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This paper presents a new self-supervised system for learning to detect novel and previously unseen categories of objects in images. The proposed system receives as input several unlabeled videos of scenes containing various objects. The…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Juntao Tan , Changkyu Song , Abdeslam Boularias

Human object interaction (HOI) detection is an important task in image understanding and reasoning. It is in a form of HOI triplet <human; verb; object>, requiring bounding boxes for human and object, and action between them for the task…

Computer Vision and Pattern Recognition · Computer Science 2020-11-13 Suresh Kirthi Kumaraswamy , Miaojing Shi , Ewa Kijak

We present a novel approach for relocalization or place recognition, a fundamental problem to be solved in many robotics, automation, and AR applications. Rather than relying on often unstable appearance information, we consider a situation…

Robotics · Computer Science 2022-08-30 Lan Hu , Zhongwei Luo , Runze Yuan , Yuchen Cao , Jiaxin Wei , Kai Wangand Laurent Kneip

We create a framework for bootstrapping visual representation learning from a primitive visual grouping capability. We operationalize grouping via a contour detector that partitions an image into regions, followed by merging of those…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Xiao Zhang , Michael Maire

Concealed object detection (COD) in cluttered scenes is significant for various image processing applications. However, due to that concealed objects are always similar to their background, it is extremely hard to distinguish them. Here,…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Yuhan Kang , Qingpeng Li , Leyuan Fang , Jian Zhao , Xuelong Li

Learning object segmentation in image and video datasets without human supervision is a challenging problem. Humans easily identify moving salient objects in videos using the gestalt principle of common fate, which suggests that what moves…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Silky Singh , Shripad Deshmukh , Mausoom Sarkar , Balaji Krishnamurthy

We address the problem of localisation of objects as bounding boxes in images with weak labels. This weakly supervised object localisation problem has been tackled in the past using discriminative models where each object class is localised…

Computer Vision and Pattern Recognition · Computer Science 2017-05-10 Zhiyuan Shi , Timothy M. Hospedales , Tao Xiang

In semi-supervised segmentation, capturing meaningful semantic structures from unlabeled data is essential. This is particularly challenging in histopathology image analysis, where objects are densely distributed. To address this issue, we…

Computer Vision and Pattern Recognition · Computer Science 2025-10-03 Meilong Xu , Xiaoling Hu , Shahira Abousamra , Chen Li , Chao Chen

This paper introduces a novel approach for unsupervised object co-localization using Generative Adversarial Networks (GANs). GAN is a powerful tool that can implicitly learn unknown data distributions in an unsupervised manner. From the…

Computer Vision and Pattern Recognition · Computer Science 2018-07-10 Junsuk Choe , Joo Hyun Park , Hyunjung Shim

Machine-learning algorithms offer immense possibilities in the development of several cognitive applications. In fact, large scale machine-learning classifiers now represent the state-of-the-art in a wide range of object…

Computer Vision and Pattern Recognition · Computer Science 2016-09-21 Priyadarshini Panda , Swagath Venkataramani , Abhronil Sengupta , Anand Raghunathan , Kaushik Roy

We propose a new fast fully unsupervised method to discover semantic patterns. Our algorithm is able to hierarchically find visual categories and produce a segmentation mask where previous methods fail. Through the modeling of what is a…

Computer Vision and Pattern Recognition · Computer Science 2021-02-25 Francesco Pelosin , Andrea Gasparetto , Andrea Albarelli , Andrea Torsello

After learning a new object category from image-level annotations (with no object bounding boxes), humans are remarkably good at precisely localizing those objects. However, building good object localizers (i.e., detectors) currently…

Computer Vision and Pattern Recognition · Computer Science 2020-06-30 Zitian Chen , Zhiqiang Shen , Jiahui Yu , Erik Learned-Miller

Human pose estimation (HPE) usually requires large-scale training data to reach high performance. However, it is rather time-consuming to collect high-quality and fine-grained annotations for human body. To alleviate this issue, we revisit…

Computer Vision and Pattern Recognition · Computer Science 2022-05-26 Xixia Xu , Yingguo Gao , Ke Yan , Xue Lin , Qi Zou

Facilitating an entity's interaction with objects requires accurately identifying parts that afford specific actions. Weakly supervised affordance grounding (WSAG) seeks to imitate human learning from third-person demonstrations, where…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 WonJun Moon , Hyun Seok Seong , Jae-Pil Heo

Recently, a number of competitive methods have tackled unsupervised representation learning by maximising the mutual information between the representations produced from augmentations. The resulting representations are then invariant to…

Computer Vision and Pattern Recognition · Computer Science 2020-03-20 Luke Nicholas Darlow , Amos Storkey

Unsupervised semantic segmentation aims to categorize each pixel in an image into a corresponding class without the use of annotated data. It is a widely researched area as obtaining labeled datasets is expensive. While previous works in…

Computer Vision and Pattern Recognition · Computer Science 2024-01-01 Yau Shing Jonathan Cheung , Xi Chen , Lihe Yang , Hengshuang Zhao

Open-Set Object Detection (OSOD) has emerged as a contemporary research direction to address the detection of unknown objects. Recently, few works have achieved remarkable performance in the OSOD task by employing contrastive clustering to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Hiran Sarkar , Vishal Chudasama , Naoyuki Onoe , Pankaj Wasnik , Vineeth N Balasubramanian

Current Transformer-based methods for small object detection continue emerging, yet they have still exhibited significant shortcomings. This paper introduces HeatMap Position Embedding (HMPE), a novel Transformer Optimization technique that…

Computer Vision and Pattern Recognition · Computer Science 2025-04-21 YangChen Zeng

Weakly supervised object detection is a challenging task when provided with image category supervision but required to learn, at the same time, object locations and object detectors. The inconsistency between the weak supervision and…

Computer Vision and Pattern Recognition · Computer Science 2019-02-19 Fang Wan , Pengxu Wei , Zhenjun Han , Jianbin Jiao , Qixiang Ye

Graph neural networks (GNN) have been proven to be mature enough for handling graph-structured data on node-level graph representation learning tasks. However, the graph pooling technique for learning expressive graph-level representation…

Machine Learning · Computer Science 2021-04-14 Ning Liu , Songlei Jian , Dongsheng Li , Yiming Zhang , Zhiquan Lai , Hongzuo Xu