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Current unsupervised anomaly localization approaches rely on generative models to learn the distribution of normal images, which is later used to identify potential anomalous regions derived from errors on the reconstructed images. However,…

Image and Video Processing · Electrical Eng. & Systems 2022-07-13 Julio Silva-Rodríguez , Valery Naranjo , Jose Dolz

Current unsupervised anomaly localization approaches rely on generative models to learn the distribution of normal images, which is later used to identify potential anomalous regions derived from errors on the reconstructed images. However,…

Image and Video Processing · Electrical Eng. & Systems 2021-10-29 Julio Silva-Rodríguez , Valery Naranjo , Jose Dolz

Instance segmentation is of great importance for many biological applications, such as study of neural cell interactions, plant phenotyping, and quantitatively measuring how cells react to drug treatment. In this paper, we propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2021-06-15 Jingru Yi , Pengxiang Wu , Hui Tang , Bo Liu , Qiaoying Huang , Hui Qu , Lianyi Han , Wei Fan , Daniel J. Hoeppner , Dimitris N. Metaxas

Object recognition and instance segmentation are fundamental skills in any robotic or autonomous system. Existing state-of-the-art methods are often unable to capture meaningful uncertainty in challenging or ambiguous scenes, and as such…

Computer Vision and Pattern Recognition · Computer Science 2023-05-04 YuXuan Liu , Nikhil Mishra , Pieter Abbeel , Xi Chen

Marine debris poses a significant threat to the survival of marine wildlife, often leading to entanglement and starvation, ultimately resulting in death. Therefore, removing debris from the ocean is crucial to restore the natural balance…

Computer Vision and Pattern Recognition · Computer Science 2023-11-02 Mohana Sri S , Swethaa S , Aouthithiye Barathwaj SR Y , Sai Ganesh CS

To operate safely, autonomous vehicles (AVs) need to detect and handle unexpected objects or anomalies on the road. While significant research exists for anomaly detection and segmentation in 2D, research progress in 3D is underexplored.…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 Alexey Nekrasov , Malcolm Burdorf , Stewart Worrall , Bastian Leibe , Julie Stephany Berrio Perez

Out-of-Distribution (OoD) segmentation is critical for safety-sensitive applications like autonomous driving. However, existing mask-based methods often suffer from boundary imprecision, inconsistent anomaly scores within objects, and false…

Computer Vision and Pattern Recognition · Computer Science 2025-07-14 Jeonghoon Song , Sunghun Kim , Jaegyun Im , Byeongjoon Noh

Semantic segmentation methods can not directly identify abnormal objects in images. Anomaly Segmentation algorithm from this realistic setting can distinguish between in-distribution objects and Out-Of-Distribution (OOD) objects and output…

Computer Vision and Pattern Recognition · Computer Science 2022-03-16 Yiqing Hao , Yi Jin , Gaoyun An

Autonomous vehicles that navigate in open-world environments may encounter previously unseen object classes. However, most existing LiDAR panoptic segmentation models rely on closed-set assumptions, failing to detect unknown object…

Computer Vision and Pattern Recognition · Computer Science 2025-09-04 Rohit Mohan , Julia Hindel , Florian Drews , Claudius Gläser , Daniele Cattaneo , Abhinav Valada

With the growing deployment of autonomous driving agents, the detection and segmentation of road obstacles have become critical to ensure safe autonomous navigation. However, existing road-obstacle segmentation methods are applied on…

Computer Vision and Pattern Recognition · Computer Science 2025-09-17 Shyam Nandan Rai , Shyamgopal Karthik , Mariana-Iuliana Georgescu , Barbara Caputo , Carlo Masone , Zeynep Akata

Anomaly detection from a driver's perspective when driving is important to autonomous vehicles. As a part of Advanced Driver Assistance Systems (ADAS), it can remind the driver about dangers timely. Compared with traditional studied scenes…

Computer Vision and Pattern Recognition · Computer Science 2019-05-01 Yuan Yuan , Dong Wang , Qi Wang

Anomaly awareness is an essential capability for safety-critical applications such as autonomous driving. While recent progress of robotics and computer vision has enabled anomaly detection for image classification, anomaly detection on…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Guan-Rong Lu , Yueh-Cheng Liu , Tung-I Chen , Hung-Ting Su , Tsung-Han Wu , Winston H. Hsu

Semi-supervised learning relaxes the need of large pixel-wise labeled datasets for image segmentation by leveraging unlabeled data. A prominent way to exploit unlabeled data is to regularize model predictions. Since the predictions of…

Computer Vision and Pattern Recognition · Computer Science 2023-10-26 Sukesh Adiga , Jose Dolz , Herve Lombaert

Weakly supervised instance segmentation reduces the cost of annotations required to train models. However, existing approaches which rely only on image-level class labels predominantly suffer from errors due to (a) partial segmentation of…

Computer Vision and Pattern Recognition · Computer Science 2021-03-25 Qing Liu , Vignesh Ramanathan , Dhruv Mahajan , Alan Yuille , Zhenheng Yang

Instance segmentation with neural networks is an essential task in environment perception. In many works, it has been observed that neural networks can predict false positive instances with high confidence values and true positives with low…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Kira Maag , Matthias Rottmann , Serin Varghese , Fabian Hueger , Peter Schlicht , Hanno Gottschalk

We introduce uncertainty-aware object instance segmentation (UncOS) and demonstrate its usefulness for embodied interactive segmentation. To deal with uncertainty in robot perception, we propose a method for generating a hypothesis…

Robotics · Computer Science 2024-08-12 Xiaolin Fang , Leslie Pack Kaelbling , Tomás Lozano-Pérez

In order to successfully perform manipulation tasks in new environments, such as grasping, robots must be proficient in segmenting unseen objects from the background and/or other objects. Previous works perform unseen object instance…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Howard H. Qian , Yangxiao Lu , Kejia Ren , Gaotian Wang , Ninad Khargonkar , Yu Xiang , Kaiyu Hang

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

Detecting road obstacles is essential for autonomous vehicles to navigate dynamic and complex traffic environments safely. Current road obstacle detection methods typically assign a score to each pixel and apply a threshold to generate…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Youssef Shoeb , Nazir Nayal , Azarm Nowzad , Fatma Güney , Hanno Gottschalk

In this paper, we introduce a brand new dataset to promote the study of instance segmentation for objects with irregular shapes. Our key observation is that though irregularly shaped objects widely exist in daily life and industrial…

Computer Vision and Pattern Recognition · Computer Science 2021-10-01 Lei Yang , Yan Zi Wei , Yisheng HE , Wei Sun , Zhenhang Huang , Haibin Huang , Haoqiang Fan