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We propose a method to generate 3D shapes using point clouds. Given a point-cloud representation of a 3D shape, our method builds a kd-tree to spatially partition the points. This orders them consistently across all shapes, resulting in…

Computer Vision and Pattern Recognition · Computer Science 2017-07-21 Matheus Gadelha , Subhransu Maji , Rui Wang

In this paper, we propose an algorithm to generate a static point cloud map based on LiDAR point cloud data. Our proposed pipeline detects dynamic objects using 3D object detectors and projects points of dynamic objects onto the ground.…

Robotics · Computer Science 2024-07-02 Soojin Woo , Donghwi Jung , Seong-Woo Kim

In this paper, we propose an efficient semantic segmentation framework for indoor scenes, tailored to the application on a mobile robot. Semantic segmentation can help robots to gain a reasonable understanding of their environment, but to…

Computer Vision and Pattern Recognition · Computer Science 2014-04-24 Daniel Wolf , Markus Bajones , Johann Prankl , Markus Vincze

Depth information provides valuable insights into the 3D structure especially the outline of objects, which can be utilized to improve the semantic segmentation tasks. However, a naive fusion of depth information can disrupt feature and…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Wei Sun , Yuan Li , Qixiang Ye , Jianbin Jiao , Yanzhao Zhou

3D reconstruction from images is a core problem in computer vision. With recent advances in deep learning, it has become possible to recover plausible 3D shapes even from single RGB images for the first time. However, obtaining detailed…

Computer Vision and Pattern Recognition · Computer Science 2019-12-24 Tao Hu , Geng Lin , Zhizhong Han , Matthias Zwicker

For grasp network algorithms, generating grasp datasets for a large number of 3D objects is a crucial task. However, generating grasp datasets for hundreds of objects can be very slow and consume a lot of storage resources, which hinders…

Robotics · Computer Science 2023-03-24 Xiao Hu , HangJie Mo , XiangSheng Chen , JinLiang Chen , Xiangyu Chen

Image segmentation is to extract meaningful objects from a given image. For degraded images due to occlusions, obscurities or noises, the accuracy of the segmentation result can be severely affected. To alleviate this problem, prior…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Daoping Zhang , Lok Ming Lui

Robotic research encounters a significant hurdle when it comes to the intricate task of grasping objects that come in various shapes, materials, and textures. Unlike many prior investigations that heavily leaned on specialized point-cloud…

Robotics · Computer Science 2024-03-15 Chang Liu , Kejian Shi , Kaichen Zhou , Haoxiao Wang , Jiyao Zhang , Hao Dong

Implicit neural fields have made remarkable progress in reconstructing 3D surfaces from multiple images; however, they encounter challenges when it comes to separating individual objects within a scene. Previous work has attempted to tackle…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Gemmechu Hassena , Jonathan Moon , Ryan Fujii , Andrew Yuen , Noah Snavely , Steve Marschner , Bharath Hariharan

Over-segmentation, or super-pixel generation, is a common preliminary stage for many computer vision applications. New acquisition technologies enable the capturing of 3D point clouds that contain color and geometrical information. This 3D…

Computer Vision and Pattern Recognition · Computer Science 2020-04-28 Yizhak Ben-Shabat , Tamar Avraham , Michael Lindenbaum , Anath Fischer

3D Gaussian Splatting has emerged as an alternative 3D representation for novel view synthesis, benefiting from its high-quality rendering results and real-time rendering speed. However, the 3D Gaussians learned by 3D-GS have ambiguous…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Xu Hu , Yuxi Wang , Lue Fan , Chuanchen Luo , Junsong Fan , Zhen Lei , Qing Li , Junran Peng , Zhaoxiang Zhang

We present a novel graph-neural-network-based system to effectively represent large-scale 3D point clouds with the applications to autonomous driving. Many previous works studied the representations of 3D point clouds based on two…

Signal Processing · Electrical Eng. & Systems 2019-06-28 Siheng Chen , Sufeng. Niu , Tian Lan , Baoan Liu

Many point-based semantic segmentation methods have been designed for indoor scenarios, but they struggle if they are applied to point clouds that are captured by a LiDAR sensor in an outdoor environment. In order to make these methods more…

Computer Vision and Pattern Recognition · Computer Science 2021-12-06 Shijie Li , Yun Liu , Juergen Gall

Point cloud 3D object detection has recently received major attention and becomes an active research topic in 3D computer vision community. However, recognizing 3D objects in LiDAR (Light Detection and Ranging) is still a challenge due to…

Computer Vision and Pattern Recognition · Computer Science 2020-10-30 Yilin Wang , Jiayi Ye

The goal of this paper is to discover, segment, and track independently moving objects in complex visual scenes. Previous approaches have explored the use of optical flow for motion segmentation, leading to imperfect predictions due to…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Junyu Xie , Weidi Xie , Andrew Zisserman

As a consequence of an ever-increasing number of service robots, there is a growing demand for highly accurate real-time 3D object recognition. Considering the expansion of robot applications in more complex and dynamic environments,it is…

Computer Vision and Pattern Recognition · Computer Science 2021-06-01 Nils Keunecke , S. Hamidreza Kasaei

Current state-of-the-art video object segmentation models have achieved great success using supervised learning with massive labeled training datasets. However, these models are trained using a single source domain and evaluated using…

Computer Vision and Pattern Recognition · Computer Science 2024-05-31 Islam Osman , Mohamed S. Shehata

A learning-based 3D reconstruction method for long-span bridges is proposed in this paper. 3D reconstruction generates a 3D computer model of a real object or scene from images, it involves many stages and open problems. Existing…

Computer Vision and Pattern Recognition · Computer Science 2020-05-22 Fangqiao Hu , Jin Zhao , Yong Huang , Hui Li

This work introduces a new task of instance-incremental scene graph generation: Given a scene of the point cloud, representing it as a graph and automatically increasing novel instances. A graph denoting the object layout of the scene is…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Chao Qi , Jianqin Yin , Jinghang Xu , Pengxiang Ding

Point cloud semantic segmentation plays an essential role in autonomous driving, providing vital information about drivable surfaces and nearby objects that can aid higher level tasks such as path planning and collision avoidance. While…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Ozan Unal , Luc Van Gool , Dengxin Dai
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