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Semantic Segmentation is a crucial component in the perception systems of many applications, such as robotics and autonomous driving that rely on accurate environmental perception and understanding. In literature, several approaches are…

Computer Vision and Pattern Recognition · Computer Science 2021-03-17 Ran Cheng , Ryan Razani , Yuan Ren , Liu Bingbing

In recent years, transformer-based models have exhibited considerable potential in point cloud instance segmentation. Despite the promising performance achieved by existing methods, they encounter challenges such as instance query…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Lei Yao , Yi Wang , Moyun Liu , Lap-Pui Chau

We propose a network architecture to perform efficient scene understanding. This work presents three main novelties: the first is an Improved Guided Upsampling Module that can replace in toto the decoder part in common semantic segmentation…

Computer Vision and Pattern Recognition · Computer Science 2019-05-23 Davide Mazzini , Raimondo Schettini

We introduce a novel deep learning-based framework to interpret 3D urban scenes represented as textured meshes. Based on the observation that object boundaries typically align with the boundaries of planar regions, our framework achieves…

Computer Vision and Pattern Recognition · Computer Science 2022-12-27 Weixiao Gao , Liangliang Nan , Bas Boom , Hugo Ledoux

Instance segmentation is an important problem in computer vision, with applications in autonomous driving, drone navigation and robotic manipulation. However, most existing methods are not real-time, complicating their deployment in…

Computer Vision and Pattern Recognition · Computer Science 2019-07-31 Laurynas Miksys , Saumya Jetley , Michael Sapienza , Stuart Golodetz , Philip H. S. Torr

Panoptic Segmentation aims to provide an understanding of background (stuff) and instances of objects (things) at a pixel level. It combines the separate tasks of semantic segmentation (pixel level classification) and instance segmentation…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Sumanth Chennupati , Venkatraman Narayanan , Ganesh Sistu , Senthil Yogamani , Samir A Rawashdeh

We introduce a novel 3D object proposal approach named Generative Shape Proposal Network (GSPN) for instance segmentation in point cloud data. Instead of treating object proposal as a direct bounding box regression problem, we take an…

Computer Vision and Pattern Recognition · Computer Science 2018-12-11 Li Yi , Wang Zhao , He Wang , Minhyuk Sung , Leonidas Guibas

Real-time understanding in video is crucial in various AI applications such as autonomous driving. This work presents a fast single-shot segmentation strategy for video scene understanding. The proposed net, called S3-Net, quickly locates…

Computer Vision and Pattern Recognition · Computer Science 2020-11-05 Yuan Cheng , Yuchao Yang , Hai-Bao Chen , Ngai Wong , Hao Yu

Instance segmentation of point clouds is a crucial task in 3D field with numerous applications that involve localizing and segmenting objects in a scene. However, achieving satisfactory results requires a large number of manual annotations,…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Zhikai Zhang , Jian Ding , Li Jiang , Dengxin Dai , Gui-Song Xia

Traditional Scene Understanding problems such as Object Detection and Semantic Segmentation have made breakthroughs in recent years due to the adoption of deep learning. However, the former task is not able to localise objects at a pixel…

Computer Vision and Pattern Recognition · Computer Science 2016-09-12 Anurag Arnab , Philip H. S. Torr

Most existing point cloud instance and semantic segmentation methods rely heavily on strong supervision signals, which require point-level labels for every point in the scene. However, such strong supervision suffers from large annotation…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 An Tao , Yueqi Duan , Yi Wei , Jiwen Lu , Jie Zhou

Accurate 3D instance segmentation is crucial for high-quality scene understanding in the 3D vision domain. However, 3D instance segmentation based on 2D-to-3D lifting approaches struggle to produce precise instance-level segmentation, due…

Computer Vision and Pattern Recognition · Computer Science 2025-12-22 Chaolei Wang , Yang Luo , Jing Du , Siyu Chen , Yiping Chen , Ting Han

Instance segmentation is an important task for biomedical and biological image analysis. Due to the complicated background components, the high variability of object appearances, numerous overlapping objects, and ambiguous object…

Computer Vision and Pattern Recognition · Computer Science 2021-02-24 Dongnan Liu , Donghao Zhang , Yang Song , Heng Huang , Weidong Cai

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

Instance segmentation is the problem of detecting and delineating each distinct object of interest appearing in an image. Current instance segmentation approaches consist of ensembles of modules that are trained independently of each other,…

Computer Vision and Pattern Recognition · Computer Science 2016-10-26 Bernardino Romera-Paredes , Philip H. S. Torr

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

Instance segmentation on point clouds is crucially important for 3D scene understanding. Most SOTAs adopt distance clustering, which is typically effective but does not perform well in segmenting adjacent objects with the same semantic…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Weiguang Zhao , Yuyao Yan , Chaolong Yang , Jianan Ye , Xi Yang , Kaizhu Huang

We present a new method for efficient high-quality image segmentation of objects and scenes. By analogizing classical computer graphics methods for efficient rendering with over- and undersampling challenges faced in pixel labeling tasks,…

Computer Vision and Pattern Recognition · Computer Science 2020-02-18 Alexander Kirillov , Yuxin Wu , Kaiming He , Ross Girshick

3D instance segmentation is crucial for obtaining an understanding of a point cloud scene. This paper presents a novel neural network architecture for performing instance segmentation on 3D point clouds. We propose to jointly learn…

Computer Vision and Pattern Recognition · Computer Science 2024-10-04 Remco Royen , Leon Denis , Adrian Munteanu

Segmentation of plant point clouds to obtain high-precise morphological traits is essential for plant phenotyping. Although the fast development of deep learning has boosted much research on segmentation of plant point clouds, previous…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Ruiming Du , Zhihong Ma , Pengyao Xie , Yong He , Haiyan Cen