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3D panoptic segmentation is a challenging perception task, especially in autonomous driving. It aims to predict both semantic and instance annotations for 3D points in a scene. Although prior 3D panoptic segmentation approaches have…

Computer Vision and Pattern Recognition · Computer Science 2024-04-04 Zihao Xiao , Longlong Jing , Shangxuan Wu , Alex Zihao Zhu , Jingwei Ji , Chiyu Max Jiang , Wei-Chih Hung , Thomas Funkhouser , Weicheng Kuo , Anelia Angelova , Yin Zhou , Shiwei Sheng

Recently, instance segmentation has made great progress with the rapid development of deep neural networks. However, there still exist two main challenges including discovering indistinguishable objects and modeling the relationship between…

Computer Vision and Pattern Recognition · Computer Science 2023-04-19 Jinming Su , Ruihong Yin , Xingyue Chen , Junfeng Luo

Most existing instance segmentation methods only focus on improving performance and are not suitable for real-time scenes such as autonomous driving. This paper proposes a real-time framework that segmenting and detecting 3D objects by…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Shengjie Li , Caiyi Xu , Jianping Xing , Yafei Ning , Yonghong Chen

Vision Transformers face a fundamental limitation: standard self-attention jointly processes spatial and channel dimensions, leading to entangled representations that prevent independent modeling of structural and semantic dependencies.…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Jiashu Liao , Pietro Liò , Marc de Kamps , Duygu Sarikaya

We present TubeFormer-DeepLab, the first attempt to tackle multiple core video segmentation tasks in a unified manner. Different video segmentation tasks (e.g., video semantic/instance/panoptic segmentation) are usually considered as…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Dahun Kim , Jun Xie , Huiyu Wang , Siyuan Qiao , Qihang Yu , Hong-Seok Kim , Hartwig Adam , In So Kweon , Liang-Chieh Chen

Panoptic segmentation aims to address semantic and instance segmentation simultaneously in a unified framework. However, an efficient solution of panoptic segmentation in applications like autonomous driving is still an open research…

Computer Vision and Pattern Recognition · Computer Science 2021-09-01 Enxu Li , Ryan Razani , Yixuan Xu , Liu Bingbing

Panoptic segmentation assigns semantic and instance ID labels to every pixel of an image. As permutations of instance IDs are also valid solutions, the task requires learning of high-dimensional one-to-many mapping. As a result,…

Computer Vision and Pattern Recognition · Computer Science 2023-10-16 Ting Chen , Lala Li , Saurabh Saxena , Geoffrey Hinton , David J. Fleet

Modern 3D semantic instance segmentation approaches predominantly rely on specialized voting mechanisms followed by carefully designed geometric clustering techniques. Building on the successes of recent Transformer-based methods for object…

Computer Vision and Pattern Recognition · Computer Science 2023-04-13 Jonas Schult , Francis Engelmann , Alexander Hermans , Or Litany , Siyu Tang , Bastian Leibe

LiDAR segmentation is crucial for autonomous driving perception. Recent trends favor point- or voxel-based methods as they often yield better performance than the traditional range view representation. In this work, we unveil several key…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Lingdong Kong , Youquan Liu , Runnan Chen , Yuexin Ma , Xinge Zhu , Yikang Li , Yuenan Hou , Yu Qiao , Ziwei Liu

Monocular 3D Object Detection represents a challenging Computer Vision task due to the nature of the input used, which is a single 2D image, lacking in any depth cues and placing the depth estimation problem as an ill-posed one. Existing…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Diana-Alexandra Sas , Florin Oniga

Recently, fully-convolutional one-stage networks have shown superior performance comparing to two-stage frameworks for instance segmentation as typically they can generate higher-quality mask predictions with less computation. In addition,…

Computer Vision and Pattern Recognition · Computer Science 2020-11-20 Hao Chen , Chunhua Shen , Zhi Tian

Instance segmentation aims to delineate each individual object of interest in an image. State-of-the-art approaches achieve this goal by either partitioning semantic segmentations or refining coarse representations of detected objects. In…

Computer Vision and Pattern Recognition · Computer Science 2022-10-10 Long Chen , Yuli Wu , Dorit Merhof

Addressing Lidar Panoptic Segmentation (LPS ) is crucial for safe deployment of autonomous vehicles. LPS aims to recognize and segment lidar points w.r.t. a pre-defined vocabulary of semantic classes, including thing classes of countable…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Anirudh S Chakravarthy , Meghana Reddy Ganesina , Peiyun Hu , Laura Leal-Taixe , Shu Kong , Deva Ramanan , Aljosa Osep

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

We propose an end-to-end learning approach for panoptic segmentation, a novel task unifying instance (things) and semantic (stuff) segmentation. Our model, TASCNet, uses feature maps from a shared backbone network to predict in a single…

Computer Vision and Pattern Recognition · Computer Science 2019-05-20 Jie Li , Allan Raventos , Arjun Bhargava , Takaaki Tagawa , Adrien Gaidon

To fully understand the 3D context of a single image, a visual system must be able to segment both the visible and occluded regions of objects, while discerning their occlusion order. Ideally, the system should be able to handle any object…

Computer Vision and Pattern Recognition · Computer Science 2024-05-10 Jiayang Ao , Qiuhong Ke , Krista A. Ehinger

Dense image segmentation tasks e.g., semantic, panoptic) are useful for image editing, but existing methods can hardly generalize well in an in-the-wild setting where there are unrestricted image domains, classes, and image resolution and…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Lu Qi , Jason Kuen , Weidong Guo , Tiancheng Shen , Jiuxiang Gu , Jiaya Jia , Zhe Lin , Ming-Hsuan Yang

In this paper, we aim to tackle the challenging few-shot segmentation task from a new perspective. Typical methods follow the paradigm to firstly learn prototypical features from support images and then match query features in pixel-level…

Computer Vision and Pattern Recognition · Computer Science 2023-01-04 Siyu Jiao , Gengwei Zhang , Shant Navasardyan , Ling Chen , Yao Zhao , Yunchao Wei , Humphrey Shi

This paper presents a unified framework for depth-aware panoptic segmentation (DPS), which aims to reconstruct 3D scene with instance-level semantics from one single image. Prior works address this problem by simply adding a dense depth…

Computer Vision and Pattern Recognition · Computer Science 2022-06-02 Naiyu Gao , Fei He , Jian Jia , Yanhu Shan , Haoyang Zhang , Xin Zhao , Kaiqi Huang

The recently proposed MaskFormer gives a refreshed perspective on the task of semantic segmentation: it shifts from the popular pixel-level classification paradigm to a mask-level classification method. In essence, it generates paired…

Computer Vision and Pattern Recognition · Computer Science 2023-05-31 Zipeng Qin , Jianbo Liu , Xiaolin Zhang , Maoqing Tian , Aojun Zhou , Shuai Yi , Hongsheng Li