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This paper addresses the challenge of 3D instance segmentation by simultaneously leveraging 3D geometric and multi-view image information. Many previous works have applied deep learning techniques to 3D point clouds for instance…

计算机视觉与模式识别 · 计算机科学 2024-08-05 Haoyu Guo , He Zhu , Sida Peng , Yuang Wang , Yujun Shen , Ruizhen Hu , Xiaowei Zhou

3D panoptic segmentation is a challenging perception task that requires both semantic segmentation and instance segmentation. In this task, we notice that images could provide rich texture, color, and discriminative information, which can…

计算机视觉与模式识别 · 计算机科学 2023-08-15 Zhiwei Zhang , Zhizhong Zhang , Qian Yu , Ran Yi , Yuan Xie , Lizhuang Ma

Out-of-distribution (OOD) detection in 3D point cloud data remains a challenge, particularly in applications where safe and robust perception is critical. While existing OOD detection methods have shown progress for 2D image data, extending…

计算机视觉与模式识别 · 计算机科学 2025-06-30 Tiankai Chen , Yushu Li , Adam Goodge , Fei Teng , Xulei Yang , Tianrui Li , Xun Xu

Given the prominence of current 3D sensors, a fine-grained analysis on the basic point cloud data is worthy of further investigation. Particularly, real point cloud scenes can intuitively capture complex surroundings in the real world, but…

计算机视觉与模式识别 · 计算机科学 2021-04-14 Shi Qiu , Saeed Anwar , Nick Barnes

Direct automatic segmentation of objects from 3D medical imaging, such as magnetic resonance (MR) imaging, is challenging as it often involves accurately identifying a number of individual objects with complex geometries within a large…

图像与视频处理 · 电气工程与系统科学 2021-09-23 Wei Dai , Boyeong Woo , Siyu Liu , Matthew Marques , Craig B. Engstrom , Peter B. Greer , Stuart Crozier , Jason A. Dowling , Shekhar S. Chandra

Robots operating in unstructured environments often require accurate and consistent object-level representations. This typically requires segmenting individual objects from the robot's surroundings. While recent large models such as Segment…

机器人学 · 计算机科学 2025-04-07 Haozhan Tang , Tianyi Zhang , Oliver Kroemer , Matthew Johnson-Roberson , Weiming Zhi

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…

计算机视觉与模式识别 · 计算机科学 2019-01-07 Tomasz Konopczyński , Thorben Kröger , Lei Zheng , Jürgen Hesser

3D single object tracking remains a challenging problem due to the sparsity and incompleteness of the point clouds. Existing algorithms attempt to address the challenges in two strategies. The first strategy is to learn dense geometric…

计算机视觉与模式识别 · 计算机科学 2023-12-19 Jingwen Zhang , Zikun Zhou , Guangming Lu , Jiandong Tian , Wenjie Pei

3D object detection within large 3D scenes is challenging not only due to the sparsity and irregularity of 3D point clouds, but also due to both the extreme foreground-background scene imbalance and class imbalance. A common approach is to…

计算机视觉与模式识别 · 计算机科学 2024-03-18 Oren Shrout , Yizhak Ben-Shabat , Ayellet Tal

Segmenting arbitrary 3D objects into constituent parts that are structurally meaningful is a fundamental problem encountered in a wide range of computer graphics applications. Existing methods for 3D shape segmentation suffer from complex…

图形学 · 计算机科学 2020-10-23 Cheng Lin , Lingjie Liu , Changjian Li , Leif Kobbelt , Bin Wang , Shiqing Xin , Wenping Wang

Reconstructing and processing the 3D objects are popular activities in the research field of computer graphics, image processing and computer vision. The 3D objects are processed based on the methods like geometric modeling, a branch of…

计算机视觉与模式识别 · 计算机科学 2023-10-18 Sinh Van Nguyen , Son Thanh Le , Minh Khai Tran , Le Thanh Sach

With the development of large language models, many remarkable linguistic systems like ChatGPT have thrived and achieved astonishing success on many tasks, showing the incredible power of foundation models. In the spirit of unleashing the…

计算机视觉与模式识别 · 计算机科学 2024-01-30 Dingyuan Zhang , Dingkang Liang , Hongcheng Yang , Zhikang Zou , Xiaoqing Ye , Zhe Liu , Xiang Bai

Segmentation of overlapping convex objects has various applications, for example, in nanoparticles and cell imaging. Often the segmentation method has to rely purely on edges between the background and foreground making the analyzed images…

计算机视觉与模式识别 · 计算机科学 2019-06-05 Sahar Zafari , Mariia Murashkina , Tuomas Eerola , Jouni Sampo , Heikki Kälviäinen , Heikki Haario

We propose a new supervized learning framework for oversegmenting 3D point clouds into superpoints. We cast this problem as learning deep embeddings of the local geometry and radiometry of 3D points, such that the border of objects presents…

计算机视觉与模式识别 · 计算机科学 2019-04-04 Loic Landrieu , Mohamed Boussaha

Open-vocabulary part segmentation (OVPS) is an emerging research area focused on segmenting fine-grained entities using diverse and previously unseen vocabularies. Our study highlights the inherent complexities of part segmentation due to…

计算机视觉与模式识别 · 计算机科学 2024-12-09 Jiho Choi , Seonho Lee , Seungho Lee , Minhyun Lee , Hyunjung Shim

Semi-supervised video object segmentation (VOS) aims to segment arbitrary target objects in video when the ground truth segmentation mask of the initial frame is provided. Due to this limitation of using prior knowledge about the target…

计算机视觉与模式识别 · 计算机科学 2020-09-21 Suhwan Cho , Heansung Lee , Sungmin Woo , Sungjun Jang , Sangyoun Lee

Visual spatial description (VSD) aims to generate texts that describe the spatial relations of the given objects within images. Existing VSD work merely models the 2D geometrical vision features, thus inevitably falling prey to the problem…

计算机视觉与模式识别 · 计算机科学 2023-05-26 Yu Zhao , Hao Fei , Wei Ji , Jianguo Wei , Meishan Zhang , Min Zhang , Tat-Seng Chua

Progress in self-supervised learning has brought strong general image representation learning methods. Yet so far, it has mostly focused on image-level learning. In turn, tasks such as unsupervised image segmentation have not benefited from…

计算机视觉与模式识别 · 计算机科学 2022-06-22 Adrian Ziegler , Yuki M. Asano

3D object recognition accuracy can be improved by learning the multi-scale spatial features from 3D spatial geometric representations of objects such as point clouds, 3D models, surfaces, and RGB-D data. Current deep learning approaches…

计算机视觉与模式识别 · 计算机科学 2019-05-07 Sambit Ghadai , Xian Lee , Aditya Balu , Soumik Sarkar , Adarsh Krishnamurthy

The ability to detect and segment moving objects in a scene is essential for building consistent maps, making future state predictions, avoiding collisions, and planning. In this paper, we address the problem of moving object segmentation…

机器人学 · 计算机科学 2021-07-15 Xieyuanli Chen , Shijie Li , Benedikt Mersch , Louis Wiesmann , Jürgen Gall , Jens Behley , Cyrill Stachniss