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Object-centric slot attention is a powerful framework for unsupervised learning of structured and explainable representations that can support reasoning about objects and actions, including in surgical videos. While conventional…

Image and Video Processing · Electrical Eng. & Systems 2026-03-04 Guiqiu Liao , Matjaz Jogan , Marcel Hussing , Kenta Nakahashi , Kazuhiro Yasufuku , Amin Madani , Eric Eaton , Daniel A. Hashimoto

Contrastive image-text models such as CLIP form the building blocks of many state-of-the-art systems. While they excel at recognizing common generic concepts, they still struggle on fine-grained entities which are rare, or even absent from…

Computer Vision and Pattern Recognition · Computer Science 2024-02-22 Ahmet Iscen , Mathilde Caron , Alireza Fathi , Cordelia Schmid

Contrastive Learning (CL) has been successfully applied to classification and other downstream tasks related to concrete concepts, such as objects contained in the ImageNet dataset. No attempts seem to have been made so far in applying this…

Machine Learning · Computer Science 2025-05-30 Daniel N. Nissani

Dense correspondence across semantically related images has been extensively studied, but still faces two challenges: 1) large variations in appearance, scale and pose exist even for objects from the same category, and 2) labeling…

Computer Vision and Pattern Recognition · Computer Science 2022-03-11 Taihong Xiao , Sifei Liu , Shalini De Mello , Zhiding Yu , Jan Kautz , Ming-Hsuan Yang

Self-supervised contrastive learning has emerged as a powerful paradigm for skeleton-based action recognition by enforcing consistency in the embedding space. However, existing methods rely on binary contrastive objectives that overlook the…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Yingjie Feng , Yi Wang , Jiaze Wang , Anfeng Liu , Zhuotao Tian

Following recent breakthroughs in convolutional neural networks and monolithic model architectures, state-of-the-art object detection models can reliably and accurately scale into the realm of up to thousands of classes. Things quickly…

Computer Vision and Pattern Recognition · Computer Science 2017-11-30 Aayush Garg , Thilo Will , William Darling , Willi Richert , Clemens Marschner

In this paper, we explore contrastive learning for few-shot classification, in which we propose to use it as an additional auxiliary training objective acting as a data-dependent regularizer to promote more general and transferable…

Computer Vision and Pattern Recognition · Computer Science 2021-06-22 Yassine Ouali , Céline Hudelot , Myriam Tami

Recently, self-supervised representation learning gives further development in multimedia technology. Most existing self-supervised learning methods are applicable to packaged data. However, when it comes to streamed data, they are…

Computer Vision and Pattern Recognition · Computer Science 2022-11-03 Zhiwei Lin , Yongtao Wang , Hongxiang Lin

We propose continual instance learning - a method that applies the concept of continual learning to the task of distinguishing instances of the same object category. We specifically focus on the car object, and incrementally learn to…

Computer Vision and Pattern Recognition · Computer Science 2020-04-24 Kishan Parshotam , Mert Kilickaya

Continual learning allows a model to learn multiple tasks sequentially while retaining the old knowledge without the training data of the preceding tasks. This paper extends the scope of continual learning research to class-incremental…

Computer Vision and Pattern Recognition · Computer Science 2023-10-06 Zhizheng Liu , Mattia Segu , Fisher Yu

Learning compositional representation is a key aspect of object-centric learning as it enables flexible systematic generalization and supports complex visual reasoning. However, most of the existing approaches rely on auto-encoding…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Whie Jung , Jaehoon Yoo , Sungjin Ahn , Seunghoon Hong

Contrastive learning is a major studied topic in metric learning. However, sampling effective contrastive pairs remains a challenge due to factors such as limited batch size, imbalanced data distribution, and the risk of overfitting. In…

Computer Vision and Pattern Recognition · Computer Science 2023-08-02 Bolun Cai , Pengfei Xiong , Shangxuan Tian

Slot Attention, an approach that binds different objects in a scene to a set of "slots", has become a leading method in unsupervised object-centric learning. Most methods assume a fixed slot count K, and to better accommodate the dynamic…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Tianran Ouyang , Xingping Dong , Jing Zhang , Mang Ye , Jun Chen , Bo Du

As an exemplary self-supervised approach for representation learning, time-series contrastive learning has exhibited remarkable advancements in contemporary research. While recent contrastive learning strategies have focused on how to…

Machine Learning · Computer Science 2024-08-27 Xiyuan Jin , Jing Wang , Lei Liu , Youfang Lin

This paper proposes a novel paradigm for the unsupervised learning of object landmark detectors. Contrary to existing methods that build on auxiliary tasks such as image generation or equivariance, we propose a self-training approach where,…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Dimitrios Mallis , Enrique Sanchez , Matt Bell , Georgios Tzimiropoulos

The success of most advanced facial expression recognition works relies heavily on large-scale annotated datasets. However, it poses great challenges in acquiring clean and consistent annotations for facial expression datasets. On the other…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Yuxuan Shu , Xiao Gu , Guang-Zhong Yang , Benny Lo

What matters for contrastive learning? We argue that contrastive learning heavily relies on informative features, or "hard" (positive or negative) features. Early works include more informative features by applying complex data…

Computer Vision and Pattern Recognition · Computer Science 2023-08-10 Jiangmeng Li , Wenwen Qiang , Changwen Zheng , Bing Su , Hui Xiong

Multi-channel video-language retrieval require models to understand information from different channels (e.g. video$+$question, video$+$speech) to correctly link a video with a textual response or query. Fortunately, contrastive multimodal…

Computer Vision and Pattern Recognition · Computer Science 2023-04-12 Xudong Lin , Simran Tiwari , Shiyuan Huang , Manling Li , Mike Zheng Shou , Heng Ji , Shih-Fu Chang

Conventional object detectors rely on cross-entropy classification, which can be vulnerable to class imbalance and label noise. We propose CLIP-Joint-Detect, a simple and detector-agnostic framework that integrates CLIP-style contrastive…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Behnam Raoufi , Hossein Sharify , Mohamad Mahdee Ramezanee , Khosrow Hajsadeghi , Saeed Bagheri Shouraki

Camouflaged object detection (COD), aiming to segment camouflaged objects which exhibit similar patterns with the background, is a challenging task. Most existing works are dedicated to establishing specialized modules to identify…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Yinghui Xing , Dexuan Kong , Shizhou Zhang , Geng Chen , Lingyan Ran , Peng Wang , Yanning Zhang