Results 11 to 20 of about 1,011,444 (276)

Learning 3D Shape Completion Under Weak Supervision [PDF]

International Journal of Computer Vision, 2018
AbstractWe address the problem of 3D shape completion from sparse and noisy point clouds, a fundamental problem in computer vision and robotics. Recent approaches are either data-driven or learning-based: Data-driven approaches rely on a shape model whose parameters are optimized to fit the observations; Learning-based approaches, in contrast, avoid ...
David Stutz, Andreas Geiger
openaire   +6 more sources

Temporally coherent completion of dynamic shapes [PDF]

ACM Transactions on Graphics, 2012
We present a novel shape completion technique for creating temporally coherent watertight surfaces from real-time captured dynamic performances. Because of occlusions and low surface albedo, scanned mesh sequences typically exhibit large holes that persist over extended periods of time.
Li Hao, Luo Linjie, Vlasic Daniel, Peers Pieter, Popovic Jovan, Pauly Mark, Rusinkiewicz Szymon   +6 more
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Shape completion in the dark: completing vertebrae morphology from 3D ultrasound. [PDF]

Int J Comput Assist Radiol Surg
Abstract Purpose Ultrasound (US) imaging, while advantageous for its radiation-free nature, is challenging to interpret due to only partially visible organs and a lack of complete 3D information.
Gafencu MA, Velikova Y, Saleh M, Ungi T, Navab N, Wendler T, Azampour MF.   +6 more
europepmc   +6 more sources

Sparse-to-Dense Multi-Encoder Shape Completion of Unstructured Point Cloud

IEEE Access, 2020
Unstructured point clouds are a representative shape representation of real-world scenes in 3D vision and graphics. Incompletion inevitably arises, due to the way the set of unorganized points is captured, e.g., as fusion of depth images, merged laser ...
Yanjun Peng, Ming Chang, Qiong Wang, Yinling Qian, Yingkui Zhang, Mingqiang Wei, Xiangyun Liao   +6 more
doaj   +3 more sources

Feasibility of automatic screw planning via transformer-based shape completion from RGB-D imaging [PDF]

Scientific Reports
Accurate pedicle screw placement (PSP) is essential in spinal fusion surgery. Conventional navigation relies on computed tomography (CT) or fluoroscopy, which involves ionizing radiation and requires an error-prone registration procedure.
Aidana Massalimova, David Bauer, Nicola Cavalcanti, Fabio Carrillo, Farshad Mazda, Philipp Fuernstahl   +5 more
doaj   +2 more sources

Active Visuo-Haptic Object Shape Completion

IEEE Robotics and Automation Letters, 2022
Recent advancements in object shape completion have enabled impressive object reconstructions using only visual input. However, due to self-occlusion, the reconstructions have high uncertainty in the occluded object parts, which negatively impacts the performance of downstream robotic tasks such as grasping.
Rustler, Lukas, Lundell, Jens, Behrens, Jan Kristof, Kyrki, Ville, Hoffmann, Matej   +5 more
openaire   +5 more sources

Structure-aware completion of plant 3D LiDAR point clouds via a multi-resolution GAN-inversion network [PDF]

Frontiers in Plant Science
IntroductionThree-dimensional (3D) point clouds acquired by LiDAR are fundamental for applications such as autonomous navigation, mobile robotics, infrastructure inspection, and cultural-heritage documentation.
Zhiming Wei, Zhiming Wei, Zhiming Wei, Jianing Long, Zhihong Zhang, Xinyu Xue, Yitian Sun, Yitian Sun, Qinglong Li, Qinglong Li, Wu Liu, Jingxin Shen, Jingxin Shen, Zhikai Zhang, Xiaoju Li, Zhengguo Ma   +15 more
doaj   +2 more sources

Shape completion enabled robotic grasping [PDF]

2017 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2017
This work provides an architecture to enable robotic grasp planning via shape completion. Shape completion is accomplished through the use of a 3D convolutional neural network (CNN). The network is trained on our own new open source dataset of over 440,000 3D exemplars captured from varying viewpoints.
Varley, Jacob, DeChant, Chad, Richardson, Adam, Ruales, Joaquín, Allen, Peter   +4 more
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HSPC-Net: A hierarchical shape-preserving completion network for machine part point cloud completion [PDF]

PLoS ONE
Yuchao Jiang, Honghui Fan, Hongjin Zhu
doaj   +2 more sources

2-D shape completion with shape priors [PDF]

Chinese Science Bulletin, 2013
We propose new techniques for 2-D shape/contour completion, which is one of the important research topics related to shape analysis and computer vision, e.g. the detection of incomplete objects due to occlusion and noises. The purpose of shape completion is to find the optimal curve segments that fill the missing contour parts, so as to acquire the ...
Guo, Ge, Jiang, TingTing, Wang, YiZhou, Gao, Wen   +3 more
openaire   +1 more source