic instance segmentation methods requires…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Trung Pham , Vijay Kumar B G , Thanh-Toan Do , Gustavo Carneiro , Ian Reid

Open World Object Detection (OWOD) is a challenging computer vision problem that requires detecting unknown objects and gradually learning the identified unknown classes. However, it cannot distinguish unknown instances as multiple unknown…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Zhiheng Wu , Yue Lu , Xingyu Chen , Zhengxing Wu , Liwen Kang , Junzhi Yu

Traditional image recognition methods only consider objects belonging to already learned classes. However, since training a recognition model with every object class in the world is unfeasible, a way of getting information on unknown…

Computer Vision and Pattern Recognition · Computer Science 2018-08-07 Kohei Uehara , Antonio Tejero-De-Pablos , Yoshitaka Ushiku , Tatsuya Harada

Open-Set Object Detection (OSOD) is crucial for autonomous driving, where perception systems must recognize and localize both known and previously unseen objects in complex, dynamic environments. While recent approaches deliver promising…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Yuchen Zhang , Yao Lu , Johannes Betz

Class-agnostic object counting aims to count object instances of an arbitrary class at test time. It is challenging but also enables many potential applications. Current methods require human-annotated exemplars as inputs which are often…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Jingyi Xu , Hieu Le , Vu Nguyen , Viresh Ranjan , Dimitris Samaras

Open-set object detection (OSOD), a task involving the detection of unknown objects while accurately detecting known objects, has recently gained attention. However, we identify a fundamental issue with the problem formulation employed in…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Yusuke Hosoya , Masanori Suganuma , Takayuki Okatani

Given semantic descriptions of object classes, zero-shot learning aims to accurately recognize objects of the unseen classes, from which no examples are available at the training stage, by associating them to the seen classes, from which…

Computer Vision and Pattern Recognition · Computer Science 2016-05-31 Soravit Changpinyo , Wei-Lun Chao , Boqing Gong , Fei Sha

Recent works on predictive uncertainty estimation have shown promising results on Out-Of-Distribution (OOD) detection for semantic segmentation. However, these methods struggle to precisely locate the point of interest in the image, i.e,…

Computer Vision and Pattern Recognition · Computer Science 2022-08-30 Victor Besnier , Andrei Bursuc , David Picard , Alexandre Briot