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Coarse-to-fine 3D instance segmentation methods show weak performances compared to recent Grouping-based, Kernel-based and Transformer-based methods. We argue that this is due to two limitations: 1) Instance size overestimation by…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Sangyun Shin , Kaichen Zhou , Madhu Vankadari , Andrew Markham , Niki Trigoni

Low level features like edges and textures play an important role in accurately localizing instances in neural networks. In this paper, we propose an architecture which improves feature pyramid networks commonly used instance segmentation…

Computer Vision and Pattern Recognition · Computer Science 2019-04-02 Yongqing Sun , Pranav Shenoy K P , Jun Shimamura , Atsushi Sagata

The goal of this paper is to discover, segment, and track independently moving objects in complex visual scenes. Previous approaches have explored the use of optical flow for motion segmentation, leading to imperfect predictions due to…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Junyu Xie , Weidi Xie , Andrew Zisserman

Edge detection has long been an important problem in the field of computer vision. Previous works have explored category-agnostic or category-aware edge detection. In this paper, we explore edge detection in the context of object instances.…

Computer Vision and Pattern Recognition · Computer Science 2022-04-07 Xueyan Zou , Haotian Liu , Yong Jae Lee

As a proposal-free approach, instance segmentation through pixel embedding learning and clustering is gaining more emphasis. Compared with bounding box refinement approaches, such as Mask R-CNN, it has potential advantages in handling…

Computer Vision and Pattern Recognition · Computer Science 2026-02-23 Yuli Wu , Long Chen , Dorit Merhof

Recent object detectors use four-coordinate bounding box (bbox) regression to predict object locations. Providing additional information indicating the object positions and coordinates will improve detection performance. Thus, we propose…

Computer Vision and Pattern Recognition · Computer Science 2019-08-01 Ba Rom Kang , Ha Young Kim

In this study, we applied the PointRend (Point-based Rendering) method to semiconductor defect segmentation. PointRend is an iterative segmentation algorithm inspired by image rendering in computer graphics, a new image segmentation method…

Computer Vision and Pattern Recognition · Computer Science 2023-06-08 MinJin Hwang , Bappaditya Dey , Enrique Dehaerne , Sandip Halder , Young-han Shin

Current instance segmentation models achieve high performance on average predictions, but lack principled uncertainty quantification: their outputs are not calibrated, and there is no guarantee that a predicted mask is close to the ground…

Computer Vision and Pattern Recognition · Computer Science 2026-02-11 Kerri Lu , Dan M. Kluger , Stephen Bates , Sherrie Wang

Obtaining precise instance segmentation masks is of high importance in many modern applications such as robotic manipulation and autonomous driving. Currently, many state of the art models are based on the Mask R-CNN framework which, while…

Computer Vision and Pattern Recognition · Computer Science 2020-07-31 Namdar Homayounfar , Yuwen Xiong , Justin Liang , Wei-Chiu Ma , Raquel Urtasun

Although deep models have greatly improved the accuracy and robustness of image segmentation, obtaining segmentation results with highly accurate boundaries and fine structures is still a challenging problem. In this paper, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2021-05-12 Xuebin Qin , Deng-Ping Fan , Chenyang Huang , Cyril Diagne , Zichen Zhang , Adrià Cabeza Sant'Anna , Albert Suàrez , Martin Jagersand , Ling Shao

Letting a deep network be aware of the quality of its own predictions is an interesting yet important problem. In the task of instance segmentation, the confidence of instance classification is used as mask quality score in most instance…

Computer Vision and Pattern Recognition · Computer Science 2019-03-04 Zhaojin Huang , Lichao Huang , Yongchao Gong , Chang Huang , Xinggang Wang

Instance segmentation plays a pivotal role in medical image analysis by enabling precise localization and delineation of lesions, tumors, and anatomical structures. Although deep learning models such as Mask R-CNN and BlendMask have…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Mengxia Dai , Wenqian Luo , Tianyang Li

Unsupervised instance segmentation aims to segment distinct object instances in an image without relying on human-labeled data. This field has recently seen significant advancements, partly due to the strong local correspondences afforded…

Computer Vision and Pattern Recognition · Computer Science 2024-09-30 Dylan Li , Gyungin Shin

Current state-of-the-art instance segmentation methods are not suited for real-time applications like autonomous driving, which require fast execution times at high accuracy. Although the currently dominant proposal-based methods have high…

Computer Vision and Pattern Recognition · Computer Science 2019-08-05 Davy Neven , Bert De Brabandere , Marc Proesmans , Luc Van Gool

Mask R-CNN has recently achieved great success in the field of instance segmentation. However, weaknesses of the algorithm have been repeatedly pointed out as well, especially in the segmentation of long, sparse objects whose orientation is…

Computer Vision and Pattern Recognition · Computer Science 2022-03-09 Moritz Zink , Martin Schiele , Pengcheng Fan , Stephan Gasterstädt

Pursuing a more coherent scene understanding towards real-time vision applications, single-stage instance segmentation has recently gained popularity, achieving a simpler and more efficient design than its two-stage counterparts. Besides,…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Myungchul Kim , Sanghyun Woo , Dahun Kim , In So Kweon

End-to-end paradigms significantly improve the accuracy of various deep-learning-based computer vision models. To this end, tasks like object detection have been upgraded by replacing non-end-to-end components, such as removing non-maximum…

Computer Vision and Pattern Recognition · Computer Science 2021-05-07 Jie Hu , Liujuan Cao , Yao Lu , ShengChuan Zhang , Yan Wang , Ke Li , Feiyue Huang , Ling Shao , Rongrong Ji

Road segmentation in challenging domains, such as night, snow or rain, is a difficult task. Most current approaches boost performance using fine-tuning, domain adaptation, style transfer, or by referencing previously acquired imagery. These…

Computer Vision and Pattern Recognition · Computer Science 2022-05-30 Connor Malone , Sourav Garg , Ming Xu , Thierry Peynot , Michael Milford

In this work, we present a novel and effective framework to facilitate object detection with the instance-level segmentation information that is only supervised by bounding box annotation. Starting from the joint object detection and…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Xiangyun Zhao , Shuang Liang , Yichen Wei

Boundary incompleteness raises great challenges to automatic prostate segmentation in ultrasound images. Shape prior can provide strong guidance in estimating the missing boundary, but traditional shape models often suffer from hand-crafted…

Computer Vision and Pattern Recognition · Computer Science 2016-12-07 Xin Yang , Lequan Yu , Lingyun Wu , Yi Wang , Dong Ni , Jing Qin , Pheng-Ann Heng