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This paper presents new designs of graph convolutional neural networks (GCNs) on 3D meshes for 3D object segmentation and classification. We use the faces of the mesh as basic processing units and represent a 3D mesh as a graph where each…

计算机视觉与模式识别 · 计算机科学 2021-07-01 Wenming Tang Guoping Qiu

Estimating accurate lane lines in 3D space remains challenging due to their sparse and slim nature. Previous works mainly focused on using images for 3D lane detection, leading to inherent projection error and loss of geometry information.…

计算机视觉与模式识别 · 计算机科学 2023-08-10 Yueru Luo , Xu Yan , Chaoda Zheng , Chao Zheng , Shuqi Mei , Tang Kun , Shuguang Cui , Zhen Li

Although unsupervised feature learning has demonstrated its advantages to reducing the workload of data labeling and network design in many fields, existing unsupervised 3D learning methods still cannot offer a generic network for various…

计算机视觉与模式识别 · 计算机科学 2021-03-15 Peng-Shuai Wang , Yu-Qi Yang , Qian-Fang Zou , Zhirong Wu , Yang Liu , Xin Tong

We present a new approach to 3D object representation where a neural network encodes the geometry of an object directly into the weights and biases of a second 'mapping' network. This mapping network can be used to reconstruct an object by…

机器学习 · 计算机科学 2020-04-07 Eric Mitchell , Selim Engin , Volkan Isler , Daniel D Lee

We propose a novel video object segmentation algorithm based on pixel-level matching using Convolutional Neural Networks (CNN). Our network aims to distinguish the target area from the background on the basis of the pixel-level similarity…

计算机视觉与模式识别 · 计算机科学 2017-08-18 Jae Shin Yoon , Francois Rameau , Junsik Kim , Seokju Lee , Seunghak Shin , In So Kweon

We address the problem of recovering the 3D geometry of a human face from a set of facial images in multiple views. While recent studies have shown impressive progress in 3D Morphable Model (3DMM) based facial reconstruction, the settings…

计算机视觉与模式识别 · 计算机科学 2019-04-10 Fanzi Wu , Linchao Bao , Yajing Chen , Yonggen Ling , Yibing Song , Songnan Li , King Ngi Ngan , Wei Liu

Deep learning for medical image classification faces three major challenges: 1) the number of annotated medical images for training are usually small; 2) regions of interest (ROIs) are relatively small with unclear boundaries in the whole…

计算机视觉与模式识别 · 计算机科学 2019-10-23 Shaohua Li , Yong Liu , Xiuchao Sui , Cheng Chen , Gabriel Tjio , Daniel Shu Wei Ting , Rick Siow Mong Goh

In visual computing, 3D geometry is represented in many different forms including meshes, point clouds, voxel grids, level sets, and depth images. Each representation is suited for different tasks thus making the transformation of one…

计算机视觉与模式识别 · 计算机科学 2022-09-02 Trevor Houchens , Cheng-You Lu , Shivam Duggal , Rao Fu , Srinath Sridhar

This paper aims at recovering the shape of a scene with unknown, non-Lambertian, and possibly spatially-varying surface materials. When the shape of the object is highly complex and that shadows cast on the surface, the task becomes very…

计算机视觉与模式识别 · 计算机科学 2022-03-25 Junxuan Li , Hongdong Li

There is an increasing interest in applying deep learning to 3D mesh segmentation. We observe that 1) existing feature-based techniques are often slow or sensitive to feature resizing, 2) there are minimal comparative studies and 3)…

图形学 · 计算机科学 2018-02-09 David George , Xianghua Xie , Gary KL Tam

We present a new method for 3D shape reconstruction from a single image, in which a deep neural network directly maps an image to a vector of network weights. The network \textcolor{black}{parametrized by} these weights represents a 3D…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Gidi Littwin , Lior Wolf

This work provides an architecture that incorporates depth and tactile information to create rich and accurate 3D models useful for robotic manipulation tasks. This is accomplished through the use of a 3D convolutional neural network (CNN).…

机器人学 · 计算机科学 2023-02-13 David Watkins , Jacob Varley , Peter Allen

This paper introduces a 3D shape generative model based on deep neural networks. A new image-like (i.e., tensor) data representation for genus-zero 3D shapes is devised. It is based on the observation that complicated shapes can be well…

计算机视觉与模式识别 · 计算机科学 2019-03-05 Heli Ben-Hamu , Haggai Maron , Itay Kezurer , Gal Avineri , Yaron Lipman

Relational information between different types of entities is often modelled by a multilayer network (MLN) -- a network with subnetworks represented by layers. The layers of an MLN can be arranged in different ways in a visual…

In view-based 3D shape recognition, extracting discriminative visual representation of 3D shapes from projected images is considered the core problem. Projections with low discriminative ability can adversely influence the final 3D shape…

计算机视觉与模式识别 · 计算机科学 2018-08-22 Biao Leng , Cheng Zhang , Xiaocheng Zhou , Cheng Xu , Kai Xu

Monocular 3D object parsing is highly desirable in various scenarios including occlusion reasoning and holistic scene interpretation. We present a deep convolutional neural network (CNN) architecture to localize semantic parts in 2D image…

计算机视觉与模式识别 · 计算机科学 2017-04-24 Chi Li , M. Zeeshan Zia , Quoc-Huy Tran , Xiang Yu , Gregory D. Hager , Manmohan Chandraker

Multi-view projection techniques have shown themselves to be highly effective in achieving top-performing results in the recognition of 3D shapes. These methods involve learning how to combine information from multiple view-points. However,…

计算机视觉与模式识别 · 计算机科学 2025-05-28 Abdullah Hamdi , Faisal AlZahrani , Silvio Giancola , Bernard Ghanem

We present an Adaptive Octree-based Convolutional Neural Network (Adaptive O-CNN) for efficient 3D shape encoding and decoding. Different from volumetric-based or octree-based CNN methods that represent a 3D shape with voxels in the same…

计算机视觉与模式识别 · 计算机科学 2020-02-27 Peng-Shuai Wang , Chun-Yu Sun , Yang Liu , Xin Tong

We consider the problem of planning views for a robot to acquire images of an object for visual inspection and reconstruction. In contrast to offline methods which require a 3D model of the object as input or online methods which rely on…

机器人学 · 计算机科学 2019-10-07 Selim Engin , Eric Mitchell , Daewon Lee , Volkan Isler , Daniel D. Lee

3D shape recognition has attracted more and more attention as a task of 3D vision research. The proliferation of 3D data encourages various deep learning methods based on 3D data. Now there have been many deep learning models based on…

计算机视觉与模式识别 · 计算机科学 2020-03-02 Yaxin Zhao , Jichao Jiao , Tangkun Zhang