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High-quality instance and panoptic segmentation has traditionally relied on dense instance-level annotations such as masks, boxes, or points, which are costly, inconsistent, and difficult to scale. Unsupervised and weakly-supervised…

Computer Vision and Pattern Recognition · Computer Science 2026-02-26 Sanghyun Jo , Ziseok Lee , Wooyeol Lee , Jonghyun Choi , Jaesik Park , Kyungsu Kim

Enlarging input images is a straightforward and effective approach to promote small object detection. However, simple image enlargement is significantly expensive on both computations and GPU memory. In fact, small objects are usually…

Computer Vision and Pattern Recognition · Computer Science 2024-12-18 Kai Liu , Zhihang Fu , Sheng Jin , Ze Chen , Fan Zhou , Rongxin Jiang , Yaowu Chen , Jieping Ye

Instance segmentation is one of the fundamental vision tasks. Recently, fully convolutional instance segmentation methods have drawn much attention as they are often simpler and more efficient than two-stage approaches like Mask R-CNN. To…

Computer Vision and Pattern Recognition · Computer Science 2020-04-28 Hao Chen , Kunyang Sun , Zhi Tian , Chunhua Shen , Yongming Huang , Youliang Yan

Video instance segmentation (VIS) is the task that requires simultaneously classifying, segmenting and tracking object instances of interest in video. Recent methods typically develop sophisticated pipelines to tackle this task. Here, we…

Computer Vision and Pattern Recognition · Computer Science 2021-10-11 Yuqing Wang , Zhaoliang Xu , Xinlong Wang , Chunhua Shen , Baoshan Cheng , Hao Shen , Huaxia Xia

Estimating the target extent poses a fundamental challenge in visual object tracking. Typically, trackers are box-centric and fully rely on a bounding box to define the target in the scene. In practice, objects often have complex shapes and…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Matthieu Paul , Martin Danelljan , Christoph Mayer , Luc Van Gool

Existing methods for pixel-wise labelling tasks generally disregard the underlying structure of labellings, often leading to predictions that are visually implausible. While incorporating structure into the model should improve prediction…

Computer Vision and Pattern Recognition · Computer Science 2016-06-13 Ke Li , Bharath Hariharan , Jitendra Malik

We introduce Equivariant Neural Field Expectation Maximization (EFEM), a simple, effective, and robust geometric algorithm that can segment objects in 3D scenes without annotations or training on scenes. We achieve such unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Jiahui Lei , Congyue Deng , Karl Schmeckpeper , Leonidas Guibas , Kostas Daniilidis

Models based on Convolutional Neural Networks (CNNs) have been proven very successful for semantic segmentation and object parsing that yield hierarchies of features. Our key insight is to build convolutional networks that take input of…

Artificial Intelligence · Computer Science 2017-10-31 Jalal Mirakhorli , Hamidreza Amindavar

Camouflaged object detection (COD) aims to generate a fine-grained segmentation map of camouflaged objects hidden in their background. Due to the hidden nature of camouflaged objects, it is essential for the decoder to be tailored to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Seung Woo Ko , Joopyo Hong , Suyoung Kim , Seungjai Bang , Sungzoon Cho , Nojun Kwak , Hyung-Sin Kim , Joonseok Lee

We consider the problem of referring camouflaged object detection (Ref-COD), a new task that aims to segment specified camouflaged objects based on a small set of referring images with salient target objects. We first assemble a large-scale…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Xuying Zhang , Bowen Yin , Zheng Lin , Qibin Hou , Deng-Ping Fan , Ming-Ming Cheng

We propose SegVec3D, a novel framework for 3D point cloud instance segmentation that integrates attention mechanisms, embedding learning, and cross-modal alignment. The approach builds a hierarchical feature extractor to enhance geometric…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Zhihan Kang , Boyu Wang

Instance-level segmentation of documents consists in assigning a class-aware and instance-aware label to each pixel of the image. It is a key step in document parsing for their understanding. In this paper, we present a unified transformer…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Ayan Banerjee , Sanket Biswas , Josep Lladós , Umapada Pal

In modern video coding standards, block-based inter prediction is widely adopted, which brings high compression efficiency. However, in natural videos, there are usually multiple moving objects of arbitrary shapes, resulting in complex…

Image and Video Processing · Electrical Eng. & Systems 2024-09-13 Zhuoyuan Li , Zikun Yuan , Li Li , Dong Liu , Xiaohu Tang , Feng Wu

We propose a new and, arguably, a very simple reduction of instance segmentation to semantic segmentation. This reduction allows to train feed-forward non-recurrent deep instance segmentation systems in an end-to-end fashion using…

Computer Vision and Pattern Recognition · Computer Science 2018-07-27 Victor Kulikov , Victor Yurchenko , Victor Lempitsky

Instance segmentation in remote sensing images is a long-standing challenge. Since horizontal bounding boxes introduce many interference objects, oriented bounding boxes (OBBs) are usually used for instance identification. However, based on…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Zhen Zhou , Junfeng Fan , Yunkai Ma , Sihan Zhao , Fengshui Jing , Min Tan

Edge computing enables data processing closer to the source, significantly reducing latency, an essential requirement for real-time vision-based analytics such as object detection in surveillance and smart city environments. However, these…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-02-04 Daghash K. Alqahtani , Maria A. Rodriguez , Muhammad Aamir Cheema , Hamid Rezatofighi , Adel N. Toosi

Recent object detection systems rely on two critical steps: (1) a set of object proposals is predicted as efficiently as possible, and (2) this set of candidate proposals is then passed to an object classifier. Such approaches have been…

Computer Vision and Pattern Recognition · Computer Science 2015-09-02 Pedro O. Pinheiro , Ronan Collobert , Piotr Dollar

We propose a novel approach for automatic extraction (instance segmentation) of fibers from low resolution 3D X-ray computed tomography scans of short glass fiber reinforced polymers. We have designed a 3D instance segmentation architecture…

Computer Vision and Pattern Recognition · Computer Science 2019-01-07 Tomasz Konopczyński , Thorben Kröger , Lei Zheng , Jürgen Hesser

Two-stage and query-based instance segmentation methods have achieved remarkable results. However, their segmented masks are still very coarse. In this paper, we present Mask Transfiner for high-quality and efficient instance segmentation.…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Lei Ke , Martin Danelljan , Xia Li , Yu-Wing Tai , Chi-Keung Tang , Fisher Yu

In contrast to the fully supervised methods using pixel-wise mask labels, box-supervised instance segmentation takes advantage of the simple box annotations, which has recently attracted a lot of research attentions. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Wentong Li , Wenyu Liu , Jianke Zhu , Miaomiao Cui , Xiansheng Hua , Lei Zhang