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Pre-trained segmentation models are a powerful and flexible tool for segmenting images. Recently, this trend has extended to medical imaging. Yet, often these methods only produce a single prediction for a given image, neglecting inherent…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Benjamin Towle , Xin Chen , Ke Zhou

We present a novel end-to-end single-shot method that segments countable object instances (things) as well as background regions (stuff) into a non-overlapping panoptic segmentation at almost video frame rate. Current state-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2020-09-01 Mark Weber , Jonathon Luiten , Bastian Leibe

Modern approaches typically formulate semantic segmentation as a per-pixel classification task, while instance-level segmentation is handled with an alternative mask classification. Our key insight: mask classification is sufficiently…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Bowen Cheng , Alexander G. Schwing , Alexander Kirillov

In design of instance segmentation networks that reconstruct masks, segmentation is often taken as its literal definition -- assigning each pixel a label. This has led to thinking the problem as a template matching one with the goal of…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Quang H. Le , Kamal Youcef-Toumi , Dzmitry Tsetserukou , Ali Jahanian

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

Generalizing open-vocabulary 3D instance segmentation (OV-3DIS) to diverse, unstructured, and mesh-free environments is crucial for robotics and AR/VR, yet remains a significant challenge. We attribute this to two key limitations of…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Zhishan Zhou , Siyuan Wei , Zengran Wang , Chunjie Wang , Xiaosheng Yan , Xiao Liu

Panoptic segmentation, which needs to assign a category label to each pixel and segment each object instance simultaneously, is a challenging topic. Traditionally, the existing approaches utilize two independent models without sharing…

Computer Vision and Pattern Recognition · Computer Science 2019-03-14 Huanyu Liu , Chao Peng , Changqian Yu , Jingbo Wang , Xu Liu , Gang Yu , Wei Jiang

Although the Segment Anything Model (SAM) is highly effective in natural image segmentation, it requires dependencies on prompts, which limits its applicability to medical imaging where manual prompts are often unavailable. Existing efforts…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Mengmeng Zhang , Xingyuan Dai , Yicheng Sun , Jing Wang , Yueyang Yao , Xiaoyan Gong , Fuze Cong , Feiyue Wang , Yisheng Lv

This paper introduces a diffusion-based framework for universal image segmentation, making agnostic segmentation possible without depending on mask-based frameworks and instead predicting the full segmentation in a holistic manner. We…

Computer Vision and Pattern Recognition · Computer Science 2026-01-07 Jakob Lønborg Christensen , Morten Rieger Hannemose , Anders Bjorholm Dahl , Vedrana Andersen Dahl

Recently, open-vocabulary learning has emerged to accomplish segmentation for arbitrary categories of text-based descriptions, which popularizes the segmentation system to more general-purpose application scenarios. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Jie Qin , Jie Wu , Pengxiang Yan , Ming Li , Ren Yuxi , Xuefeng Xiao , Yitong Wang , Rui Wang , Shilei Wen , Xin Pan , Xingang Wang

We propose a method for unsupervised video object segmentation by transferring the knowledge encapsulated in image-based instance embedding networks. The instance embedding network produces an embedding vector for each pixel that enables…

Computer Vision and Pattern Recognition · Computer Science 2018-02-28 Siyang Li , Bryan Seybold , Alexey Vorobyov , Alireza Fathi , Qin Huang , C. -C. Jay Kuo

Sliding-window object detectors that generate bounding-box object predictions over a dense, regular grid have advanced rapidly and proven popular. In contrast, modern instance segmentation approaches are dominated by methods that first…

Computer Vision and Pattern Recognition · Computer Science 2019-08-29 Xinlei Chen , Ross Girshick , Kaiming He , Piotr Dollár

The emerging scale segmentation model, Segment Anything (SAM), exhibits impressive capabilities in zero-shot segmentation for natural images. However, when applied to medical images, SAM suffers from noticeable performance drop. To make SAM…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Xinrong Hu , Xiaowei Xu , Yiyu Shi

Existing instance segmentation methods have achieved impressive performance but still suffer from a common dilemma: redundant representations (e.g., multiple boxes, grids, and anchor points) are inferred for one instance, which leads to…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Yimin Ou , Rui Yang , Lufan Ma , Yong Liu , Jiangpeng Yan , Shang Xu , Chengjie Wang , Xiu Li

The Segment Anything Model (SAM) has achieved a notable success in two-dimensional image segmentation in natural images. However, the substantial gap between medical and natural images hinders its direct application to medical image…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Quan Quan , Fenghe Tang , Zikang Xu , Heqin Zhu , S. Kevin Zhou

Recent works on open-vocabulary 3D instance segmentation show strong promise, but at the cost of slow inference speed and high computation requirements. This high computation cost is typically due to their heavy reliance on 3D clip…

Computer Vision and Pattern Recognition · Computer Science 2025-02-14 Mohamed El Amine Boudjoghra , Angela Dai , Jean Lahoud , Hisham Cholakkal , Rao Muhammad Anwer , Salman Khan , Fahad Shahbaz Khan

Modern one-stage video instance segmentation networks suffer from two limitations. First, convolutional features are neither aligned with anchor boxes nor with ground-truth bounding boxes, reducing the mask sensitivity to spatial location.…

Computer Vision and Pattern Recognition · Computer Science 2021-04-13 Minghan Li , Shuai Li , Lida Li , Lei Zhang

The existing segmentation techniques require high-fidelity images as input to perform semantic segmentation. Since the segmentation results contain most of edge information that is much less than the acquired images, the throughput gap…

Image and Video Processing · Electrical Eng. & Systems 2021-08-25 Haiyan Liu , Liheng Bian , Jun Zhang

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

Image saliency detection has recently witnessed rapid progress due to deep convolutional neural networks. However, none of the existing methods is able to identify object instances in the detected salient regions. In this paper, we present…

Computer Vision and Pattern Recognition · Computer Science 2017-04-13 Guanbin Li , Yuan Xie , Liang Lin , Yizhou Yu